Figure Eight

A 50,072-word book generated by a script written by Kevan Davis for NaNoGenMo 2024, using text and images of public domain instructional books from Project Gutenberg.

1. The Hydrogen Receiver

See Chapter VIII. Making Seams and Joints. The stop-cock and pipe conveying oxygen, and fitting inside the larger tube h h., to which is attached a stop-cock, h., connected with the hydrogen receiver.

Figure 1
Make an Allemande sauce; and when done, add to it two ounces of butter and half a gill of consommé; stir and mix, and place on a brisk fire to start it boiling at once; take it from the fire as soon as it becomes thick; then add a few drops of lemon-juice, and use. (Fig. 1) Make a roux; add to it about half a pint of chicken gravy; stir or boil five or six minutes; then add two ounces of butter, the juice of a lemon, a pinch of parsley chopped fine; give one boil, and use. The way you do this will again depend very largely on the thickness of the metals, but in any event where the pieces meet, a seam or a joint must be made. A strong butt seam can be made by hard soldering or brazing the edges together but it takes a hot flame and considerable skill to do a good job of this kind.

In making corner joints one or both edges of the sheet should be bent over as pictured at E when they can be soldered, riveted or bolted together; or a grooved seam can be made as shown at F if the metal is thin enough. Different metals require fluxes of different kinds. When soldering bright new tinware use powdered resin for the flux, but if the parts are old then scrape and clean them well and use a flux of zinc chloride solution.

Figure 2
The orifice near which the gases mix, and where they are burnt. (Fig. 2) The gases are stored either in copper gasometers or in air-tight bags of Macintosh cloth, capable of containing from four to six cubic feet of gas, and provided with pressure boards. It is used especially with roasted chicken and game. Gas bag and pressure boards. If you use fresh tomatoes, blanch them first; if preserved, use them as they are in the can.

2. The Vertical Pieces

Attach the four braces for the feet with finishing nails after applying a good coat of glue.

Figure 3
By using smaller brads, or tacks, a much larger number could be lifted. (Fig. 3) The difference between an electro-magnet and the toy variety of horse-shoe magnet with which every boy is familiar, is that the electro-magnet retains its magnetism only so long as an electric current is passing around it, while the steel magnet retains its influence permanently, after being magnetized, unless it happens to be demagnetized by subjection to heat, or in some other way.

As it has been well proved that tasteless food is less easily or thoroughly digested than food which has a good flavour, owing, probably, to the fact that high-flavoured food stimulates the flow of digestive juices, the advantage lies in this respect also with hay-box food over much of the ordinary food served. The horizontal bars are fastened to the vertical pieces with rivets using washers on both sides. The holes are bored a little large so as to make a slightly loose joint. The bearing of fireless cookery upon the servant-problem might well fill a chapter by itself. Any woman who uses this device for a year can become eloquent upon this subject.

The other ends of the bars are fastened to the center post with round head screws. They are fastened, as shown in the cross-section sketch, so it can be folded up. Contributed by Herman Fosel, Janesville, Wis.

Figure 4
A Shower Bath That Costs Less Than One Dollar to Make. (Fig. 4) While in the country during vacation time, I missed my daily bath and devised a shower bath that gave complete satisfaction. The back porch was enclosed with sheeting for the room, and the apparatus consisted of a galvanized-iron pail with a short nipple soldered in the center of the bottom and fitted with a valve and sprinkler.

When an electric current passes over a wire, a magnetic field is formed around the wire; and when several turns of insulated wire are wrapped about a soft iron core, the magnetic fields of all the turns of the coil, or helix, combine, forming a very strong magnetic field which strongly magnetizes the iron core. As I have said before, this magnet loses its magnetic influence the instant the current ceases to pass through the surrounding coil of wire. You will need a machine-bolt or carriage-bolt 2½ or 3 inches long, and ¼ inch in diameter, for the core of the magnet, some insulated electric-bell wire for the coil, and a piece of heavy cardboard. How the Electro-magnet is Connected up.

Before starting to wind the insulated wire upon the bolt, pierce two holes through the inner cardboard washer of the two at the nut end. Then stick the end of the wire through one of these holes, and pull a length of 4 or 5 inches of the wire out between the two washers. We shall save her wages, her food, her room, and her waste, and have more to spend in ways that bring a more satisfactory return.

3. Supplying the Chickens

Serve it warm, but not hot.

Figure 5
Serves five or six persons. (Fig. 5) A practical drinking vessel is made of a Mason glass jar.

Make perforations in the top of the jar with a nail and tack two strips of wood across the top crosswise to raise the jar from the saucer or plate. This allows the water to flow freely from the jar as fast as the chickens can drink it from the saucer, and the covered jar keeps the drinking water clean. This, with windows cut in the sides of the tub, gives a better ventilation for the chickens. A door through which the chickens enter is cut in the front. Outside of the brooder and on one end of the platform is a simple watering device supplying the chickens with fresh water.

The steel scraper is to be used for finishing after the piece has been made as smooth as is possible with the spokeshave.

Figure 6
For this reason the fundamental principles underlying the making of good butter should be practised as much by the farm woman, making butter in small quantities for the market or the consumption in the home, as by the operator of a large creamery establishment. (Fig. 6) It is served as a hors-d'oeuvre, pickled, and cut in slices. Set it on a good fire in a pan, covered with cold water, and boil gently till done. Laying out Duplicate Parts. To lay out these parts, that is, to mark out the location of intended gains, mortises, shoulders of tenons, etc., so that all shall be alike, the following method is used: On the face edge of one of the pieces measure off with the rule and mark with knife the points at which the lines for the joints are to be squared across.

The beet must not be touched at all with any thing rough, for if the skin or root is cut or broken, all the color goes away in boiling, it is not fit to decorate, and loses much of its quality. Wash and core sour apples of uniform size. To do this, turn the wooden frame upon its edge and place the spool over the nail, being careful to get the nail in the exact center of the hole. When the hole has been partially filled, allow the wax to harden a little, and then press it down around the nail with the end of a match, being careful not to throw the spool out of center by doing so.

Figure 7
The hole should then be filled to the top. (Fig. 7)

In such a case it will probably be necessary to have some device, perhaps ice-tongs, for removing the stones, as the metal handles might in time become burned off, bent, or weakened so as to be unsafe. Small soapstone griddles or foot-warmers make excellent slabs for the home-made insulated oven. Griddles are on the market that are as small as twelve inches in diameter, and foot-warmers come in many sizes. Those measuring eight by ten inches will be about as large as most women can easily handle, since they are thicker than the griddles, and are very heavy for their size. It will not be difficult to get an extra handle fitted to these, which will make them less awkward to manage.

4. A Walnut Shell

If in this way you can secure eight glasses tuned exactly to an octave, then you have the wherewithal to produce tunes. A Fleet of Nutshell Boats floating on a bowl of water makes a very pretty little picture—nor are these little crafts at all difficult to make. For the hull a nice evenly-shaped walnut shell is required: this should be cleaned out, trimmed with a sharp knife, and scrubbed with a stiff brush. The coins should be laid in a row on the table and whatever note you want to ring out pick up the coin which will produce it, hold it as shown at B, and give it a little spin. You can soon learn to spin them with either hand and keep two or more of them going at the same time, when you will have that agreeable combination of tones that is known in music as harmony.

Figure 8
The musical coins are easy to learn to play and at a little distance off they look like real coins and are a very pleasing novelty. (Fig. 8)

Be that as it may, get eight tomato cans, soak the labels off carefully and keep them. Then put the fish in with from six to twelve mushrooms, broth enough to cover the whole, if the broth and wine already in do not cover it; boil gently for about half an hour, or till the fish is cooked, tossing the saucepan now and then; dish the fish; place the mushrooms and onions all over; sprinkle the sauce over it through a strainer, and serve warm. Croutons may be served around.

Prepare and cut the fish as for the above, but instead of frying it put it in a saucepan, into which you have put previously about half a dozen sprigs of parsley, two of thyme, two bay-leaves, two cloves of garlic, twelve small onions, two cloves, salt, and pepper; when the fish is placed over the above seasonings, cover entirely with claret wine. Set the saucepan on a sharp fire, and, as soon as it boils, throw into it a glass of French brandy, set it on fire, and let it burn.

Figure 9
It will not burn very long, but enough to give a good taste to it. (Fig. 9)

For the mast a match stick will suffice. To keep this in position glue two match sticks right across the widest part of the hull—one on each side of the mast—and then put a daub of glue at the bottom of the hull and others where the cross-bars touch the mast. The sail consists merely of a piece of paper with two holes through which the mast passes. One other toy which has always been deservedly popular is.

If you are skilful with your pocket knife you can cut out a representation of the animal from a lump of wood, and paint it to make it more realistic. If, however, you have not the requisite skill, you can still construct the toy by using a walnut shell in place of the carved model. The sum of the 4th and 5th 31 5.

Figure 10
The sum of the 1st and last     20 You must then add together the 1st, 3d and 5th sums, viz. (Fig. 10) The half of this is the 1st number, 4; if you take this from the sum of the 1st and 2d you will have the 2d number, 6; this taken from the sum of the 2d and 3d will give you the 3d, 9; and so on for the other numbers. Where one or more of the numbers are 10, or more than 10, and where an even number of numbers has been thought of.

5. A Penetrating Understanding

The electrical current passes back again into the zinc at the points of its contact with the platinum, and thus a continued current is kept up, and hence it is called a galvanic circle. Dissolve a single grain of copper in about one dram of nitric acid, and dilute the solution with about one ounce of water, when it will be evident that a single drop of the mixture must contain an almost immeasurably small portion of copper. The moment the circuit is broken by separating the wires, the current ceases, but is again renewed by making them touch either in or out of the water. In some kinds of dovetailing, such as the half-blind dovetail, the mortises are made first and the tenons marked out from them by superposition.

These lines will be at a distance from the ends equal to the respective thicknesses of the pieces. Yet, if the blade of a knife be dipped into it, it will become covered with a coat of copper; thus showing that the copper can be infinitely divided without any alteration in its properties.

Figure 11
Electricity is one of the most active principles in nature. (Fig. 11) It exists in all bodies, and is exhibited by various means, one of which, and the most generally employed, is friction; but the bodies rubbed together must consist of different substances; for, if they are alike, electricity will not be evolved. Some substances, such as soot, charcoal, iron, gold, silver, copper, and other metals, water, &c., are called good conductors, because they transfer with great facility to other bodies the electric fluid, which glides over the surface with the velocity of light; while others, such as silk, wool, hair, feathers, dry paper, leather, glass, wax, &c., are called non-conductors, because they resist the progress of the fluid, which accumulates all the time the friction continues. It is from these media that are obtained the usual phenomena of electricity, as exhibited in the experiments which we shall hereafter describe. Its effects are felt in almost every part of nature; the awful lightning is the exhibition of the electric fluid, which accumulates in the clouds, and which is discharged when the heavy lurid masses come in contact with each other; the mysterious sweeping whirlwind, the terrific rising and rolling of the sand in the desert wilds of Africa, and the beautiful yet evanescent Aurora Borealis of the northern climes, are amongst a few of its effects.

The next branch of the science of Electricity is GALVANISM., or, as it is sometimes called, Voltaic Electricity; it is obtained through the simple contact of different conducting bodies with each other. It was first discovered at Bologna, in the year 1791, by the lady of Louis Galvani, an Italian philosopher of great merit, and professor of anatomy; from whom, indeed, the science received its name. If a small quantity of sulphuric acid be added to the water, the phenomenon will be more apparent.

Determine the number of tenons wanted and square center lines across the end of the member which is to have the tenons.

Figure 12
Place these center lines so that the intervening spaces shall be equal. (Fig. 12) Measure along an arris and mark on either side of these center lines one-half of the desired width of the tenon. Set the bevel for the amount of flare desired.

Mark the flares on either side of the center lines. Place the bevel so that the wide side of the tenon shall be formed on the face side of the piece. His wife being possessed of a penetrating understanding, and passionately loving him, took a lively interest in the science which so much occupied his attention. At the time the incident we are about to narrate took place, she was in a declining state of health, and taking soup made of frogs, by way of restorative. Some of these animals, skinned for the purpose, happened to be lying on the table of Galvani's laboratory, where also stood an electrical machine, when the point of a knife was unintentionally brought into contact with the nerves of one of the frog's legs, which lay close to the conductor of the machine, and immediately the muscles of the limb were violently agitated.

Figure 13
Carry these lines back on each side of the piece as far as the lines previously drawn across these sides. (Fig. 13) With a fine tenon saw rip accurately to the lines. The end of the wire attached to the piece of platinum or copper is called the positive pole of the battery, and that of the wire attached to the zinc is the negative pole.

6. The Wrong Place

Insist on perfect work in relatively unimportant products; send back for refinishing those which have the least flaw. Approve other defective parts whose flaws are not visible to the naked eye. Make mistakes in routing so that parts and materials will be sent to the wrong place in the plant.

When training new workers, give incomplete or misleading instructions. To lower morale and with it, production, be pleasant to inefficient workers; give them undeserved promotions.

Figure 14
Discriminate against efficient workers; complain unjustly about their work. (Fig. 14) Hold conferences when there is more critical work to be done. It will be necessary to furnish a sketch giving all the dimensions of the shaft, which should be designed to suit the dimensions of the boat, taking care that sufficient clearance is allowed, so that the cranks in revolving will not strike the operator's knees.

If desired, split-wood handles may be placed on the cranks, to prevent them from rubbing the hands. A two foot rule; the end a. The stick held perpendicularly.

The angle a b c. Multiply paper work in plausible ways. Multiply the procedures and clearances involved in issuing instructions, pay checks, and so on.

Figure 15
Oxygen supports animal life; carbonic acid, vegetable life; and the use of the nitrogen, otherwise than as a diluent, is not known. (Fig. 15)

See that three people have to approve everything where one would do. Apply all regulations to the last letter. Make mistakes in quantities of material when you are copying orders. Air begins to be very bad when the oxygen is reduced to 20.60 parts in 100. Prolong correspondence with government bureaus.

7. The Canopy Uprights

Fasten the ends to the canopy uprights with tacks. The Seat-arms are pieces of bent wire, with their ends stuck into holes in the canopy uprights and front edge of the seat. The Steering-wheel is a section of a spool 1/8 inch thick, and is glued upon the end of a pencil or a stick.

Figure 16
The mortise should be cut before the groove is plowed. (Fig. 16)

The tenon, after being worked the full width, is gaged from the face edge to a width equal to the length of the mortise and worked to that size. Especial care must be taken in gluing up the frame that no glue shall get into the grooves or on the edges of the panel. 184 shows a corner of a frame rabbeted to receive a glass. Rabbets are best worked with either a rabbet plane or the combination plane. When done, dish the fish carefully, place the mushrooms all over it, the onions all around, strain the sauce over the whole, and serve warm. Croutons may also be served with the rest; put around the fish one crouton, then an onion, and so on, all around.

Figure 17
The Levers, fasten two small sticks to the end of the bottom piece D with small staples. (Fig. 17) This interesting toy, with its funny animal targets, and a harmless pistol with which to shoot at them, will provide an endless amount of fun for a winter's evening or stormy afternoon. The targets can be arranged to suit the form of box that you find, and the number may be increased or decreased to suit the space. It is held in place by nails driven through the box ends into its ends. In rabbeting across the grain the spur must be set parallel with the edges of the cutter.

8. The Ingredients Together

Serves five or six persons. To test the temperature of fat for fish balls, drop a cube of stale bread into the fat. If it grows a rich brown in forty seconds the fat is of the right temperature. Dredge the meat with the flour, brown it and the onions in a frying-pan with any fat suitable for cooking. Put all the ingredients into a cooker-pail, barely cover them with boiling water, and let the stew boil five minutes before putting it into a cooker for four hours or more.

Figure 18
This piece rests on wires above the bottom of the drier. (Fig. 18)

The legs are made of four pieces of sheet steel bent on an angle as indicated in the drawing. Serves six or eight persons. Put all the ingredients together, scraping from the frying-pan all of the flour and fat. Add enough water to barely cover them, let them boil for five minutes, and put them into the cooker for six hours or more, depending upon the beans. If they are old and tough they may require more than six hours to cook.

In Syria this stew is always served with boiled or steamed rice. If fat is too hot, fried food is injured in flavour and digestibility; if not hot enough the food will be greasy.

Figure 19
Serves six or eight persons. (Fig. 19)

If fish balls fall apart in the frying, it is because the fish and potatoes were not well dried before adding the other ingredients. Serves four or six persons. Salt Fish Soufflé 1 cup salt codfish 1 heaping pt. When drained and dried, add the butter, milk, pepper, and yolks of eggs; then the whites, beaten stiff.

Serves eight or ten persons. This is tacked on the underside of the frame of the trays. By referring to the drawing it will be observed that the bottom tray is shoved back as far as it will go; the next tray above is pulled as far front as the door will admit; the next tray is shoved back and so on with each tray shoving one to the back and pulling the other to the front. But you can do a very good job of casting pewter by making and using plaster of Paris molds.

Figure 20
When these pins set in the holes they keep the top and bottom parts of the flask together so that after the mold is made they can be taken apart and the pattern removed and then when they are put together again ready for the metal to be poured they will be exactly even. (Fig. 20) If that kind obtained from bones, and termed bone black or ivory black, is roughly powdered, and placed in a flask with some solution of indigo or some vinegar, or syrup obtained by dissolving common moist sugar in water, and boiled for a short period, the colour is removed, and on filtering the liquid it is found to be as clear and colourless as water, provided sufficient ivory black has been employed.

Charcoal is a disinfectant, and is used for respirators; it has even been recommended medically, and charcoal lozenges can be bought at various chemists' shops. Rub the fish and butter together, add the other ingredients, and put all into a buttered one-quart bread-mould or water-tight empty coffee or baking-powder can. Set the mould in enough cold water to reach two-thirds of the way up its sides. Let this come to a boil, boil fifteen minutes and put into the cooker for one hour. It will not be injured by remaining in the hay-box two hours. Or set the mould into boiling water, boil one-half hour, and put into the cooker for an hour.

9. The Contents Emptied

Figure 21
When there is water in lard, it flies all over the fire; in that case, boil it a few minutes with a cover on the pan, and then use. (Fig. 21) The principle of the reflecting spy-glass may be comprehended by reference to the next cut. A picture of enemy's battery is supposed to be on the mirror, a., whence it is reflected to b., and from that to the artilleryman at c.. You can get one at any drygoods store. Fasten the blades to the spokes with nails long enough to drive through the spokes and clinch on the under side. Glue the spokes in the hub holes, turning them so the blades will stand at about the angle shown.

Two adjoining rooms might have their looking-glasses arranged in that manner, provided there is a passage running behind them. A mirror at an angle of 45 degrees. The Shaft should be made of a hard wood stick about ¾ inch by 1½ inches by 30 inches in size. Cut the slot in the square end with a saw. The arrows show the direction of the reflected image.

Figure 22
Pivot the Windmill upon the top of a post support, in the same manner as directed for the other windmills. (Fig. 22) How the Windmill may be Rigged up to Operate a Toy Jumping-Jack. Take beef suet, the part around the kidneys, or any kind of fat, raw or cooked; remove as much as possible fibres, nerves, thin skin, or bones; chop it fine, put it in a cast-iron or crockery kettle; add to it the fat you may have skimmed from the top of broth, sauces or, gravies. Set the pan on a moderate fire; boil gently for about fifteen minutes, skim it well during the process; take from the fire, let it stand about five minutes, and then strain.

The second mirror, also at an angle of 45 degrees; the face of the person looking in at a. One of the most startling effects that can be displayed to persons ignorant of the common laws of the reflection of light, is called the "magic mirror," and is described by Sir Walter Scott in his graphic story of that name.

Figure 23
The apparatus for the purpose must be well planned and fixed in a proper room for that purpose, and if carefully conducted, may surprise even the learned. (Fig. 23)

Put it in a stone jar or pot, and keep it in a dry and cool place. To Operate a Toy Jumping-Jack, by supporting the jumping-Jack on a bracket, and connecting its string to the hub of the windmill. How the Jumping-Jack is Supported. Cover the jar when perfectly cold. The Malay tailless kite is probably the most practical kind ever invented. A long and somewhat narrow room should be hung with black cloth, and at one end may be placed a large mirror, so arranged that it will turn on hinges like a door.

Figure 24
The magician's circle may be placed at the other end of the chamber in which the spectators must be rigidly confined, and there is very little doubt that the arrangement about to be described was formerly used by clever astrologers who pretended to look into the future, and to hold communication with the supernatural powers. (Fig. 24) A convenient kitchen table made of poplar and covered with zinc with an opening in the center through which the parings of vegetables or the scraping of dishes may be put into a pail sitting on the lower shelf. This saves soiling the floor and many steps while preparing the vegetables for cooking. It should be remembered that the pail underneath must be removed and the contents emptied into the garbage barrel after each using.

10. The Rough Edges

How to Make Badges, etc. C, make these chisels. You can make it so by scraping it with a piece of glass. Only a knowledge of the food value of different dishes, combined with a good sense of taste and fitness, and some idea of the comparative wholesomeness of different methods of cooking, can produce a meal that is scientifically correct as well as pleasing to the palate.

Let this exposure be about twice the length of the first, and the desired result is obtained.

Figure 25
When you have it cut out, file off the rough edges. (Fig. 25) Make two wheels out of tin. On wheel A fasten two pieces of wood, C, to cross in the center, and place a bell on the four ends, as shown.

The smaller wheel, B, must be separated from the other with a round piece of wood or an old spool. The blades on the wheels should be bent opposite on one wheel from the others so as to make the wheels turn in different directions. How to Sink the Letters. Can be had of Hammacher, Schlemmer and Co., Fourth Ave. Mark the lines on the badge on which the letters are to be sunk with a very soft lead pencil, or, better, wax the surface all over by tapping it with your finger on which you have rubbed some white wax and then mark the lines with a sharp pointed piece of bone. Otherwise you will have trouble in getting the lines out. When turning, the buttons will strike the bells and make them ring constantly.

11. The Coming Winter

Figure 26
The French name for the above is riz au lait. (Fig. 26) With consommé it is richer, and with water much inferior, than with broth. Okra or gumbo is little known here; yet it is good in pickles, used like cucumbers.

When a rump-piece is used to make broth, it is better to bone it first, and take it from the soup-kettle after three or four hours; it is served as a relevé, or prepared as cold beef. The broth is finished as directed; the bones and vegetables being kept on the fire longer than the meat. Chlorophyll gives to leaves and young bark their green color. It is much used for soup in the Southern States and in the West Indies. The roots of the trees are constantly drinking plant food in the daytime of spring and early summer.

Figure 27
When green and tender, cut it very fine, cook it in broth, add a few tomatoes or tomato-sauce, according to taste; season with salt, pepper, and a pinch of sugar. (Fig. 27)

When the tomatoes are cooked, serve warm. From midsummer until the end of summer the amount of moisture taken in is very small so that the flow of sap almost ceases. The leaves, however, are full of sap which, not being further thinned by the upward flow, becomes thickened thru the addition of carbonic acid gas and the loss of oxygen. Roast or bake till turning yellow, a chicken over two years old. Toward the end of summer this thickened sap sinks to the under side of the leaf and gradually flows out of the leaf and down thru the bast of the branch and trunk, where another process of digestion takes place.

Figure 28
If dry, make a potage like that of tapioca, to which you add a little tomato-sauce and pepper. (Fig. 28)

Put it in a soup-kettle with three pints of water, and set it on a rather slow fire; skim off the scum, add a middling-sized onion, a leek, a few stalks of chervil if handy, a middling-sized head of lettuce, and salt; simmer about three hours. Take out the chicken and vegetables, skim off the fat, strain, and use. This broth is excellent for a weak stomach, and is easy of digestion. The chicken is served in salad. One part of this descending sap which has been partly digested in the leaves and partly in the living tissues of root, trunk and branch, spreads over the wood formed in the spring and forms the summer wood.

More or less onions may be used, according to taste.

Figure 29
Chop the ox-tail in pieces about one inch long, set them on the fire, with about one ounce of butter, stir till it turns rather brown, and turn the fat off. (Fig. 29) The second part is changed to bark. What is not used at once is stored until needed.

The leaves upon losing their sap change color, wither and drop off. Procure a rather old turkey and roast or bake it till about one-third done; put it in a soup-kettle with about a pint of water to a pound of meat, and set it on a rather slow fire. By the end of autumn the downward flow of changed sap from the leaves is completed and the tree has prepared itself for the coming winter. As soon as the scum comes on the surface, skim it off carefully; then add two onions, two leeks, two or three heads of lettuce, a small handful of chervil if handy, and salt. Then add broth to taste, boil slowly till the pieces of tail are well done; add salt, pepper, and when handy add also three or four tomatoes whole; boil gently about fifteen minutes longer, turn into the soup-dish, and serve meat and all. Simmer about five hours. Use the broth as chicken-broth above, and serve the turkey in salad.

12. The Chocolate in Pieces

It is better to limit the attendance at such funerals to as few as possible. Every person should be vaccinated in infancy, again after puberty, and again within four days after exposure to small-pox.

Figure 30
Special care should be paid to isolation. (Fig. 30)

Break the chocolate in pieces, put it in a tin saucepan with a tablespoonful of water to an ounce of chocolate, and set it on a rather slow fire. There are many methods of doing this chemically or by the application of heat, but we cannot by any mechanical process of concentration, compression, or division, persuade a substance to crystallize, unless perhaps we except that remarkable change in wrought or fibrous iron into crystalline or brittle iron, by constant vibration, as in the axles of a carriage, or by attaching a piece of fibrous iron to a tilt hammer. If we powder some alum crystals they will not again assume their crystalline form; if brought in contact there is no freedom of motion. The jug must be either a china or a metal one. If you wish to use the vanish of the glass of water in the way I have suggested—in conjunction with the rice bowls—it will be necessary to have an opera hat with a hinged flap in the centre.

Figure 31
Stir now and then till thoroughly melted. (Fig. 31) While the chocolate is melting, set the quantity of milk desired in another tin saucepan on the fire, and as soon as it rises and when the chocolate is melted, as directed above, turn the milk into the chocolate, little by little, beating well at the same time with an egg-beater. The matter coughed up should be received on rags and immediately burned. The body of the patient should be anointed twice a day with sweet-oil, lard, or vaseline, containing ten grains of carbolic acid or thymol to the ounce.

This should be continued until all bran-like scaling of the skin is at an end. Particular attention should be paid to the disinfection of such discharges by the zinc or copperas solution. Excreta should be immediately disinfected.

Figure 32
When there is small-pox, diphtheria, scarlet fever, measles, or typhus fever in a house, immediate attendants on the sick should not leave the house without a change of outside clothing. (Fig. 32) General Precautions for those entering a Sick-Room. Keep beating and boiling after being mixed, for three or four minutes; take off and serve. Cut a piece of stiff cardboard of the size of the crown of the hat. To the centre of this fasten, by means of strips of black linen, a small, semicircular piece of cardboard, which will thus be hinged to the other piece.

13. The Movable Section

The dimensions are: width, twenty-four inches; depth, twelve inches; and height, twenty-two inches. The barn contains five stalls on the ground floor and a hay-loft above. To build the stable according to the drawings, a box ten by twelve by twenty-four inches should be procured for.

If you have a box of different proportions it will be a simple matter to make such alterations in the details as it will require. The Roof is made in two sections, each fifteen by eighteen inches, and is fastened to the top of the box so that the peak is twenty-two inches above the bottom. Ask someone to put water into a glass when the glass is held upside down.

Figure 33
Strips should be nailed to the roof just inside of the movable section to prevent the latter from setting in too far, and a spring catch fastened to C and D as shown, to hold the movable section in place. (Fig. 33) The Stall Partitions, four of which should be cut out and fastened to the floor of the stable four inches apart, or so they will divide the inside width into five equal stalls. In one, the bevel side of the chisel is down and the cutting edge held at right angles to the grain. In the other, the flat side of the chisel is down and the cutting edge is worked obliquely to the grain.

14. The Back Piece

It is like placing some globules of mercury on a plate. They have no power to create motion; their inertia keeps them separated by certain distances, and they do not coalesce; but incline the plate, give them motion, and bring them in contact, they soon unite and form one globule. The particles of alum are not in close contact, and they have no freedom of motion unless they are dissolved in water, when they become invisible; the water by its chemical power destroys the mechanical aggregation of the solid alum far beyond any operation of levigation. The solid alum has become liquid, like water; the particles are now free to move without let or hindrance from friction.

The alum must indeed be reduced to minute particles, as they are alike invisible to the eye whether assisted by the microscope or not. No repose will cause the alum to separate; the solvent power of the water opposes gravitation; every part of the solution is equally impregnated with alum, and the particles are diffused at equal distances through the water; the heavy alum is actually drawn up against gravity by the water. Make shelf B three by one inches and place it at line 22.

Figure 34
The lower portion of the side-board is inclosed with two doors two inches high by an inch and one-half wide. (Fig. 34)

Stick the pins near the edge of the doors and see that they are straight, so the doors will open easily. A small mirror attached to the back between shelves C and D will complete this piece of furniture. A Mirror in a frame should be made for the living-room of the doll-house. Fasten the sides to the edges of the back piece, and the shelf between the sides about three-quarters of an inch above the base. Lay the fish on a dish; have a piquante sauce ready, turn it over it, and serve with steamed potatoes all around the dish. The potatoes may also be served separately.

Figure 35
Prepare as directed, and when cold, serve with a vinaigrette. (Fig. 35) Prepare the cod as directed, then dip it in lukewarm butter, roll it in grated cheese, lay it in a baking-pan, dust slightly with bread-crumbs; bake, and serve warm. The back is made the same, with the omission of the square opening cut in the front frame for the clock-face.

15. The Greatest Workman

If you are skilful with your pocket knife you can cut out a representation of the animal from a lump of wood, and paint it to make it more realistic. If, however, you have not the requisite skill, you can still construct the toy by using a walnut shell in place of the carved model. In either case the actual mechanism for "jumping" is the same.

You want a good-sized shell, or rather half-shell, some very strong thin twine, and a match. The discovery which led to the results brought before us to-night was of this character. I rejoice, ladies and gentlemen, in the opportunity here afforded me of offering my tribute to the greatest workman.

Figure 36
It could sustain a weight of 430 pounds, and was purchased by the Royal Institution for Dr. Faraday. (Fig. 36) It was first observed by Father Bancalari, of Genoa, that when the flame of a candle is placed between the poles of a magnet it is strongly repelled.

The flames of combustible gases from various sources are differently affected, both by the nature of the combustible and by the nearness of the poles. Effect of magnetism on candle-flame between the poles of the magnet. It was these experiments that led to the important discovery of the paramagnetic property of oxygen, and proved in a decided manner that gaseous bodies when heated became more highly diamagnetic.

Keep your finger on the match to prevent it flying back, and carefully turn the shell upside down on the table, holding it all the time.

Figure 37
You don't need to buy all of them at once, however, but just get a tool at a time as you must have it until your kit is complete. (Fig. 37) Some Hints on Using the Tools. Side cutting pliers are useful to hold and bend bits of metal with and to cut off pieces of wire as well.

16. The Little Finger

The audience are led to believe that the name of the card is to be written magically on the slates, but when the person holding them takes off the paper he finds to his surprise that the card is between the slates and, as a matter of fact, the card is the identical card that was chosen in the first place. This "move" is quite a natural one, and is very easy; if the conjurer will try it in front of a mirror he will see that it is also deceptive. The conjurer, using both hands, now rolls the paper round the tube and finally holds the tube near the lower end in his left hand; it is as well to extend the little finger under the paper tube to prevent the "fake" from falling. The water should be poured into the paper tube in a thin stream.

Figure 38
The quantity of water required must be ascertained by experiment. (Fig. 38)

The conjurer then makes a few mystic passes below and over the tube with his right hand, puts two fingers into the lower end of the tube and starts the ribbons; they will fall at once into a heap on the table. I should mention that before loading the "fake" with the coil the outer ribbon on the coil should be torn; if it is not the end of the falling ribbons will be a ring of paper, which will look suspicious. The centre end of the coil should also be pulled out half an inch, so that the conjurer does not have to fumble to get hold of it. Lay it in a small cooker-pail or pan. Make two cupfuls of Brown Sauce, or enough to cover the roll.

Boil the roll for two minutes and set the pail in a larger pail of boiling water. Put it for five or six hours into a cooker. Care must then be taken that they are hot, not merely warm. It not only provides a place for the bag to hang, but it also has a shelf on which the pan sits to catch the drippings from the bag. This effect is brought about by means of a few subtle—but quite easy—"moves" and the use of one little "fake." The jug of water is standing on the conjurer's table; placed just behind it is the large silk handkerchief folded in four, and behind the handkerchief is a piece of transparent celluloid of the exact size of the cards which are to be used; beside the piece of celluloid is the pack of cards.

17. A Perpendicular Position

Figure 39
With a soft cloth apply as thin a coating of wax as can be and yet cover the wood. (Fig. 39) Wax is in paste form. Allow this to stand five or ten minutes, then rub briskly with a soft dry cloth to polish.

If you are careful you can put a dozen sixpences into the glass without causing the water to run over the brim. For this little experiment you want a nice large rose bowl, full of water, and seven corks. The trick is to put the corks into the water and to cause them to float in a perpendicular position.

This is how you do it. Grasp all the corks in one hand, and hold them under the water until they are thoroughly soaked. Then hold them in the position you wish them to assume and let them go; they will remain close together and in an upright position.

18. A Little Calamine

Figure 40
If by mistake you plane out your line, take the piece to your instructor at once, unless you have been otherwise directed, that he may tell you what to do. 31. (Fig. 40) Calcium Ca =  20 8. Place a portion of the composition in a small tin pan, having a polished reflector fitted to one side, and set light to it; when a splendid green illumination will be the result. By adding a little calamine, it will burn more slowly. Weigh five ounces of dry nitrate of strontia, one ounce and a half of finely powdered sulphur, five drams of chlorate of potash, and four drams of sulphuret of antimony. Powder the chlorate of potash and the sulphuret of antimony separately in a mortar, and mix them on paper; after which add them to the other ingredients, previously powdered and mixed.

No other kind of mixture than rubbing together on paper is required. For use, mix with a portion of the powder a small quantity of spirits of wine, in a tin pan resembling a cheese toaster, light the mixture, and it will shed a rich crimson hue. It not only provides a place for the bag to hang, but it also has a shelf on which the pan sits to catch the drippings from the bag. When the fire burns dim and badly, a very small quantity of finely powdered charcoal or lamp black will revive it. The legs are adjustable; hence it is easily taken apart and kept in a small space.

Figure 41
This makes the strainer especially convenient to the Canning Club Agent as she goes her daily rounds teaching the housekeepers the art of jelly-making. (Fig. 41) It can be easily made at home and at a little cost. 1 piece of white tape to make loops on bag.

A solid piece of wood with a hole in the center may be used in making this shelf. Dissolve chloride of lithium in spirit of wine, and when lighted, it will burn with a purplish flame. Put into a glass tumbler fifteen grains of finely granulated zinc, and six grains of phosphorus, cut into very small pieces beneath water.

Mix in another glass, gradually, a dram of sulphuric acid, with two drams of water.

Figure 42
Remove both glasses into a dark room, and there pour the diluted acid over the zinc and phosphorus in the glass; in a short time beautiful jets of bluish flame will dart from all parts of the surface of the mixture; it will become quite luminous, and beautiful luminous smoke will rise in a column from the glass, thus representing a fountain of fire. (Fig. 42) Sandpaper but do not stain.

Take a piece of flannel of the desired size and make the jelly bag in the shape of a triangle. Sew a loop of tape at each corner to hang the bag over the posts. It is made of poplar at a minimum cost.

19. A Reservoir Beneath

Put into a tea cup a little spirit of wine, set it on fire, and invert a large bell-glass over it. In a short time, a thick watery vapor will be seen upon the inside of the bell, which may be collected by a dry sponge. Provide a tall glass jar, filled with cold water, and place in it an air thermometer, which will nearly reach the surface; upon the surface place a small copper basin, into which put a little live charcoal: the surface of the water will soon be made to boil, while the thermometer will show that the water beneath is scarcely warmer than it was at first. Fill a large glass tube with water, and throw into it a few particles of bruised amber, then hold the tube by a handle for the purpose, upright in the flame of a lamp, and as the water becomes warm, it will be seen that currents, carrying with them the pieces of amber, will begin to ascend in the center, and to descend towards the circumference of the tube.

Figure 43
These currents will soon become rapid in their motions, and continue till the water boils. (Fig. 43) Pour into a glass tube, about ten inches long, and one inch in diameter, a little water colored with pink or other dye; then fill it up gradually and carefully with colorless water, so as not to mix them; apply heat at the bottom of the tube, and the colored water will ascend and be diffused throughout the whole. Remove the paper from the boxes as described on page 175.

How the Clockwork Motor is Fastened to the Cigar-box Cover. The circulation of warm water may be very pleasingly shown, by heating water in a tube similar to the foregoing; the water having diffused in it some particles of any light substance not soluble in water. All fluids, except water, diminish in bulk till they freeze. In this case, the expansion below forty degrees, and above forty degrees, seem to be equal; so that the water will be of the same bulk at thirty-two degrees as at forty-eight degrees, that is, at eight degrees above or below forty degrees.

This pretty toy may be purchased at any optician's for two or three shillings. Fasten the clockwork motor for.

Figure 44
The hole in the spool will be too large for the pivot and must be filled up with sealing-wax. (Fig. 44)

To do this, hold a piece of sealing-wax above the spool and melt it with a lighted match, allowing it to drip into the hole until the latter is about half full, then press the wax down with the end of a match until it is compact, smooth it off on the bottom of the spool, and make a dent in it with a pencil to indicate the exact center of the hole. Heat the end of the pivot with a lighted match, and press it into the dent in the wax, being careful in doing so to get the spool straight upon the pivot. Plan of Top of Standard for Merry-go-round. It consists of a cup, in which is placed a standing human figure, concealing a syphon, or bent tube with one end longer than the other. This rises in one leg of the figure to reach the chin, and descends through the other leg, through the bottom of the cup to a reservoir beneath. Pattern for Tent of Merry-go-round.

The Tent ready to be Fastened upon a Tent-pole. Cut out the tent along the outer circle, and from it cut a triangular piece about the size of that included between lines KL and ML in the diagram. Full-size Pattern for the Horses of the Merry-go-round.

Figure 45
Take a piece of tracing-paper or any thin transparent paper, and place it over the pattern and make an exact copy; then rub a soft lead-pencil over the other side of the paper, turn the paper over with the blackened side down, and transfer the drawing six times upon a piece of lightweight cardboard. (Fig. 45) Draw this out upon a piece of cardboard, cut it out and fold along the dotted lines, then turn in the flaps and glue them to the dashboard and to the back.

20. An Accidental Occurrence

Wrap a towel round the bottom of the bottle, and strike it evenly and repeatedly, but not too hard, against a wall, post, or tree, and after some time the cork will be driven out of the bottle. The glass joint of the fishing-rod, from which the last joint, carrying the paper tassel, b., projects. Produce some butter, eggs, and other ingredients for making an omelet, together with a frying-pan, in a room where there is a fire, and offer to bet a wager, that the cleverest cook will not be able to make an omelet with them. Flathead screws are used for ordinary work. Roundhead screws are used because they are more ornamental.

Either kind may be made of steel or brass.

Figure 46
The wager is won by having previously caused the eggs to be boiled very hard. (Fig. 46) Steel screws are often blued by treating them with heat or an acid.

In the lower part, a hole should be bored just large enough to take in the core of the screw snugly. This idea, however, has been proved to be a fallacy, for reasons that will be presently explained. The figure on p. 216 displays two of these engines, one of which represents the rotation of electro-magnets within four fixed steel magnets., and the other the rotation of steel magnets by the fixed electro-magnets.. By an accidental occurrence, it has recently been discovered that a piece of rock-crystal, or quartz, cut in a peculiar form, produces, upon an inclined plane, and without any apparent impetus, an extraordinary rotary motion, which maybe kept up for an indefinite period of time.

21. A Burning Brand

A burning brand is useful to mark the handles of tools, boxes or anything made of wood by burning a name or a design into them. Use a brad awl to make openings for the screws. How to Make a Burning Brand.

Figure 47
Mix up some plaster of Paris, fill the box with it and let it set. (Fig. 47)

To insure the hinges' pulling tight against the side of the gain make the holes just a little nearer the back side of the screw hole of the hinge. Of course, if you are performing with a borrowed pack of cards you will have to seize your opportunity to do this when the attention of the audience is directed to another trick, or you can do it before your performance begins. Now, pick up the two top cards together and hold them in the right hand in the way described, with the face of the lower card towards the audience.

You will understand, of course, that to the audience these two cards must appear to be one card. When you take the glass with your left hand and try to balance it on the top of the card the back of the left hand is towards the audience and the hand nearly covers the whole of the card. This gives you the chance of bending back the top card to make a firm resting-place for the glass.

22. A Modification of Electricity

Magnetism is a modification of electricity: at least, there is sufficient evidence that these causes are intimately connected, if not identical; but philosophers are as yet ignorant of its nature. The property designated by the word magnetism is found in an iron ore of a certain composition, and of a dark gray color and peculiar luster. This ore alone is the local habitation of magnetism, whilst all others are subject to its influence, or to be attracted by it.

Figure 48
With the right place the end of the rule against the head. (Fig. 48)

How to Make a Venetian Plate Holder. The plate holder is of more simple construction than the egg boiler but as you have emerged from the kitchen into the dining room you will have to do a very fine job. Still, so little difference is there between the magnetic ore, or loadstone, and those which do not possess the property, that only practiced mineralogists can discern one from the other; and an experienced eye may see two ores join each other by the principle of attraction, without knowing in which resides the power, until another ore, non-magnetic, is brought within the sphere of attraction, when it will adhere only to that which contains the principle. This singular property of the loadstone is imparted to other metallic substances, by rubbing and keeping them close together for some length of time: if a metal be of a hard texture like steel, it retains the magnetic principle permanently; but if soft, it loses the power as soon as separated from the magnet. The metals thus prepared, acquire the same directive and attractive power as the loadstone or natural magnet, and are employed for purposes of the utmost importance.

After the screw has been tightened, apply the rule again to make sure of the correctness of the setting. To gage the line, take the tool in the right hand, three fingers grasping the beam, first encircling the head for narrow work, and the thumb back, or nearly back, of the spur. The head should be kept against one or the other of the face sides.

Begin at the end of the piece which is towards you, hold the block firmly against the piece, roll the beam forward until the spur barely touches the surface and make a very light line. Draw the design on paper full size and this will depend on the diameter of the plate it is to hold.

Figure 49
We proceed to give the youthful amateur the opportunity of exemplifying the principles of electricity, galvanism, and magnetism, by several simple experiments. (Fig. 49) Lay a watch down upon a table, and on its face balance a tobacco-pipe very carefully. Next take a wine-glass, rub it quickly with a silk handkerchief, and hold it for half a minute before the fire; then apply it near to the end of the pipe, and the latter, attracted by the electricity evolved by the friction and warmth in the former, will immediately follow it; and by carrying the glass around, always in front of the pipe, the latter will continue its rotatory motion; the watch-glass being the center or pivot on which it acts.

Warm a glass tube, rub it with a warm flannel, and then bring a downy feather near it. On the first moment of contact, the feather will adhere to the glass, but soon after will fly rapidly from it, and you may drive it about the room by holding the glass between it and the surrounding objects; should it, however, come in contact with anything not under the influence of electricity, it will instantly fly back to the glass. A stick of sealing-wax rubbed against a warm piece of flannel or cloth, acquires the property of attracting light substances, such as small pieces of paper, lint, &c., if instantly applied at the distance of about an inch.

Figure 50
A very hot solution will be of a beautiful green color; a cold one, a deep purple. (Fig. 50) It will be found convenient to hold the piece against the bench stop. Make a colorless solution of sulphate of copper; add to it a little ammonia, equally colorless, and the mixture will be of an intense blue color; add to it a little sulphuric acid, and the blue color will disappear; pour in a little solution of caustic ammonia, and the blue color will be restored.

23. The Right Consistency

From these it will be seen that the different views are arranged with reference to the front view, so that the part of a side view which is nearest the front view represents a part of the front of the object, that the corresponding horizontal measurements of top and front views are alike, that the corresponding vertical measurements of front and side views are alike, that the corresponding vertical measurements of the top view and horizontal measurements of a side view are alike. They are placed in spaces that the proportion of the parts may the more readily be seen. They may be narrowed or widened by changing the width of the spaces, and shortened or lengthened by changing the height of the spacer. With the point A as a center, using the radius of the circle, cut the circle at 1 and 2. With B as a center, and the same radius, cut the circle at 3 and 4.

Figure 51
Connect A-1, A-2, 2-3, etc. (Fig. 51) Connecting every other point, as A-3, 2-B, etc., makes a six-pointed star. Connect these points as shown. An easy way to construct such a curve is to place two thumb tacks at the focii, attach the ends of a string to them. With a pencil moving freely in the string but holding it taut draw the curve.

If the snow is of the right consistency, there will be no trouble in packing and working with it. The 2 by 4-in.

Figure 52
How to Make a Toy Steam Engine. (Fig. 52) The loose wing has a large hole drilled in it to receive the handle of the broom. The manner of holding the broom is plainly shown in the sketch. Making Proofs before the Negative Dries.

24. An Enormous Battery

Turtle-steaks are prepared like beef-steaks. An amalgamated zinc plate is placed outside the porous cell, and a platinum plate inside the latter. The arrangement is put in action by pouring dilute sulphuric acid round the zinc and strong nitric acid inside the porous cell.

A set of Grove's nitric acid battery, as manufactured by Messrs. Finally, to remove all traces of grease, dip the articles to be plated in a boiling potash solution made by dissolving 4 oz. American ash in 1-1/2 pt. Do not touch the work with the hands again.

Figure 53
Elliott, Brothers, of 30, Strand, with fifty pairs of sheet platinum, five inches by two inches and a quarter, and double amalgamated zinc plates, flat porous cells, and separate earthenware troughs for each pair, and stout mahogany stand, arranged in ten series of five pairs, will evolve with a proper voltameter one hundred cubic inches of the mixed gases per minute from the decomposition of water, and will exhibit a most brilliant electric light, when arranged as a single series of fifty pairs of plates. (Fig. 53) Even thirty pairs exhibit the most splendid effects, whilst forty may be regarded as the happy medium, giving all the results that can be desired. The author had the pleasure of witnessing at King's College some of the effects of an enormous battery, prepared by the late Professor Daniell, and consisting of seventy of his cells. Amalgamated zinc plate in flat earthenware trough.

25. The Gasoline Explodes

One soon learns by the sense of feeling when the lost motion has been taken up. Moving this lever to the right or the left serves to straighten the plane-iron, so that the cutting edge shall extend evenly through the mouth and not take a shaving thicker at one side of the iron than at the other. When the machine is at rest, you can stab a small hole in the fuel line and plug the hole with wax.

As the engine runs and the exhaust tube becomes hot, the wax will be melted; fuel will drip onto the exhaust and a blaze will start. If you have access to a room where gasoline is stored, remember that gas vapor accumulating in a closed room will explode after a time if you leave a candle burning in the room.

Figure 54
A good deal of evaporation, however, must occur from the gasoline tins into the air of the room. (Fig. 54) If removal of the tops of the tins does not expose enough gasoline to the air to ensure copious evaporation, you can open lightly constructed tins further with a knife, ice pick or sharpened nail file. Or puncture a tiny hole in the tank which will permit gasoline to leak out on the floor.

This will greatly increase the rate of evaporation. Before you light your candle, be sure that windows are closed and the room is as air-tight as you can make it. If you can see that windows in a neighboring room are opened wide, you have a chance of setting a large fire which will not only destroy the gasoline but anything else nearby; when the gasoline explodes, the doors of the storage room will be blown open, a draft to the neighboring windows will be created which will whip up a fine conflagration. They cannot be sabotaged easily or without risk of injury by unskilled persons who may otherwise have good opportunities for destruction. Don’t order new working materials until your current stocks have been virtually exhausted, so that the slightest delay in filling your order will mean a shutdown. If the plane-iron projects, observe whether it projects evenly or not.

26. The Drawing Vertically

As the coin commences to die down the axis about which it spins gradually begins to shift from the diameter to the center of the coin until finally at the finish the coin is spinning directly about its center.

Figure 55
This motion is the same as the processional motion of the earth. (Fig. 55) A mechanic, however, usually planes an edge until it fits the frame, testing by holding the door against the frame as near to its position as its size will allow. Plane the bottom or top edge of the door until it fits the frame properly when the first planed edge is in position.

When approaching the line, in planing, place the door against the frame often enough to see where the allowances must be made for irregularities in the frame. The coins should be laid in a row on the table and whatever note you want to ring out pick up the coin which will produce it, hold it as shown at B, and give it a little spin. You can soon learn to spin them with either hand and keep two or more of them going at the same time, when you will have that agreeable combination of tones that is known in music as harmony. The musical coins are easy to learn to play and at a little distance off they look like real coins and are a very pleasing novelty.

Figure 56
Be that as it may, get eight tomato cans, soak the labels off carefully and keep them. (Fig. 56)

The length of the frame may next be measured on each side and these dimensions transferred to the door. Great care should be taken not to let any part of the cord be seen, as this would, of course, discover the trick. This is one of the most surprising feats of legerdemain, and its chief beauty consists in its extreme simplicity. Determine the size and spacings of the views so that the parts of the drawings may be properly placed. With light full lines block out the different views.

Blocking-out lines are made of indefinite length and the proper distances marked off on them after they are drawn. Holding the rule or scale upon the drawing vertically, mark off the vertical spaces. Draw light lines thru these points.

Figure 57
Upon one of these horizontal lines lay off the horizontal spaces. (Fig. 57) Draw light vertical lines thru these points. Gas jar divided into five equal parts.

Section of pneumatic trough, to show the decantation of gas from one vessel to another. The writer has frequently astonished a whole room full of company by the performance of this trick. Put on the dimensions. Put on the lettering. In a place so out-of-the-way; But when my finger moved shall be, Like a good fellow come to me." 24.

27. The Required Distance

Set the gage equal to the required distance from the face edge to the nearer edge of the mortise and mark between the lines. The disk should whirl very steadily when working right, and the knack of making the string twist so the disk will do so is attained with a little practice. His dancing-stage is a shingle or piece of stiff cardboard held on the edge of a chair beneath your knee.

Figure 58
He is held by means of the string attached to his head, so that his feet rest lightly upon the stage, and he is made to jig by tapping the outer end of the stage with the free hand. (Fig. 58) The Buzz-saw whizzes when you twist the Cord. The Eccentric Clog-dancer is a Circus in himself.

Pull the string and Jack jumps comically. The more grotesque the dancer's appearance is, the more amusing his dancing will be, so the cruder you make him the better. The center part of a thread-spool forms the head, and a spool-end and the rounded end of a broom-handle form the hat. These three pieces are nailed together. The body is a piece of a broom-handle, and a spool-end nailed to it forms the shoulders.

Figure 59
The only kind of a flux to solder zinc with is a solution made of 10 per cent. (Fig. 59)

For lead, pewter and any alloy with lead in it use tallow, Gallipoli oil or Venice turpentine. Resin can be used successfully for all metals provided they are scraped bright and clean before they are soldered. For soldering tinware a fine tinner's solder made of 1 part of tin and 1 part of lead flows best. Paint the clog-dancer's body, arms, and legs white, his head, hands, and feet black, and mark his eyes, nose, and mouth upon his face in white.

These are cut out of cigar-box wood.

Figure 60
The water and empty space beneath the pan saves the potatoes. (Fig. 60) This also makes the work of cleaning pots easier as no adhering parts of potatoes are left to be scoured out. A clothes-drying rack that has many good features can be made as shown in the illustration.

28. The Remaining Ingredients

Made the same as ox-cheek soup. Put two ounces of butter in a saucepan, set it on the fire, and as soon as melted, put a good handful of sorrel in, stir for about one minute; then add a pint and a half of water, salt; boil two or three minutes; add again a little butter, give one boil and turn into the soup-dish in which you have croutons. As soon as taken from the fire, two, three, or four yolks of eggs, beaten with a tablespoonful of water, may be added. Broth may be used instead of water.

Put one quart of oysters with their liquor in a saucepan, with one pint of cold water, and set it on a good fire. Put them into a small cooker-pail or pan. Take from the fire at the first boil, and skim off the scum.

Figure 61
Take the oysters from the pan with a skimmer and put them in the soup-dish. (Fig. 61) Prepare the vegetables as directed for making soup stock, and brown them in the butter. Bring all to a boil together, reserving the chicken stock.

By keeping the soup-dish in a warm but not hot place, the oysters will not harden. Add to the juice in the saucepan a gill of white wine; give one boil, and take from the fire. Mix two ounces of butter with two tablespoonfuls of flour in a bowl; turn the juice and wine into the bowl also, and mix the whole well; put the mixture back in the saucepan, and set it on the fire, adding about half a dozen mushrooms, two or three stalks of parsley, and pepper to taste.

Figure 62
Boil for ten minutes, and put it into the cooker for from nine to twelve hours. Strain this stock through a wire strainer, add the chicken stock, and, if it is not seasoned sufficiently, add what seasoning it needs. (Fig. 62) Make Brown Sauce, using the remaining ingredients. Pour the sauce over the cutlets and, when boiling, stand the pail in a large cooker-pail of boiling water.

Put it into a cooker for from two to four hours, depending upon the age and toughness of the veal. Reheat them before serving. Cool it as rapidly as possible, and when cold, clear it according to the directions on page 59. Serves six or eight persons. Wipe the cutlets with a wet cloth, trim off any tough membranes, and cut them into pieces suitable for serving.

Figure 63
Boil two minutes, turn over the oysters through a strainer, and serve. (Fig. 63)

It is served, usually, with custard cut into fancy shapes; or with noodles, macaroni, or other Italian pastes, which are first cooked as directed on page 143; or with delicate vegetables, such as peas or string beans, or other vegetables cut into fancy shapes; or with cooked chicken, cut in dice, and green peas. A poached egg is sometimes served in each plate of soup. Brown them in a very hot frying-pan with butter or rendered fat, being careful not to let them scorch. Sprinkle them well with salt and pepper and put them into a small cooker-pail or pan. Pour a little boiling water into the frying-pan and, when all the brown juice which has hardened on the pan has been dissolved, pour this over the cutlets.

29. A Double Knot

For this two wheels, each about 2-1/2 in. The body of the machine is easier to make than describe. A small match box is taken and along one long edge of the top a piece of stale is glued, projecting 1/4 in.

Figure 64
This stale is the axle. (Fig. 64) This feat appears to be very difficult, but it is not; the weight of the tangerine helps you. Two full-length stales are then glued so that they meet at the end furthest from the axle. This is a very amusing deception. When you can do the trick every time with one glass you can try it with two glasses—using a larger piece of cardboard, of course—and then three glasses, and, finally, four. It is not so easy then.

You ask any one for a handkerchief, and tie the ends firmly together in a double knot, allowing him to feel it, or pull the ends as tight as he pleases. This feat is often performed on the stage, but eggs—or, rather, imitation eggs—are used in place of the tangerines, and the trick in that form is difficult because the eggs are light. You then throw the center of the handkerchief over the knot, ask the person to hold it tight between his finger and thumb. You ask him if the knot is still there, to which he will answer in the affirmative.

Figure 65
You then take hold of any part of the handkerchief, and direct the holder to drop the handkerchief at the word "three." You count, "one, two, three," at which word he looses his hold of the handkerchief, and there is no vestige left of the knot. (Fig. 65)

The method of managing this trick is as follows: Take the handkerchief and tie the ends in a simple knot, keeping one end tight, and the other end loose. We will call the tight end A., and the loose one B.. Take three nuts in the left hand, show them, and take out one of them between your right finger and thumb, and another between the first and third finger. This latter is not seen by the company. Don't follow up your stroke when you are hitting the cardboard away. Just give it a sharp knock and bring the hand to a standstill with a jerk.

30. A Double Thread

Figure 66
Used like soft pine, but owing to its great durability preferred for shingles, etc. (Fig. 66) Small sizes used for posts, ties, etc. Use support made of iron and fastened to the seat with screws to give strength to the mortises formed at the arms and front posts.

The chains to suspend the swing are fastened to holes made in these iron supports. Make the back of the swing first, then the ends and front, nailing the seat slats in after the glue has fastened the mortises securely together. A cheap and efficient article for the housewife is a mop made of old stockings and the handle of an old, discarded broom.

Figure 67
This mop may be used successfully for polished and painted floors as well as for unpolished floors. (Fig. 67)

It is made by cutting the straw off of a broom which has worn out. Order eight or ten pounds of rump of beef corned for four days. Put it into a large cooker-pail and fill the pail with cold water.

When it boils, allow it to simmer for thirty or forty minutes, then put it into a hay-box for ten or twelve hours. Reheat it before serving it. To prepare for the trick, turn one of the bags upside down and push the bottom of it inwards. If ordinary corned beef is used it will be more delicate if, when it is allowed to come to a boil, the water is changed and fresh boiling water added. It may then be cooked as directed above for that specially corned.

This is cut even with the wires which hold the straw on the handle. Cover this part of the broom with an old stocking, which is tacked to the handle securely by sewing it around two or three times with a double thread. Legs of old stockings are cut twelve inches long with these strips cut leaving a band two inches wide to sew to the covering of the broom.

Figure 68
Then place two or three of the blocks of sand of the right colour in the cavity at the bottom of the bag. (Fig. 68)

31. The Kidneys in Slices

Put it into a bright, ungreased tin, and bake it fifty minutes or an hour in an oven heated not quite so hot as for butter cakes. The same, with Champagne. Cut the kidneys in slices, each in ten or twelve pieces. Put in a stewpan a piece of butter the size of two walnuts, and set it on the fire; when melted, add a teaspoonful of chopped parsley, same of mushrooms, a pinch of grated nutmeg, salt, pepper, and the kidneys; keep tossing till they become stiff, then sprinkle on them a saltspoonful of flour, stirring with a wooden spoon the while; add also a wine-glass of Champagne, or of good white wine; subdue the fire, and let simmer till cooked; take from the fire, add about one ounce of fresh butter, and the juice of half a lemon, and serve. This is a very delicate dish.

Put in a stewpan two ounces of bacon cut in slices, with a bay-leaf, two sprigs of parsley, one of thyme, one clove, six small onions, one carrot cut in four pieces, then about six tails; cover the whole with broth and white wine, half of each; add salt and pepper. The paper should turn light brown when tested as explained on page 225.

Figure 69
Place the pan in a moderately heated oven; it will take about four hours to cook them. (Fig. 69)

After that time, take the tails from the pan, and put them in a warm place, then strain the sauce in which they have cooked, skim off the fat if too much of it, put the sauce back in the pan, and set on the fire; let it reduce till rather thick, place the tails on a purée, turn the sauce on them, and serve. SHEEP'S TONGUES. Soak the tongues in cold water for two hours in winter, and one in summer, and drain. Otherwise, the knife and gage should be used.

32. The Sulphur Combines

The pudding, if correctly baked, will be creamy, with a golden brown, soft crust on top. Serves five or six persons. Add enough water to make a paste barely moist enough to hold together, using a knife and cutting through the dough to mix it. Roll half of it with as little pressure of the rolling-pin as possible, until it is about one-eighth of an inch thick. If a two-crust pie is to be made, lay this crust on the inside of an unbuttered pie plate, trim the edge, and put the trimmings with the remaining paste and roll it out for the upper crust. If a single under crust is to be used, as for lemon pie, lay the paste on the outside of a pie plate, trim the edge and prick through the crust in several places.

Figure 70
Bake it for about fifteen minutes in a moderate insulated oven, with the pie plate upside down in the oven. (Fig. 70) This fact is taken advantage of in ventilation. It has been estimated that, to keep the air pure, three thousand cubic feet of fresh air per hour are required for a male adult, and that a sleeping-room should contain at least twelve hundred cubic feet of air-space for each occupant. When the temperature of the external air is such that the doors and windows can be constantly open, they afford the best means of ventilation for dwellings. Remove the baked crust and fill it. Vulcanizing is the process of heating raw India rubber with sulphur; the sulphur combines with the rubber to form a new compound.

If a large amount of sulphur is used and great heat is used hard rubber, or vulcanite, or ebonite is formed. If a small amount of sulphur and a low heat are used the elastic rubber that is so common is formed. Co., 5 Union Square, New York, sells them, and unvulcanized rubber as well. Mounting the Rubber.

Figure 71
Pare enough apples to fill the pie heaping full, when cored and cut into eighths. (Fig. 71) Fill the pie with the apples, spread the sugar and cinnamon and grated rind over them.

Roll out the upper crust, cut several gashes in it to allow steam to escape; lay it over the pie, trim the edges and press them together with a fork. Bind the edge of the pie by laying around it a wet strip of cloth about one inch wide. Bake it for one-half hour in an insulated oven with the stones heated until the paper test shows a golden brown colour. Now it is obvious that a draught may be rendered harmless if the entering current of air is guided in such a direction as not to strike the occupants of a room.

Figure 72
Apple and berry pies are better made without an under crust in an extra deep pie plate. (Fig. 72) Pick over the berries. Line a deep plate with crust, or omit the lower crust; fill the pie heaping full of berries, cover them with one-half cupful or more of sugar mixed with one-fourth cupful of flour. There are various patent apparatuses for the admission of fresh air through windows without draught, but they are mostly modifications of the methods above mentioned.

33. A Crystallizable Substance

Motors of models like that shown in this chapter are wound one-thousand turns or more for each flight. Wind the Motors Slowly, especially after the first row of knots begin, as it puts the rubber to the least amount of strain by doing this. Quick winding not only strains the rubber but makes the knots form in bunches, and uneven winding, of course, produces an uneven unwinding. These are glued into position. Silica or sand is found crystallized most perfectly in nature in six-sided pyramids, but is not a salt; it is an acid termed silicic-acid.

Sand has no acid taste, because it is insoluble in water, but when melted in a crucible with an alkali, such as potash, it forms a salt called silicate of potash. Magnesia, from being insoluble, or nearly so, in water, is all but tasteless, and has barely any alkaline reaction, yet it is a very strong alkaline base; 20.7 parts of it neutralize as much sulphuric acid as 47 of potash.

Figure 73
A salt is not always a crystallizable substance, and vice versa.. (Fig. 73) The progress of our chemical knowledge has therefore demanded a wider extension and application of the term salt., and it is not now confined merely to a combination of an acid and an alkali, but is conferred even on compounds consisting only of sulphur and a metal, which are termed sulphur salts..

If will be necessary either to buy the largest size Bunsen, or make one yourself, if you have the materials. If you can get a cone which can be screwed into an inch pipe, file the opening of the cone to 1/16 in. The flame end of this burner tube should be about 4-1/2 in.

When lighted, the point of the blue flame, which is the hottest part, should be just in the hole in the bottom of the kiln. So also in combinations of chlorine, iodine, bromine, and fluorine, with metallic bodies, neither of which are acid or alkaline, the term haloid salts. The two lower rows are deprived of their trays to make storage partitions, and the two upper are fitted with handles as above.

Finally there is a row of three trays placed endways on the top of the five just mentioned. For "playing at shops" a little model like this is invaluable.

Figure 74
For this a large empty match tray is required. (Fig. 74)

34. The Position Shown

82 illustrates the position to be taken in horizontal boring. This line gives the depth of mortise for the tails. The groove for the drawer bottom having been cut, or its position marked on the end of the front, lay out on the end the half tenons at both edges so that the groove shall come wholly within a tail mortise. The amount of flare at which to set the bevel is given in Chapter VIII, Section 100. Go to the silk hat and take from it a glass full of rice.

The glass is apparently that which has just vanished and the rice is that which the audience think is in the lower bowl. The head of the brace is held steady by bracing the body against the hand which holds it. In horizontal boring, the first sight should be made while in the position shown in the illustration.

Figure 75
Then go to the bowls and "discover" the missing water. (Fig. 75)

The handkerchief is really made of two handkerchiefs sewn together; sewn between them, in the centre, is a round piece of cardboard of the size of the top of the glass. When you throw the handkerchief over the glass you get the disc of cardboard exactly over the top of the glass. Captain Ericsson's invention is therefore to be tried in mid-air. The application of the mechanical power is ingeniously devised.

The propeller is fixed in the bow of the lifeboat, projecting at an angle of about forty-five degrees. From a wheel at the extremity twenty fans radiate. The second position for sighting would be obtained by inclining the upper part of the body until the eye is on a level with the bit. Changing from one position to the other can be done easily and without interfering with the boring and should be done quite often, until the bit has entered well within the wood.

Figure 76
The chin, resting upon the left hand, steadies the tool in the first case, and can be made to give additional pressure in the second. (Fig. 76) Then reverse the position of the board and, inserting the point of the spur in the hole just made, finish the boring from the back side.

The bit must be held perpendicular to the surface while boring from the second side, as well as the first, or some of the edge of the hole will be broken from the first side as the bit is forced thru. With the rule, measure the distance from the surface of the piece to the grip of the brace. The brace may then be turned until this distance is diminished by the amount which represents the desired depth of the hole. This can be placed beside the bit so that the grip will strike it.

35. The Pieces Together

Pneumatic trough, with gas jar raised to shelf; bubbles of air are rushing in at b., as the level of the water is below the shelf—viz., at c c.. Procure small brads and glue with which to fasten the pieces together. To Prepare the Cigar-boxes for use, place them in a tub of boiling water and let them remain there until the paper labels readily pull off.

Figure 77
Do not use a knife in removing the paper, as it is likely to roughen the wood. (Fig. 77) The paper will come off by allowing it to soak long enough. When the boxes are clean, set them in the sun to dry, after binding the covers to the backs to prevent them from warping. Pull the boxes apart when they are thoroughly dry, and throw out such pieces as have printing upon them, for these would spoil the appearance of the furniture if used.

In order to simplify the matter of cutting the parts that make the furniture, the curved pieces have been drawn out carefully on page 177, so that they can be laid off upon the strips of cigar-boxes without any trouble, by the process of. A very sharp knife must be used for cutting; and the work must be done slowly and carefully, because the least slip is likely to ruin the propeller. The entering-edge of each blade is the almost straight edge, and should be cut very thin.

36. A Teaspoonful of Vinegar

Put it into the cooker for from two to four hours, depending upon the age and toughness of the veal.

Figure 78
Reheat them before serving, if necessary. (Fig. 78) Fluorine F   = 18.9 8.

Mix the seasonings with the crumbs, add the melted butter, mix these with the veal, add the pork and, lastly, the eggs. Carbon C   = 6   9. You put as much oil as you please; two bottles of oil might be used and it would still be thick. Spread it on chicken salad, etc. Chop some capers and shallots very fine, mix them well with a mayonnaise when made, and you have a Tartar sauce.

Figure 79
Proceed exactly as for caper-sauce, using chopped mushrooms instead of capers. (Fig. 79)

Boron B   = 10.9 10. Sulphur Sv  = 16   11. Phosphorus P   = 32   12. Put the mixture in a well-buttered one-quart brown bread mould or water-tight can. Take a small saucepan and set it on the fire with two ounces of butter in it, and when melted add a small onion chopped; stir, and when nearly fried add a tablespoonful of flour, stir, and when turning rather brown, add half a pint of broth, salt, pepper, a pickled cucumber chopped, four stalks of parsley, also chopped, and mustard; boil gently about ten minutes, add a teaspoonful of vinegar; give one boil, and serve.

Figure 80
Silicon Si  = 21.3 13. (Fig. 80)

Plan of the Six-room Doll Apartment. The Third Story Unit, with diagrams of its two partitions F and G placed to the left of it. How the Three Stories are Arranged Side by Side to form a Six-room Apartment. Spread it level but do not pack it in the mould.

Stand it in a large cooker-pail with enough boiling water to come at least two-thirds of the way up the mould. Boil it for twenty minutes and put it into the cooker for four hours. Serve it either hot or cold.

Figure 81
Set the chopped onion on the fire with one gill of vinegar, and boil gently till the vinegar is entirely absorbed, or boiled away. (Fig. 81) Make the same sauce as above in another pan, omitting the onion and vinegar, and when done mix the two together, and it is ready for use. Add three shallots, chopped fine, to the chopped onion, and proceed as above for the rest. Make a bunch of seasonings with six sprigs of parsley, one of thyme, a bay-leaf, and two cloves; put it in a saucepan with half a pint of chopped truffles, and about a pint of white wine; set on the fire and boil gently till about half reduced, strain, put back on the fire, turn into it, little by little, stirring the while, nearly a pint of gravy or consommé; continue stirring now and then till it begins to turn rather thick, add pepper to taste, strain, and use with fish and game.

The First Story Unit and Diagram of Partitions. The Second Story Unit and Diagram of Partitions. The Third Story Unit and Diagram of Partitions. Put a piece of butter the size of an egg in a stewpan, and set it on the fire; when melted, sprinkle in it, little by little, about a tablespoonful of flour, stirring the while; when of a proper thickness, and of a brownish color, take from the fire, add a tablespoonful of vinegar, a wine-glass of claret wine, a glass of broth, a shallot cut in two, a middling-sized onion, also cut in two, with a clove stuck in each piece, a sprig of thyme, one of parsley, a bay-leaf, a clove of garlic, a little salt, and two pepper-corns; boil about twenty minutes, strain and use.

37. An Appropriate Passage

The tenth card will be the one thought of.

Figure 82
Of course the surface of the wood is left in hollows and ridges, and it is necessary to use another plane with a plane-iron ground straight and set shallower in order to smooth the surface. (Fig. 82) It is used, as its name implies, for smoothing surfaces. Offer the long card, or any other that you thoroughly well know; and, as the person who has drawn it holds it in his hand, pretend to feel the pips or figures on the under side with your fore finger, or smell it, and then sagaciously declare what card it is. If it be the long card, you may give the pack to the person who drew it, and allow him either to replace it or not.

Then take the pack, and feel whether it be there or not; shuffle the cards in a careless manner, and without looking at it, decide accordingly. Lay sixteen cards on the table, in four divisions, four cards in each, with their faces upwards. The end of the cotton hangs down below the table-cloth close to your hand, and directly you have done the trick you quietly pull the match away, and then you can challenge Mr. Know-all to do the trick himself. When performing the trick, your confederate must take care to select an appropriate passage.

As the straightening is supposed to have been previously done, the shorter length is no disadvantage. For fine work the cap-iron of this plane may be set as close as one thirty-second of an inch to the cutting edge of the plane-iron.

Figure 83
The plane-iron should be set correspondingly shallow. (Fig. 83) It is most commonly used for preparing the parts for glue joints.

The soup in this case is represented with water, and you can use the same glass; it should be about half full of water. Lay a piece of nice shiny cardboard on the top of it—a piece about eight inches square is large enough—and on the cardboard and exactly over the glass stand a cork. On the top of the cork balance a tangerine orange.

Now, if you give a sharp knock to the cardboard with your right hand the cardboard should go skimming away, taking the cork "off the premises" with it, and the tangerine should drop into the water. This feat appears to be very difficult, but it is not; the weight of the tangerine helps you.

Figure 84
Its advantage lies in its length, often two feet or more, which prevents the blade from cutting in the hollow places until all of the high places have been leveled. (Fig. 84)

38. An Excellent Receiver

When the bubbles take on a size of about 3 inches in diameter shake them off and they will rise slowly and gracefully in the air. Before they get out of reach touch them with a long lighted taper and they will explode viciously with a sharp report like that made by a revolver. When the flame is brought close enough to the bubble it fires the gases in it, and they explode and combine chemically to form water. It consists of a hydrogen gas generator and an oxygen gas generator.

Connected to the L tube is a length of rubber tubing into the other end of which another L tube is fitted. Connected to the L tube is fixed another length of rubber tubing and in the free end of this is fixed another and shorter L tube. The stones should be heated until the paper test shows a golden brown colour.

Make a syrup of the water and sugar. Put the apples into a pudding dish, pour the syrup over them, and place a slice of lemon over the top of each.

Figure 85
Bake them in a slow insulated oven for one hour with the stones heated until the paper test shows a light brown. (Fig. 85) Prepare and cook the pears as directed for baked sweet apples.

If desired, a bit of butter the size of a bean may be put on each pear before baking. Prepare and cook the quinces as directed in the recipe for baked sweet apples. Now place the two short L tubes side by side and cement them together with sealing wax. As soon as cold, bottle it and use when wanted.

However, in some woods as maple, the unevennesses are maintained, the high places being added to as are the low.

Figure 86
Twice as much sugar and water will be required for quinces, and, perhaps, more time for baking. (Fig. 86) Set the bottles or flasks as far apart as possible and in the hydrogen bottle put a handful of granulated zinc.

This will make an excellent receiver. This will depend upon the size and ripeness of the fruit. It is usually cut in halves before baking. Cook them in a slow insulated oven, for about three hours. The stones should be heated until the paper barely changes colour, as explained in the test given on page 225. Scald the milk or boil the water, add the fat, let it cool till lukewarm, then add the remaining ingredients, except the flour. If compressed yeast is used, add as much flour as is needed to make a dough that may be kneaded.

39. The Short Strips

How to Make a Policeman's Puzzle. Pivot the leg near the foot of each policeman to the ends of both of the strips by driving a couple of brads through and into them and then nail the Israelite fast to the top strip with a couple of brads.

Figure 87
Now when you pull the strips apart one of the long arms of the law will crack Ikey on the cranium and when the strips are pushed together again the other minion of authority will bounce his club on the place where his brains ought to be. (Fig. 87) A little red and blue water color will add to the realism of the toy. Nail one of the short strips on the bottom close up to the seat and the blocks of wood it rests on and nail the side strips on the bottom. Next round off the lower edge of the short board that is left; set it in between the ends of the sideboards and drive a brad through each of the sideboards and into the tail-board near the bottom; this brings the tail-board so that it can be closed up or let down as the side view at B shows.

Nail one fast near the rear of the bottom 2 inches from the back end, and nail the other one fast to the front of the bottom 1 inch from the end. The ice chisel here described will be found very handy, and may be made at very slight expense. In the top of an old ax-head drill a 9/16-in. In this case a handle must be attached to the rim of the wheel to serve as a crank.

Figure 88
The drive wheel from a broken-down eggbeater will do nicely. (Fig. 88)

67 illustrates a way in which the ends of narrow pieces may be easily squared. For ease in handling the pump, a platform should be added. The plane is pressed to the shooting board with the right hand. Thread the other end of the pipe, and screw on an old snow-shovel handle.

40. The Paper Bends

Transpiration is the evaporation of water from all parts of the tree above ground, principally from the leaves. The amount of water absorbed by the roots is greatly in excess of what is needed. That fresh supplies of earthy matter may reach the leaves, the excess of water must be got rid of. In trees with very thick bark, transpiration takes place thru the lenticles in the bottom of the deep cracks.

Figure 89
You can also take out nearly all the water with a small sponge and the remainder with a piece of blotting paper. (Fig. 89)

Naturally, the paper will sink down under the weight. Then you move the two glasses a little nearer to each other and try again, and again the paper bends under the weight of the glass you place on it. You explain that there is a way of resting the glass on the paper in such a way that the paper shall not sink down.

I remember it now. A pounded steak may appear or taste more tender to a person not knowing or never having tasted a good steak, but an experienced palate cannot be deceived.

Figure 90
It is better to broil before than over the fire. (Fig. 90) 'Impossible' happens to be the name of the trick; thanks for giving me the clue. ." "With the water still in the glass," says one of your victims. When cut, trimmed, salted, and peppered, put them in a bowl, and sprinkle some sweet-oil or melted butter over them; turn them over in the bowl every two or three hours for from six to twelve hours. To cut and prepare.

Cut the meat in round or oval slices, as even as possible, of any size, about one inch in thickness, and trim off the fibres and thin skin that may be around. Do not cut off the fat, but flatten a little each slice with a chopper. Salt and pepper them, dish, spread a maître d'hôtel over them, and serve very warm.

This is not really the title of the next trick, but it is sometimes suitable for it when the trick is performed by a man who has never had a rehearsal. Cooks and epicures differ about the turning over of steaks; also about broiling them with or without salt; some say that they must not be turned over twice, others are of opinion that they must be turned over two or three, and even more times; some say that they must be salted and peppered before broiling, others say they must not; we have tried the two ways many times, and did not find any difference; if there is any difference at all, it is in the quality of the meat, or in the person's taste, or in the cook's care.

Figure 91
Such hinges are more easily applied than those with the fixed pin. (Fig. 91) If, however, you wish a larger winding-spool, you can use a larger can than the baking-powder can—a tomato can or syrup can—and increase the diameter of the wooden flanges accordingly.

41. The Largest Circle

When you lay the aces one over the other, of course nothing but the kings or knaves can be seen; and on turning the kings or knaves downward, the four aces will make their appearance. You must have two perfect cards, one a king or knave, to put over one of the aces, else it will be seen; and the other an ace, to lay over the kings or knaves. When you wish to make them all appear blank, lay the cards a little lower, and by hiding the aces, they will appear white on both sides; you may then ask which they wish to have, and may show kings, aces, or knaves, as they are called for. Cut very neatly the spots from a three of spades.

Figure 92
The construction of an electric stove is very simple, and it can be made by any home mechanic having a vise and hand drill. (Fig. 92)

Each long projection represents a leg, which is bent at right angles on the center line by placing the metal in the jaws of a vise and hammering the metal over flat. If just the rim is gripped in the vise, it will give a rounding form to the lower part of the legs. The small projections are bent in to form a support for the bottom. Holes are drilled near the edges for stove bolts to fasten it to the bottom projections. Two of the larger holes are used for the ends of the coiled rod and the other two for the heating-wire terminals. With no other tools than a hacksaw, some files, a compass, and with the exercise of a little patience and moderate skill, very good teeth may be cut on blank wheels.

First take the case of a small gearwheel, say 1 in.

Figure 93
Set two quarts of cold water on the fire, with an ounce of salt, and two ounces of butter; at the first boil, drop into it four ounces of macaroni; boil five minutes, and drain. (Fig. 93) Immediately drop the macaroni in boiling consommé, and boil gently till done. Drain it again and place a layer of it in the soup-dish, over the macaroni; place a thin layer of Parmesan cheese grated; then a layer of macédoine of vegetables; then again, a layer of macaroni, one of cheese, etc.; pour consommé to taste on the whole, and serve warm.

Draw a circle on paper, the same diameter as the wheel. The distance AB will be approximately the pitch. Now describe a smaller circle for the base of the teeth and halfway between these circles may be taken as the pitch circle.

Now describe a circle the same size as the largest circle on a piece of 1/16-in. This guide should have a beveled edge, E, from F to G, to lay along the line on which the saw-cut is to be made. The latter holes should be well insulated with porcelain or mica.

Figure 94
Four small ears are turned down to hold the top in place. (Fig. 94) A small clearance space, FC, must be made to allow the teeth of the saw to pass.

42. Making a Mortise

Lay out the piece to the dimensions shown upon this drawing, and then cut it out, making a mortise in each end for the wheels to fit in. One end of spool A should be pivoted with a longer finishing nail than those used for the other pivots, so that when driven in place about half an inch will project beyond the frame. The hole in one of these spools is about three-sixteenths of an inch in diameter, so, in order to make it fit tightly upon the nail, it is necessary to fill in around the nail with sealing-wax.

To do this, turn the wooden frame upon its edge and place the spool over the nail, being careful to get the nail in the exact center of the hole.

Figure 95
When the hole has been partially filled, allow the wax to harden a little, and then press it down around the nail with the end of a match, being careful not to throw the spool out of center by doing so. (Fig. 95) The hole should then be filled to the top. We are now ready to prepare the clockwork for mounting upon the wooden frame. Suppose he fixes on six numbers, viz. He must add together the numbers as follows, and tell you the sum in each case:— 1.

These will be recognized readily in any clock, as they are pivoted close together, and regulate the speed of the other wheels. The sum of the 1st and 2d 8 2. The sum of the 2d and 3d 13 3.

43. The Conjurer Finishes

Figure 96
First split the kidneys in four pieces, trim off as carefully as possible the sinews and fat that are inside, then cut in small pieces. (Fig. 96) The quicker this is done the better the kidney. For a whole one put about two ounces of butter in a frying-pan and set it on a very sharp fire, toss it round so as to melt the butter as fast as possible, but without allowing it to blacken; as soon as melted, turn the cut kidney in, stir now and then with a wooden spoon for about three minutes, then add a tablespoonful of flour, stir again the same as before for about one minute, when add a gill of white wine and about one of broth; stir again now and then till the kidney is rather underdone, and serve immediately. On surface locks, the lock is held against the inside of the door or drawer and the position of the keyhole is marked. This hole is bored. Now if you twirl the match in your fingers, and release it suddenly, the top will spin for quite a long time.

The lock is screwed in place, and the escutcheon fastened to the outer or front surface. If the kidney is allowed to boil till perfectly done, it will very seldom be tender.

Figure 97
It may be done with water instead of wine and broth; in that case, add a few drops of lemon-juice just before serving it. (Fig. 97)

If a face plate is used, the door is closed, the position marked, after which the door is opened and the plate is set. The exact quantities of the chemicals required can only be determined by experiment. Prepare and serve it also as calf's-kidney, in every way as directed for the same. Cut the liver in slices a quarter of an inch in thickness, sprinkle on them salt and pepper, place them on a gridiron, and set on a sharp fire; turn over only once, and serve rather underdone, with butter and chopped parsley, kneaded together and spread between the slices.

A few drops of lemon-juice may be added. When the liver is cut in slices, as above, put a piece of butter in a frying-pan on the fire, and when melted, lay the slices in; turn over only once, then serve, with salt, pepper, vinegar, and chopped parsley. Having settled that matter the conjurer has only to carry out the instructions already given. The second and fourth glasses will then have "wine" in them, and the first and third water.

The contents of the first and second mixed together will be "wine," and when poured into the jug will cause the water left in the jug to change into "wine." The oxalic acid in the third glass does the trick of taking all the colour out of the contents of the fourth glass, and when he has poured that into the jug the conjurer finishes, as he began, with a "jug of water." The jug should be taken away at once, because the water will probably become dull and clouded in the course of a few minutes. The "water," by the way, is poisonous; to avoid any chance of an accident the conjurer should pour it away at once, and should also see that the glasses and jug are well washed.

Figure 98
To cause a glass of water to vanish is hardly a complete trick, but it may well form part of many magical experiments. (Fig. 98) Leave the bowls as they are, one inverted on the other, and show a silk hat to the audience, letting them see inside it. Boys who play with lead soldiers often find that, in making up a game, they require some tents for the camp. These are quite easily made either from paper or from calico.

Cut the tail at the joint, so as to make as many pieces as there are joints; throw the pieces in boiling water for fifteen minutes, and drain them. When cold and dry, put them in a saucepan with a bay-leaf, two onions, with a clove stuck in each, two sprigs of parsley, and one of thyme, a clove of garlic, salt, pepper, half a wine-glass of white wine, and a few thin slices of salt pork; cover with broth or water, and set on a moderate fire for two hours. Dish the pieces, strain the sauce on them, and serve with a garniture of cabbage, or with any purée. How to clean and prepare. Now pick up a jug of water with your right hand and throw a large handkerchief over your right arm. With the left hand take a tumbler from the table, pour some water into it, and take it with the disengaged fingers of the right hand, so that with your left hand you can take the handkerchief from your right arm and throw it over the glass.

Figure 99
Directly you have done this, hold the glass, through the handkerchief, with the left hand and put the jug down on the table. (Fig. 99)

44. The Ordinary Colander

It is useful in many ways because it is fireproof. Into a deflagrating spoon place a bit of potassium, set this on fire by holding it in the spoon in the flame of a spirit-lamp, and then rapidly plunge the burning metal into a bottle of oxygen. Isinglass is a nearly pure gelatine and is a white, tough, partly transparent substance which is obtained chiefly from the air-bladders of fish. Now lay another greased and hot sheet of glass on top of the gelatine and let it stay there until it is cold. The sheets of gelatine can be given any color by adding a little aniline to the gelatine while it is hot.

A brilliant ignition occurs in the deflagrating spoon for a few seconds, and there is little or no smoke in the jar.

Figure 100
How to Silver a Mirror. (Fig. 100) The quality of butter depends, to a large extent, upon proper ripening. The product this time is a solid, called potash, and if this be dissolved in water and filtered, it is found to be clear and bright, and now on the addition of a little tincture of litmus to one half of the solution, it is wholly unaffected, and remains blue; but if with the other half a small quantity of tincture of turmeric is mixed, it immediately changes from a bright yellow solution to a reddish-brown, because turmeric is one of the tests for an alkali; and thus is ascertained by the help of this and other tests that the result of the combustion is not an acid., but an alkali.. Moreover, an acid need not contain a fraction of oxygen, as there is a numerous class of hy.dracids, in which the acidifying principle is hydrogen instead of oxygen, such as the hydrochloric, hydriodic, hydro-bromic, and hydrofluoric acids.

Where hand skimming is practised, set separate milkings in cool, well-ventilated places and allow to stand from twelve to eighteen hours for the cream to rise. Skim the cream off with a cup or large spoon, put it into a can which is kept in a cool place at a temperature of 50 degrees Fahrenheit or below. Skimmings from the different milkings are cooled to the same temperature before being added to this stock can. Besides the ordinary colander, it is necessary to have a fine one. We mean, by a fine colander, one with holes half the size of the ordinary ones, that is, just between the colander and strainer.

Figure 101
The contents of this can must be stirred each time after adding the cream. (Fig. 101) This warming is done by setting the can in a vessel of hot water. Frequent stirring is necessary during the ripening period.

Cream properly ripened has a velvety and glossy appearance, with a mild but pleasant sour taste. A colander should not have holes on the sides; it is handier and more clean with holes at the bottom only. He said that he thought it good and even necessary to use some there on account of the climate, but every time he had eaten it he thought he was swallowing boiling alcohol or live coals. A piece of watch-spring is softened at one end, by holding it in the flame of a spirit-lamp, and allowing it to cool. A bit of waxed cotton is then bound round the softened end, and after being set on fire, is plunged into a gas jar containing oxygen; the cotton first burns away, and then the heat communicates to the steel, which gradually takes fire, and being once well ignited, continues to burn with amazing rapidity, forming drops of liquid dross, which fall to the bottom of the plate—and also a reddish smoke, which condenses on the sides of the jar; neither the dross which has dropped into the plate, nor the reddish matter condensed on the jar, will affect either tincture of litmus or turmeric; they are neither acid nor alkaline, but neutral.

It must be well ventilated and lighted.

Figure 102
When hand skimming is not practised the churning will have to be done more frequently to prevent the milk from becoming too sour and giving the butter a bad flavor. (Fig. 102) Some oxygen gas contained in a bladder provided with a proper jet may be squeezed out, and upon, some liquid phosphorus contained in a cup at the bottom of a finger glass full of boiling water, when a most brilliant combustion occurs, proving that so long as the principle is complied with—viz., that of furnishing oxygen to a combustible substance—it will burn under water, provided it is insoluble, and possesses the remarkable affinity for oxygen which belongs to phosphorus. Bladder containing oxygen, provided with a stop-cock and jet leading to, b, b. The best degree of temperature is about 66 degrees Fahr.

45. The Second Member

Here the withdrawal of a certain quantity of heat from the water evidently allows a new force to come into full play. 'Impossible' happens to be the name of the trick; thanks for giving me the clue.

Figure 103
." "With the water still in the glass," says one of your victims. (Fig. 103) The box containing the stage should be 14 in.

The box need not be made of particularly good wood, as the entire interior, with the exception of the glass, figures and lights, should be colored a dull black. This can well be done by painting with a solution of lampblack in turpentine. 157 shows the tenon, the mortise in the second member into which the tenon fits, the mortise in the tenon and its key or wedge.

Where two or more keys of the same size are to be made, it is customary to plane all in one piece. Plane a face side, a face edge, gage and plane to thickness. "Of course—with the water still in the glass." Some members of your audience will be sure to say that it cannot be done; others will beg to be allowed to think it out. You will probably hear whispering: "The water in the glasses has something to do with it. Why was he so jolly careful to get the same quantity of water in each glass?

46. A Good Fire

Figure 104
Dental plaster is finer than the ordinary kind and you can buy all you will need from your family dentist for 5 or 10 cents a pound. (Fig. 104) Wash, boil in water and salt, and serve. They may be used, like craw-fish, to decorate fish after being boiled. Wash well, and put two quarts of them in a saucepan with four onions in slices, two sprigs of parsley, one of thyme, a bay-leaf, two cloves, salt, pepper, half a pint of white wine, and two ounces of butter, just cover with water and set on a good fire; when properly cooked, drain, and serve warm with green parsley all around.

The liquor may be used a second time. The American oyster is unquestionably the best that can be found. It varies in taste according to how it is treated, either after being dredged or while embedded; and also according to the nature of the soil and water in which they have lived.

The work can be oiled and polished but never varnish it.

Figure 105
Carve the cross and lower part of the case by chipping it; carve the leaves in relief and put in the veins with the veining tool. (Fig. 105) To carve out leaves on a flat surface draw the design as before and carve them out with your gouge to look as much like real leaves as you can and to give them the final touch of beauty cut the veins in with your veining tool. For carving out heads, as for example the one shown at C, mark the shape of the object which you intend to carve on the sides of the block as it would look if you cut it down through the middle.

Now screw up the block in your vise and cut away the sides with your chisels and gouges, using the mallet to do it with. All you want to do at first is to get the rough shape of the figure. When you have done this you can go ahead and finish up the work with your chisels and gouges.

47. The Following Experiments

Serves six or eight persons. Wipe the cutlets with a wet cloth, trim off any tough membranes, and cut them into pieces suitable for serving. To incite the citizen to the active practice of simple sabotage and to keep him practicing that sabotage over sustained periods is a special problem.

It will be some time before the scales will drop from the eyes of the person who is sizing up the picture.

Figure 106
That it is not merely hypothetical is shown by the following experiments. (Fig. 106) Two pieces of lead, scraped clean at the surfaces b b.

Stand, supporting the two pieces of lead attached to each other by cohesion. To pass the discharge through wires, nothing more is required than to strain them across a dry mahogany board, between two brass wires and balls, and if a sheet of white paper is placed under them, most curious markings are produced by the fine particles of the deflagrated metal blown into the surface of the paper. An arrangement of two or more Leyden jars is usually called a Leyden Battery, just as a single cannon is spoken of as a gun, whilst two or more constitute a battery. Mahogany board with a sheet of white paper and three pairs of brass wires and balls fixed in the wire, three on each side. If two pieces of lead are cast, and the ends nicely scraped, taking care not to touch the surfaces with the fingers, they may by simple pressure be made to cohere, and in that state of attraction may be lifted from the table by the ring which is usually inserted for convenience in the upper piece of lead; they may be hung for some time from a proper support, and the lower bit of lead will not break away from the upper one; they may even be suspended, as demonstrated by Morveau, in the vacuum of an air-pump, to show that the cohesion is not mistaken for the pressure of the atmosphere, and no separation occurs. And when the union is broken by physical force, it is surprising to notice the limited number of points, like pin points, where the cohesion has occurred; whilst the weight of the lump of lead upheld against the force of gravitation reminds one forcibly of the attraction of a mass of soft iron by a powerful magnet, and leads the philosophic inquirer to speculate on the principle of cohesion being only some masked form of magnetic or electrical attraction. These surfaces are so true, that when placed upon each other, the upper one will freely rotate when pushed round, in consequence of the thin film of air remaining between the surfaces, which acts like a cushion, and prevents the metallic cohesion.

Simple sabotage is often an act which the citizen performs according to his own initiative and inclination.

Figure 107
Acts of destruction do not bring him any personal gain and may be completely foreign to his habitually conservationist attitude toward materials and tools. (Fig. 107) The slides containing the objects usually shown in a magic lantern, are to be bought of opticians with the lantern, and can be procured cheaper and better in this way than by any attempt at manufacturing them.

Should, however, the young optician wish to make a few slides of objects of particular interest to himself, he may proceed as follows: Draw first on paper the figures you wish to paint, lay it on the table, and cover it over with a piece of glass of this shape; now draw the outlines with a fine camel's hair pencil in black paint mixed with varnish, and when this is dry, fill up the other parts with the proper colors, shading with bistre also mixed with varnish. When, however, the upper plate is slid over the lower one gradually, so as to exclude the air, then the two may be lifted together, because cohesion has taken place. Whitworth's planes, with film of air between them. The transparent colors are alone to be used in this kind of painting.

Film of air excluded when cohesion occurs. A glass vessel is a good example of cohesion.

Figure 108
The materials of which it is composed have been soft and liquid when melted in the fire, and on the removal of the excess of heat it has become hard and solid, in consequence of the attractive force of cohesion binding the particles together; in the absence of such a power, of course, the material would fall into the condition of dust, and a mere shapeless heap of silicates of potash and lead would indicate the place where the moulded and coherent glass would otherwise stand. (Fig. 108) A lump of lead, six inches long by four broad, and half an inch thick, may be supported by dexterously taking off a thick shaving with a proper plane, and after pressing an inch or more of the strip on the planed surface of the large lump of lead, the cohesion is so powerful that the latter may be lifted from the table by the strip of metal. The room for the exhibition ought to be large, and of an oblong shape. The thin wires are stretched between the balls, and the lower one is in course of deflagration.

48. The Powerful Rhumkoff

In accordance with my rule, I shall lay the principal stress on card tricks that require no apparatus, and may be performed with ordinary cards. 3rd, Red or amorphous phosphorus, which does not shine or emit white smoke when exposed to the air, and is so altered in its properties that it may be safely carried in the pocket. Enough evidence has therefore been offered to show that the allotropic property is not confined to one element or compound, but is discoverable in many bodies, and in no one more so than in the allotropic state of the element oxygen called. The name at once suggests a marked difference between ozone and oxygen, because the latter is perfectly free from odour, whilst the former has that peculiar smell which is called electric, and is distinguishable whenever an electrical machine is at work, or if a Leyden jar is charged by the powerful Rhumkoff, or Hearder coil; it is also apparent when water is decomposed by a current of electricity and resolved into its elements, oxygen and hydrogen. Wild, 171 Avenue A, New York City.

Figure 109
You are ready now to begin to saw out the design; set the sawblade on the line, jig the saw frame up and down and be careful to give it even and smooth strokes. (Fig. 109)

You will be surprised to find how easily it works. This is a necessary beginning for card tricks. "Making the pass," is the technical term for shifting either the top or the bottom card to any place in the pack that you like.

It is almost impossible to describe it, and I can only say that it will be learned better in five minutes from a friend, than in as many hours from a book. As, however, a friend is not always to be found who can perform the pass, I will endeavor to describe it. The cards are held in both hands, right hand underneath and left above, as in the engraving, where, as the bottom card is to be raised to the top, the little finger is seen between that card and those above it. By a quick movement of the right hand, the bottom card is slipped away towards the left, and is placed upon the top card, under shadow of the left hand, which is raised for the moment to allow of its passage. This movement must be assiduously practiced before it is exhibited in public, as nothing looks more awkward than to see it clumsily performed, in which case two or three cards generally tumble on the floor. While shuffling the pack, cast a glance at the bottom card, make the pass, and bring it to the top.

Figure 110
In drilling iron keep plenty of oil on the drill point. (Fig. 110) A quart bottle, with the stopper loosely placed therein. The stick of clean phosphorus. The water level just to half the thickness of the phosphorus. When you want to saw a piece out of the inside of the board, take your awl and make a hole in it by giving it a twisting motion to prevent it from splitting the wood.

49. The Nitrate of Copper

You enter the place, ask for a French dish; or, ask if you can have such a dish, à la Française? The phosphorus must first be ignited; and as soon as it is introduced into the oxygen, it gives out a light so brilliant that no eye can bear it, and the whole jar appears filled with an intensely luminous atmosphere.

Figure 111
It is well to dilute the oxygen with about one fourth part of common air, to moderate the intense heat, which is nearly certain to break the jar, if pure oxygen is used. (Fig. 111) The following experiment shows the production of heat by chemical action alone. You are politely and emphatically answered in the affirmative; and very often the polite waiter says that a French cook presides in the kitchen. Said customer never asks a second time for a French dish, and pronounces French cookery to be—abominable!

Bruise some fresh prepared crystals of nitrate of copper, spread them over a piece of tin foil, sprinkle them with a little water; then fold up the foil tightly, as rapidly as possible, and in a minute or two it will become red hot, the tin apparently burning away. Where two or more keys of the same size are to be made, it is customary to plane all in one piece. Plane a face side, a face edge, gage and plane to thickness. If there is more than one key, saw each to length.

Shape the remaining edge as desired. Never use any spoon but a wooden one to stir any thing on the fire or in a warm state.

Figure 112
To strain, is to pass a sauce or any thing else through a sieve, a strainer, or a piece of cloth, in order to have it freed from particles of every kind. (Fig. 112) Broth is strained to make soup, so as to remove the small pieces of bones that may be in it, etc. Sugar plays a very important part in cooking. This heat is produced by the energetic action of the tin on the nitrate of copper, taking away its oxygen in order to unite with the nitric acid, for which, as well as for the oxygen, the tin has a much greater affinity than the copper has.

Combustion without flame may be shown in a very elegant and agreeable manner, by making a coil of platinum wire by twisting it round the stem of a tobacco pipe, or any cylindrical body, for a dozen times or so, leaving about an inch straight, which should be inserted into the wick of a spirit lamp; light the lamp, and after it has burned for a minute or two, extinguish the flame quickly; the wire will soon become red hot, and, if kept from draughts of air, will continue to burn until all the spirit is consumed. Spongy platinum, as it is called, answers rather better than wire, and has been employed in the formation of fumigators for the drawing-room, in which, instead of pure spirit, some perfume, such as lavender water, is used; by its combustion an agreeable odor is diffused through the apartment. These little lamps were much in vogue a few years ago, but are now nearly out of fashion.

Figure 113
Experiments on combustion might be multiplied, almost to any amount, but the above will be sufficient for our purpose. (Fig. 113)

50. The Celebrated Electrician

Under some circumstances, you may be able to destroy oil outright rather than interfere with its effectiveness, by removing stop-plugs from lubricating systems or by puncturing the drums and cans in which it is stored. An amusing combination of two experiments may be made by putting some fresh-burned lime into one tea-pot and this freezing mixture into another. When water is poured on the one containing lime, it gives out steam from the spout; while the addition of water to the other produces so much cold, that it can hardly be kept in the hand. Thus heat and cold are afforded by the same medium, water. Rice, when cooked, swells to four times its original bulk. Serves six or eight persons.

Figure 114
Mica is sometimes substituted for glass, and the late Mr. Crosse, the celebrated electrician, constructed a powerful combination of coated plates of this mineral. (Fig. 114) It consisted of seventeen plates of thin mica, each five inches by four, coated on both sides with tinfoil within half an inch of the edge. They were arranged in a box with a glass plate between each mica plate, all the upper sides were connected by strips of tinfoil to one side of the box, and all the under surfaces in the same manner with the opposite extremity of the box.

They were charged like an ordinary Leyden battery. If the glass plate coated with tinfoil is charged, and then placed upright on a stand, it may be slowly discharged by placing a bent wire on the edge with the extremities covered with pith balls. The wire balances itself, and continues to oscillate with noise until the electricities of the two surfaces neutralize each other.

Figure 115
Glass plate or stand coated with tinfoil on each side, b. (Fig. 115)

Wire with pith balls oscillating during the discharge of the glass plate. Melt a small quantity of the sulphate of potassa and copper in a spoon over a spirit lamp; it will be fused at a heat just below redness, and produce a liquid of a dark green color. Remove the spoon from the flame, when the liquid will become a solid of a brilliant emerald green color, and so remain till its heat sinks nearly to that of boiling water; when suddenly a commotion will take place throughout the mass, beginning from the surface, and each atom, as if animated, will start up and separate itself from the rest, till, in a few moments, the whole will become a heap of powder. Provide two small pieces of glass; sprinkle a minute portion of sulphur upon one piece, lay thin slips of wood around it, and place upon it the other piece of glass. It is easy to imagine the glass plate of the last experiment rolled up into the more convenient form of the Leyden jar, which consists of a glass vessel lined both inside and out with tinfoil, leaving some two or three inches of the glass round the mouth uncovered and varnished with shell-lac; a piece of dry wood is fitted into the mouth of the jar, through which a brass wire and chain are passed, and the end outside is fitted with a ball. The Leyden jar is charged by holding the ball to the prime conductor of the electrical machine until a sort of whizzing noise is heard, caused by the excess of electricity passing round the uncovered part of the jar and not through it, as the smallest crack in the glass of the Leyden jar would render it useless.

51. The Croton Supply

Cooks and epicures differ about the turning over of steaks; also about broiling them with or without salt; some say that they must not be turned over twice, others are of opinion that they must be turned over two or three, and even more times; some say that they must be salted and peppered before broiling, others say they must not; we have tried the two ways many times, and did not find any difference; if there is any difference at all, it is in the quality of the meat, or in the person's taste, or in the cook's care. See 5 b. It will be quite easy, too, for them to tie a piece of very heavy string several times back and forth between two parallel transmission lines, winding it several turns around the wire each time.

Figure 116
The same à la Génevoise. (Fig. 116) Put in a saucepan a thick slice of salmon—from five to six pounds; just cover it with broth and claret wine—half of each; season with a bunch of seasonings composed of six or eight sprigs of parsley, two of thyme, two bay-leaves, two cloves, and two cloves of garlic, salt, a few slices of carrot, and a small green onion, or a shallot, if handy.

Boil gently till nearly done, when add about a dozen mushrooms, and keep boiling till done; dish the fish, and put it in a warm but not hot place; mix cold, in a saucepan, four ounces of butter with about two ounces of flour; turn over it, through a strainer, the liquor in which the fish has been cooked, and set on a sharp fire; after about three minutes, during which you have stirred with a wooden spoon, add the mushrooms; stir again for about two minutes, turn over the fish, and serve warm. Beforehand, the string should be heavily saturated with salt and then dried. When it rains, the string becomes a conductor, and a short-circuit will result.

School-sinks must be of cast-iron, not more than two feet in depth, connected at the upper end with the Croton supply, and at the lower end with a drain leading to the street-sewer, and provided with an outlet at the lowest point and on the bottom so as to admit of a complete discharge of the contents whenever the outlet is opened and the sink flushed with water. The sink must be set so that the flange will be at least two feet below the yard surface, to prevent freezing. The same in Salad.

Figure 117
It must be at least ten feet from any window, or as near that distance as practicable. (Fig. 117) The waste-pipe from a hydrant-sink in the yard must be properly trapped, especially where it discharges into a school-sink, a privy-vault, or cesspool, or the house-drain. Boil, as directed for fish, some thin slices of salmon, drain, and serve cold, on a napkin and on a dish. Serve with it, and in a boat, the following: half a teaspoonful of salt, a pinch of pepper, two tablespoonfuls of vinegar, four of sweet oil, a pickled cucumber chopped fine, two hard-boiled eggs, chopped fine also, two or three anchovies, and a tablespoonful of capers; the anchovies may be chopped fine or pounded. Beat the whole well and serve.

A Bunsen burner makes a very hot flame because the gas in the tube moves faster than in an ordinary burner and the oxygen in the air aids the gas to burn. If you have no gas in your house you can use an alcohol lamp which you can either buy or make for yourself. Open light and air courts must be properly drained.

When a privy-vault or cesspool must necessarily be used, and the water-supply of the premises is from a well, they must be at least fifty feet from the well; and the privy-vault must be absolutely tight. As direct as possible. To insure an uninterrupted flow.

52. A Foreign Tongue

Figure 118
Draw the ventilation lights upon the sides of C as shown on the drawings, and then fasten the piece upon the top of B with strips of linen in the same manner as you fastened B in place. (Fig. 118) Cut and glue a piece of cardboard in each end of C to complete the roof. Paint the sides and ends of the car yellow with brown trimmings, and paint the roof a light gray.

Water colors can be used for the purpose. Letter the name of your car-line upon the sides and the number of the car upon each end and side. Having seen how the car is made, you will find it a simple matter to make designs for. Other Cars, using the same scheme for the trucks, and altering the patterns for the sides, ends, and roof, to suit the design. Pour it at once over the fruit and close the cans when cooled.

Cover them with a clean towel while cooling. Watermelon rind may be preserved in the same manner. Forget tools so that you will have to go back after them.

Figure 119
Even if you understand the language, pretend not to understand instructions in a foreign tongue. (Fig. 119) Nothing has, as yet, been said about the. Remove the grapes from the stems, wash them in a colander, then press the pulp from the skins. Inside calipers are used for measuring the inside diameters of cylinders and the like, and, conversely , outside calipers are used for measuring the outside of anything that is round. In either case you measure the distance between the points of your caliper with your rule to find the diameter of the thing. When it has reached the support of the trolley-line, it will stop long enough for the cord trolley to pass around the wooden wheel, and then run in the opposite direction until the other support is reached.

It will thus be seen that the trolley hangs to the upper part of the cable, or trolley-line, in running one way, and to the lower part on the return run. In changing the direction of the run, the ring to which the trolley is attached slides to the other end of the car.

Figure 120
After cutting out the side and end pieces, with door and window openings placed as shown in the illustration, fasten them together with strips of linen glued in the corners. (Fig. 120)

53. Washing the Hands

Wires Attached to a Lavatory. Serve with one cupful of Sauce for Vegetables. Serves six or eight persons. The suggestions for the making of cigar-box furniture in Chapter XVII, and spool and cardboard furniture in Chapter XIX, will give you plenty of material for furniture and save you the expense of buying this part of the furnishings for your house. A very handy article is an attachment on wash basins or lavatories for holding the sleeves back while washing the hands.

It is very annoying to have the sleeves continually slip down and become wet or soiled. If you prefer a garage instead of this stable, you may omit the stalls, and make one or two large windows in the rear wall in place of the small high windows shown.

Figure 121
The dimensions are: width, twenty-four inches; depth, twelve inches; and height, twenty-two inches. (Fig. 121) The barn contains five stalls on the ground floor and a hay-loft above. To build the stable according to the drawings, a box ten by twelve by twenty-four inches should be procured for.

Soak it in cold water for one hour, then drain it; or cook it without soaking. Drop it into the boiling water, let it boil, and put it into the hay-box for one and one-half hours if soaked, or two hours if not soaked. Stand the pail or pan in a cooker-pail of boiling water while in the hay-box. The simple device shown herewith can be made with bent wires or hooks and attached in such a way that it can be dropped out of the way when not in use. Exhaust the air from the receiver, and having done so, detach the objects, so that they may fall.

54. A Shower of Sparks

This deposit will provide very good insulation against heat; after enough of it has collected, the boiler will be completely worthless.

Figure 122
Dredge it well with salt, pepper, and flour, put it into a dripping pan, and cook it in an insulated oven heated as directed for roasts of meat on page 225. (Fig. 122) Heat the pan and meat a little before putting them into the oven. The time for roasting beef depends upon the size and shape of the roasts.

With cast-iron the most vivid scintillations are obtained, particularly if after having fused and boiled the cast-iron with the jet of the two gases, one of them, viz., the hydrogen, is turned off, and the oxygen only directed upon the fused ball of iron, then the carbon of the iron burns with great rapidity, the little globule is enveloped in a shower of sparks, and the whole affords an excellent notion of the principle of Bessemer's patent method of converting cast-iron at once into pure malleable iron, or by stopping short of the full combustion of carbon, into cast-steel. The apparatus for conducting these experiments is of various kinds, and different jets have been from time to time recommended on account of their alleged safety. It may be asserted that all arrangements proposed for burning any quantity of the mixed. Thick pieces weighing under ten pounds will roast rare in twelve minutes to a pound, medium rare in from fifteen to eighteen minutes, and well done in twenty-five or thirty minutes a pound. Thin pieces will take a few minutes less to each pound. Prepare the meat for roasting as directed for roast beef.

If it is desired to burn the mixed. Cook it in an insulated oven heated as directed for roasts on page 225, allowing twenty-five minutes to each pound for lamb, and from fifteen to eighteen minutes for mutton.

Figure 123
Pipe with stop-cock leading from the gas-holder. (Fig. 123) The little reservoir of water through which the mixed gases bubble. Prepare the meat for roasting as directed for roast beef. The jet where the gases burn.

Cork, which is blown out if the flame recedes in the pipe, c.. Keep blast furnaces in a condition where they must be frequently shut down for repair. In making fire-proof bricks for the inner lining of blast furnaces, put in an extra proportion of tar so that they will wear out quickly and necessitate constant re-lining. Make cores for casting so that they are filled with air bubbles and an imperfect cast results.

See that the core in a mold is not properly supported, so that the core gives way or the casting is spoiled because of the incorrect position of the core.

Figure 124
In tempering steel or iron, apply too much heat, so that the resulting bars and ingots are of poor quality. (Fig. 124) Cook it in an insulated oven, heated as for roast beef, allowing from twenty-five to thirty minutes for each pound. A slight blow against your Davy oil lamp will extinguish it, and to light it again you will have to find a place where there is no fire damp.

55. A Sharp Fire

Another way, or à la Chambord. Stuff the fish with sausage-meat, envelop it in a towel, boil, and serve it with a tomato-sauce. The same with Sorrel. To do this, bore a small hole at each end, and blow.

Broil the fish, and serve it on a purée of sorrel or of spinach. Mould it into balls, lay them in a pan with the flour and shake it until the balls are floured; then sauté them with the butter, shaking the pan carefully from time to time, till the balls are browned on all sides. It may also be prepared au court bouillon, à la Bretonne, and aux fines herbes, like bass, etc. Or the balls may be dropped into boiling soup and put into the cooker for one-half hour.

Figure 125
Croûtons Cut slices of bread one-half inch thick, spread thinly with butter. (Fig. 125) Sheep's-head may also be prepared like turbot.

For a fish weighing three pounds, add one gill of broth and half as much of white wine; dust the fish with bread-crumbs, and set in a pretty quick oven. Fifteen minutes afterward, examine it. When done, the fish is dished, a little broth is put in the pan, which is placed on a sharp fire; stir with a spoon or fork so as to detach the bread, etc., that may stick to the pan, then pour this over the fish, and serve warm.

56. An Excellent Disinfectant

A better means of disposing of the excreta, where water-closets can not be had, is the earth-closet, of which there are several varieties. These are so constructed that they resemble a water-closet in appearance, but the excreta are caught in a receptacle beneath the seat, and covered with earth, when the handle beside the seat is raised.

Figure 126
The fingers act as a gage head. (Fig. 126) The boards are cut from each side and considerable pressure is required.

Dry earth is an excellent disinfectant, and when excreta are thus mingled with it they are gradually oxidized and disappear, so that after a time the same earth may, with proper precautions, be used again. Its disinfectant properties have been shown to be due to the presence of microscopic organisms, which decompose the excreta in the act of nourishing themselves. A little chloroform paralyzes them, and deprives the earth of its disinfecting properties, which return, however, when the chloroform is washed out, and the organisms recover their natural vigor. The earth for these closets must be dry, and sifted of coarse particles, and enough must be deposited upon the excreta to cover them and to absorb the urine.

Figure 127
Its advantages, as compared with the water-closet, are, that it is cheaper, requires less repair, is not hurt by frost, is not injured when improper substances are thrown down it, and requires no water. (Fig. 127)

Sometimes a handle like that of the plane is fastened to the beam near the knife or spur. Slitting Gage Mortise Gage Panel Gage For wide boards. A perfect method of disposal of excreta and other house refuse would be one which would insure their prompt and rapid removal in such a way as to prevent the contamination of the air of any inhabited locality during such removal, or after their final deposition. The water-carriage system includes bowls or sinks for the deposit of refuse matters, connecting-pipes to remove such matters from the house, and public sewers for their further conveyance away from human abodes. It is better to limit the attendance at such funerals to as few as possible.

57. A Scarlet Precipitate

In this way an effective means is provided of releasing the lid and enabling the "Jack" to shoot out suddenly. The Jig-saw Puzzle was at one time a very popular toy, and there are signs that its popularity is being revived. If it does not interest you particularly, it will provide a little brother or sister with endless amusement.

These pieces are then jumbled up into disorder, and passed on to the little one in order that the shapes may be fitted into place and the original picture reconstructed.

Figure 128
Take five ale-glasses: place into the first a solution of iodide of potassium; into the second, a solution of corrosive sublimate, sufficiently strong to yield a scarlet precipitate with the iodide in the first glass, without redissolving, as the effect of the experiment depends on the adjustment of this beforehand; into the third, a strong solution of iodide of potassium with some oxalate of ammonia; into the fourth, a solution of muriate of lime; into the fifth, a solution of hydrosulphate of ammonia. (Fig. 128) The following changes occur. Thus, a clear and colorless liquid is changed to scarlet; the scarlet again becomes colorless; the colorless liquid, milky white; and the white, black.

Each of these consists of a capital letter divided up by one or two straight lines into right-angled triangles and other geometrical shapes. While very simple to look at when completed, these little puzzles are by no means easy to solve when the odd pieces are given in a jumbled state. Procure a bottle of chlorine, and arrange two tall cylindrical glasses: fill one half full with a dilute solution of iodide of potassium and starch, and the other with a very dilute solution of sulphate of indigo; provide each vessel with a plate glass or cardboard valve, laid on the top; carefully open the bottle of chlorine, invert it slowly over one cylindrical vessel, so as to pour out half the gas, which is very heavy; add the remainder to the other, and shake up both vessels. The capital letters should be drawn on a piece of cigar-box wood, and then carefully cut out with a fret saw, or, better still, with a tenon saw if you have one. The chlorine will bleach the indigo, and afford a magnificent purple in the iodide of potassium and starch, because it sets free iodine, which combines with the starch, producing a purple compound.

58. A Transparent Nature

Figure 129
This trick is one of the many masterpieces of Mr. David Devant, and I am greatly indebted to him for his permission to include a full description of it in this book and to give his method of working the trick. (Fig. 129) It was Mr. Devant's custom to follow this trick with the "Wine and Water," and he had an object in doing so, for the preparations for the second trick assisted him in performing the first. Behind the glasses there was a large glass lamp chimney with a piece of paper tucked into one end, and a finger bowl, with two spouts, filled with water, and a long hat pin. The effect of the trick—to the audience—was as follows. Directions for Cross-Lap Joint. Measure from one end of each member the required distance to the nearer edge of the joint.

Figure 130
Since the corresponding faces of the two members must be on the same side of the piece when the parts are put together, it will be necessary to lay off the groove of one member on the face and of the other member on the side opposite the face. (Fig. 130) On the other end glue a piece of thin black cardboard, C, and at the center, D, make a small hole with the point of a fine needle. He then filled the tube with water and placed the other piece of paper on the top. He then removed his hand from the lower piece and the water remained in the tube.

He explained that there was no trick about that, the pressure of the air kept the paper in its place and so prevented the water from rushing out. It is very important that the hole D should be very small, otherwise the image will be blurred. If the joints are to be in the middle of each member but one measurement need be made.

Chapter VII, Section 62.

Figure 131
It is necessary to have a strong light to get good results and, as in all microscopes of any power, the object should be of a transparent nature. (Fig. 131) The apparent diameter of an object is inversely proportional to its distance from the eye, i. e., if the distance is reduced to one-half, the diameter will appear twice as large; if the distance is reduced to one-third, the diameter will appear three times as large, and so on. He then removed the paper from the lower end of the tube and still the water remained inside it. As the nearest distance at which the average person can see an object clearly is about 6 in., it follows that the diameter of an object 3/4 in.

Then he took the paper from the top of the tube, and still the water remained in the tube. Having replaced the papers he picked up the large hat pin and held the tube over the bowl. The object would then be magnified 8 diameters, or 64 times. The mother of vinegar examined in the same way is seen to be swarming with a mass of wriggling little worms, and may possibly cause the observer to abstain from all salads forever after.

Figure 132
Square sharp knife lines across at these points. (Fig. 132)

He pierced the upper paper with the pin and held it there for a moment. Directly he withdrew the pin with the paper impaled on it the water fell out of the tube into the bowl, carrying the lower paper with it. By superposition, locate and knife the second edge of each joint.

59. A Double Bottom

Skewers are never used with fish in vinaigrette, or when the fish is cut in pieces. The craw-fish has only to be boiled before using it for decorating fish. Refer back to matters decided upon at the last meeting and attempt to re-open the question of the advisability of that decision. Advocate “caution.” Be “reasonable” and urge your fellow-conferees to be “reasonable” and avoid haste which might result in embarrassments or difficulties later on. Be worried about the propriety of any decision—raise the question of whether such action as is contemplated lies within the jurisdiction of the group or whether it might conflict with the policy of some higher echelon.

Figure 133
Then place an empty bottle against a dark background and focus so as to have the outlines of the bottle enclose those of the man. (Fig. 133) Shrimps and prawns are used the same as craw-fish. Oysters are also used, raw or blanched; run the skewer through a large oyster or craw-fish, then through a slice of truffle; again through an oyster, truffle, etc.; through two, three, or more of each, according to the size of the skewer or of the fish. A fish-kettle must have a double bottom.

It is more handy to take the fish off without breaking it, and there is no danger of having it spoiled while cooking. When ready to serve it, stir it lightly with a fork till all the ingredients are evenly mixed. Pilaf is injured by much overcooking. Serves five or six persons.

Add the salt and boiling water; boil it hard for one hour, and put it into a cooker for from six to twelve hours. It is improved by the longer cooking.

Figure 134
The pail or pan in which it is cooked should be stood in a large cooker-pail of boiling water. (Fig. 134) A tablespoonful of butter may be added before serving if it is used as a vegetable. Fish-kettles are found in every house-furnishing store. Let this exposure be about twice the length of the first, and the desired result is obtained. Make two wheels out of tin.

Clean and prepare the fish, as directed for baking; put it in a baking-pan with salt, pepper, and butter spread all over it; just cover the bottom of the pan with water or broth; place a piece of buttered paper over it and bake. Serves five or six persons. On wheel A fasten two pieces of wood, C, to cross in the center, and place a bell on the four ends, as shown.

60. Placing the Lantern

The chicken is served in salad. Procure a rather old turkey and roast or bake it till about one-third done; put it in a soup-kettle with about a pint of water to a pound of meat, and set it on a rather slow fire.

Figure 135
As soon as the scum comes on the surface, skim it off carefully; then add two onions, two leeks, two or three heads of lettuce, a small handful of chervil if handy, and salt. (Fig. 135)

A good proportion is: to one pound of Java add about four ounces of Mocha, and four ounces of one or two other kinds. Now ask how many nines are contained in the remainder. No notice need be taken of any overplus of a remainder, after being divided by nine.

Good coffee, as well as tea, is said to possess exhilarating properties. Its use was not known in Europe before 1650. Neither was the use of sugar, tobacco, and brandy. Let a person think of a number, say 6 1. Good coffee cannot be made but by leaching.

Figure 136
The easiest utensil is what is called a filter, or coffee-pot, or biggin, according to locality, with a top to diffuse the water. (Fig. 136)

The coffee-pot called "the French balance" makes the best-flavored coffee, but it is an expensive one. There are several good filters, but the great majority or the people find them too complicated for daily use. The transparent colors are alone to be used in this kind of painting. The room for the exhibition ought to be large, and of an oblong shape. At one end of it suspend a large sheet so as to cover the whole of the wall.

Figure 137
Add to this the number thought of 63 Let him inform you what is the number produced; it will always end with 3. (Fig. 137)

The company being all seated, darken the room, and placing the lantern with its tube in the direction of the sheet, introduce one of the slides into the slit, taking care to invert the figures; then adjust the focus of the glasses in the tube by drawing it in or out as required, and a perfect representation of the object will appear. Broth that is not to be used immediately must be cooled quickly after being strained, as the quicker it is cooled the longer it keeps. As soon as cold, put it in a stone jar or crockery vessel, and place it in a cool, dry, and dark place.

Strike off the 3, and inform him that he thought of 6. Simmer about five hours. Use the broth as chicken-broth above, and serve the turkey in salad. It will keep three or four days in winter, but only one day in summer. If the weather is stormy, it will not keep even for twelve hours; it turns sour very quickly. I do not put parsnips or thyme in broth, the taste of these two vegetables being too strong.

Figure 138
They really neutralize the fine aroma of broth. (Fig. 138)

61. The Enlarging Apparatus

Or with shallots chopped fine, and then bruised in a coarse towel. While in the country during vacation time, I missed my daily bath and devised a shower bath that gave complete satisfaction. The back porch was enclosed with sheeting for the room, and the apparatus consisted of a galvanized-iron pail with a short nipple soldered in the center of the bottom and fitted with a valve and sprinkler.

Cross section top view of the enlarging apparatus. This developer will keep for a long time if the bottle containing it is kept full, otherwise the air will act on it. This layer is the living and growing part of the tree. The illustration shows a rack for postcards. Those having houses with mission-style furniture can make such a rack of the same material as the desk, table or room furnishings and finish it in the same manner.

Figure 139
The dimensions are given in the detail sketch. (Fig. 139) This last one is considered of too strong a taste for ladies. The two ends are cut from 1/4-in.

Only three pieces are required, and as they are simple in design, anyone can cut them out with a saw, plane and pocket knife. A good substitute for a shoe horn is a handkerchief or any piece of cloth used in the following way: Allow part of the handkerchief or cloth to enter the shoe, place the toe of the foot in the shoe so as to hold down the cloth, and by pulling up on the cloth so as to keep it taut around the heel the foot will slide into the shoe just as easily as if a shoe horn were used. In building a photographic dark room, it is necessary to make it perfectly light-tight, the best material to use being matched boards. These boards are tongued and grooved and when put together effectually prevent the entrance of light. The next important thing to be considered is to make it weather-tight, and as far as the sides are concerned the matched boards will do this also, but it is necessary to cover the roof with felt or water-proof paper.

The best thickness for the boards is 1 in., but for cheapness 3/4 in. The dark room shown in the accompanying sketch measures 3 ft.

Figure 140
6 in., the height to the eaves being 6 ft. (Fig. 140)

62. A Current of Electricity

A little magnet floating in mercury contained in the glass a a.; the north pole is allowed to float above the surface of the quicksilver, and the south pole is attached to the wire passing through the bottom of the glass vessel. The electricity passes in at b., and taking the course indicated by the arrows travels through the glass of quicksilver to the other pole of the battery at c.. Directly contact is made with the battery, the little magnet rotates round the electrified wire, w.. A flat file is run lengthwise over them the full length of the saw so that none of the teeth may project more than others.

This block keeps the surface of the file at right angles to the blade of the saw. The kind of saw determines the angle or angles at which the file is held with reference to the saw blade. This is to even the sides of the teeth that the kerf may be smoothly cut.

Figure 141
CHAPTER III. Planes. (Fig. 141) Books, circulars and jobbing.

The bottom of this plane is of iron. Planes are made in different sizes. As certain lengths are more suitable for certain kinds of work they have been given distinguishing names such as jack-plane, smooth-plane, fore-plane, jointer. The dotted line shows the level of the mercury in glass. In the examination of the magnetic phenomena obtained from wires transmitting a current of electricity, it should be borne in mind that any conducting medium which forms part of a closed circuit—i.e., any conductor, such as charcoal, saline fluids, acidulated water, which form a link in the endless chain required for the path of the electricity,—will cause a magnetic needle placed near it to deviate from its natural position. "The plane in which the magnet moves is always parallel to the plane in which the observer supposes himself to be placed.

The whole of this apparatus is made in the most elegant and finished manner by Messrs.

Figure 142
Wire conveying the current of electricity. (Fig. 142) The two irons of the plane, the plane-iron or plane-bit, and the cap-iron are fastened together by means of a stout screw.

63. Misplacing the Openings

"Dropping below the basket is a metallic lifeboat, in which is placed an Ericsson engine. Captain Ericsson's invention is therefore to be tried in mid-air. The application of the mechanical power is ingeniously devised. The propeller is fixed in the bow of the lifeboat, projecting at an angle of about forty-five degrees. From a wheel at the extremity twenty fans radiate.

He cuts off a piece about an inch in length, lights one end, and wraps it up in a piece of tow which he holds in his left hand. The trifling smoke will be concealed by a huge bundle of loose tow also carried in the left hand. He takes a handful of tow in his right hand, puts it into his mouth, chews it up, and appears to swallow it. He then takes another handful, and with it the piece in which is the string.

Figure 143
By varying the pressure of your fingers on the glasses you can produce a very beautiful tremolo effect. (Fig. 143)

It is a good scheme to put a few drops of acetic acid into each goblet so that just as quickly as the volume of sound begins to fall off you can dip your finger tips into whatever glass they are nearest to and so increase the friction between them and the glass. If you can play a set of musical glasses well your services will be in demand for all kinds of entertainments. Cylindrical sticks of wood can also be used for the tubes. Hungerford Brass & Copper Co., 89 Lafayette St., New York. To tune the tubes saw off and file off the end of each tube until it gives forth the proper note.

Figure 144
Usually, it is found possible to locate and square with knife and trysquare a line to represent one of the sides of the joint. (Fig. 144)

The first member is then held so that one of its arrises rests upon this line, and a point is made with knife at the other arris. Lay out duplicate parts and duplicate joints as suggested in Chapter VII, Section 62. As he puts this into his mouth, he takes out the piece which he has already chewed. Where several joints of a similar size and kind are to be fitted, mark the different parts to each joint with the same number or letter as soon as fitted that no other member may be fitted to either of these.

Salt and pepper them, dish, spread a maître d'hôtel over them, and serve very warm. The members may then be laid on the bench and accurately marked without danger of misplacing the openings. While the knife is used almost exclusively in laying out joints, there are a few instances in which a pencil, if well sharpened and used with slight pressure is preferable.

Figure 145
By taking breath through the nostrils, and breathing it out through the mouth, smoke begins to issue forth, and the whole interior of the mouth is soon lighted up with a glow. (Fig. 145) When the mouth is shut, and the tow pressed together, the fire goes out, except the piece of prepared string. To illustrate, suppose it is desired to locate the ends of the mortises in the posts.

To knife entirely across the surfaces of the four pieces and around the sides of each as would be necessary to locate the ends of the mortises, would injure the surfaces. Instead, pencil these lines and gage between the pencil lines. Cooks and epicures differ about the turning over of steaks; also about broiling them with or without salt; some say that they must not be turned over twice, others are of opinion that they must be turned over two or three, and even more times; some say that they must be salted and peppered before broiling, others say they must not; we have tried the two ways many times, and did not find any difference; if there is any difference at all, it is in the quality of the meat, or in the person's taste, or in the cook's care.

Figure 146
When the steak is served as above, place some fried potatoes all around, and serve hot. (Fig. 146) More tow is then taken into the mouth, and treated in the same manner.

64. A Flat Surface

This is how it is made by the Harlem River clam-baker, Tom Riley.. Done on sand, the clams, in opening, naturally allow the sand to get in, and it is anything but pleasant for the teeth while eating them. See if the meat is fine, of a clear red color, with yellowish-white fat. Cow beef must also be of a clear red color, but more pale than other beef; the fat is white.

Always Brook Trout   Apr. Lake Trout 4 to 9 lbs. Stones that have worn uneven may have their surfaces leveled by rubbing them on a piece of sandpaper or emery paper placed on a flat surface.

Suppose the grinding produced a bevel of about twenty-five degrees, in whetting, effort should be made to hold the blade so as to produce an angle slightly greater than this. The aim at all times should be to keep this second angle as near like the first as is possible and still get a straight bevel to the cutting edge.

Figure 147
To get the tool into proper position, lay it flat on the stone with the beveled edge resting in the oil which has previously been placed on the stone. (Fig. 147) Cod 3 to 20 lbs.

Make mistakes in quantities of material when you are copying orders. The oil should be drawn to the place where the whetting is to be done, the back edge of the bevel being used to push and draw it to place. Always Haddock 5 to 8 lbs. Always Black Bass 3 lbs. Cusk 5 to 8 lbs.

65. The Little Beauty

Give someone a bowl of water and ask them to lay a pin on the surface of the water and leave it there. The pin naturally sinks to the bottom of the bowl, whereupon you complain that your directions have not been carried out properly; they are not likely to be unless the person to whom you hand the pin happens to know the secret of the trick. Lay a cigarette paper gently on the top of the water and put the pin on the paper. To use the cutter set the stop on the rod at the length you want to cut the tube; then put the rod with the cutter on it in the tube and with the seat outside; press the V rods together tight and turn it and the tube in opposite directions when it will make a good cut and you can break the tube in two easily.

Figure 148
It has an adjustable cutter head mounted on a square rod so that the head can be turned on it. (Fig. 148)

The rod is mounted on a hardwood base so that it can revolve around the latter. After the cutter head is set on the rod for the size of the circle you intend to cut hold it down on the glass by the thumb-piece. Another most ingenious arrangement, also prepared by Mr. Darby, is termed by the inventor, the "Land and Water Signal," and may be thus described:—A short hollow ball of gutta-percha, or other convenient material, five or six inches in diameter, and filled with printed bills, or the information, whatever it may be, that is required to be sent, is attached to a cap to which a red flag, having the words "Open the shell." and four cross sticks, canes, or whalebones with bits of cork at equal distances, are fitted. It may also be served with a caper or maître d'hôtel sauce; or, when cold, serve à la vinaigrette. Salt salmon is also served like salt cod-fish. The cutter head is then moved round in a circle and a clean cut is made after which the edge of the disk can be smoothed up.

This circular glass cutter, which is called the Little Beauty, will cut a circle 20 inches in diameter and costs about 50 cents. If you are making a frictional electric machine this is the tool you need to cut the glass plates with. There are just two things you need to bend glass tubes with and these are a Bunsen burner and the glass tubing, both of which you can buy of Eimer and Amend, Fourth Avenue, Cor. The whole is connected by a string to the fuse as before described.

Figure 149
It may also be served on a purée of celery or of onion. (Fig. 149) Cut it in thin slices; have very hot butter or oil in a frying-pan, and lay the slices in only long enough to warm them; then take out, drain them, and serve with a few drops of lemon-juice or vinegar sprinkled on them.

This is not a good fish fresh; it is generally preserved, and served as a hors-d'oeuvre. It comes from Holland, Italy, and the south of France. Fresh, it is prepared like sturgeon.

These signals are adapted for land and water: in either case they fall upright, and in consequence of the sticks projecting out they float well in the water, and can be seen by a telescope at a distance of three miles. The land and water signal, which remains upright on land, or floats on the surface of water. The water-tight gutta-percha shell, containing the message or information.

Figure 150
18th Street, New York. (Fig. 150) Revell Co., New York. A Bunsen burner makes a very hot flame because the gas in the tube moves faster than in an ordinary burner and the oxygen in the air aids the gas to burn.

66. The Mercury Contained

Before you do this, however, there is something to be done to the other end. You must cut a slot 1/2 in. To support this on the metal V pieces you will need a thin piece of steel—such as a piece of an old pocket-knife blade. Drop the cover over the bottle quickly and then apparently attempt to put the other cover over it. Two circular boxwood cisterns, to contain quicksilver, are supported upon the stage or shelf above the base.

Figure 151
Remember, it must fit tightly; so when you cut the slot for it, do not make it too wide. (Fig. 151)

Take a small lump of soft coal and reduce to powder by pounding. Screen out all the coarse pieces and put the remainder in the bag. A bent pointed wire is directed into the cup of each magnet, the ends of which dip into the mercury contained in the boxwood circular troughs on the stage. By using a battery to each magnet, and taking care that the currents of electricity flow precisely alike, they will then rotate in opposite directions. Directly after the ingenious experiments of Faraday became known, a great number of electro-magnetic engine models were constructed, and many thought that the time was fast approaching when steam would be superseded by electricity; and really, to see the pretty electro-magnetic models work with such amazing rapidity, it might be supposed that if they were constructed on a larger scale, a great amount of hard work could be obtained from them.

It is impossible to do this, of course, because the cover which held the shell bottle is the larger of the two; therefore you raise the larger cover again, leaving the shell bottle in its original position over the other bottle. Then put the smaller cover inside the larger one, pick up the bottle, taking care to hide the glass inside it, and place it behind your screen or on a side table. Then take away the glass and you are ready for the next trick. A word as to the appearance of the bottles and the covers. These can be bought at a conjuring shop and you will find that, as the Scotsman said of various brands of whiskey, "Some are better than others." You want a bottle which looks exactly like the real thing, and the only way of making quite sure of getting it is to take an empty bottle with you when you are buying the trick.

Figure 152
A slight shake of the bag over the mold will then cause a cloud of coal-dust to fall on it, thus preventing the two layers of sand from sticking, but this operation will be described more fully later on. (Fig. 152)

Note the slope of the "shoulder" of the bottle. The labelling you can do yourself. As to the covers, take care that they fit properly and are not too stiff. This idea, however, has been proved to be a fallacy, for reasons that will be presently explained.

It is made of wood and is in two halves, the "cope," or upper half, and the "drag," or lower part. The figure on p. 216 displays two of these engines, one of which represents the rotation of electro-magnets within four fixed steel magnets., and the other the rotation of steel magnets by the fixed electro-magnets.. A good way to make the flask is to take a box, say 12 in.

Figure 153
The wooden strips BB are used to hold the sand, which would otherwise slide out of the flask when the two halves of the mold are separated. (Fig. 153)

67. The Luminous Stratum

Split-pea Soup 1 pt. Instability when just at the edge. The leaden bullets raised to the top now show the result of persons suddenly rising, when the boat immediately turns over, and either sinks or floats on the surface with the keel upwards. The body of the sun is supposed to be a habitable globe like our own, and the heat and light are possibly thrown out from one of the atmospheric strata surrounding it. There are probably three of these strata, the one believed to envelope the body of the sun, and to be directly in contact with it, is called the cloudy stratum.; next to, and above this, is the luminous stratum, and this is supposed to be the source of heat and light; the third and last envelope is of a transparent gaseous nature.

The cause of this is explained by supposing that these various spots represent openings or breaks in the atmospheric strata, through which the black body of the sun is apparent or other portions of the three strata, just as if a black ball was covered with red, then with yellow, and finally with blue silk: on cutting through the blue the yellow is apparent; by snipping out pieces of the blue and yellow, the red becomes visible; and by slicing away a portion of the three silk coverings the black ball at last comes into view. The evolution of light is not, however, confined to the sun, and it emanates freely from terrestrial matter by mechanical action, either by friction, or in some cases by mere percussion.

Figure 154
The leaning-tower of Pisa is one hundred and eighty-two feet in height, and is swayed thirteen and a half feet from the perpendicular, but yet remains perfectly firm and secure, as the line of direction falls considerably within the base. (Fig. 154) If it was of a greater altitude it could no longer stand, because the centre of gravity would be so elevated that the line of direction would fall outside the base.

Board cut and painted to represent the leaning-tower of Pisa. The centre of gravity and plummet line suspended from it. The hinge which attaches it to the base board.

Two billiard-cues arranged for the experiment and fixed to a board: the ball is rolling up.. Sections showing that the centre of gravity, c., is higher at a. Wash the bone, boil it for ten minutes in the water and skim it, add the peas and seasoning, bring all to a boil and put it into the cooker for four hours or more. Take out the bone and serve the soup without straining it.

Figure 155
One of the most curious paradoxes is displayed in the ascent of a billiard-ball from the thin to the thick ends of two billiard-cues placed at an angle, as in our drawing above; here the centre of gravity is raised at starting, and the ball moves in consequence of its actually falling. (Fig. 155)

Thus the axles of railway carriages soon become red hot by friction if the oil holes are stopped up; indeed hot axles are very frequent in railway travelling, and when this happens, a strong smell of burning oil is apparent, and flames come out of the axle box. The knife-grinder offers a familiar example of the production of light by the attrition of iron or steel against his dry grindstone. The peas must be cooked until they fall to pieces easily when well beaten. If desired, the meat may be taken from the bone, cut into small pieces and served in the soup. Oyster or Clam Stew 1 qt. Heat the oysters or clams in their liquor which has been strained through cheese-cloth.

Add the pepper and the hot milk and put the stew at once into a cooker for one-half hour or more. It will not be harmed by being kept hot in the cooker for another hour or more.

Figure 156
Serves eight or ten persons. (Fig. 156) Much of the stability of a body depends on the height through which the centre of gravity must be elevated before the body can be overthrown. The greater this height, the greater will be the immovability of the mass.

68. The Principal Material

The little hearts may be painted upon the pieces as shown in the illustration, with a small brush and red paint, or may be cut out of red paper and glued to the wood. If desired, the bedroom furniture may be painted with white enamel. The author constructed many pieces of this furniture when a boy, and found them suitable as presents, and something that was always easy to sell. The cost of making a set amounts to but a few cents, cigar-boxes being the principal material. They are also very quickly made, as the boxes require but little cutting. For the construction of.

As the milk of healthy cows varies in composition within certain limits, it is necessary to have a standard of purity, which has been fixed upon in New York as follows: Nearly 1,000 cows have been examined, with reference to the specific gravity of their milk, in New York, New Jersey, and Connecticut.

Figure 157
The smaller box should be a little shorter than the inside opening of the larger box. (Fig. 157) These brads should run through the outer box into the bottom of the inner box, and should be driven in carefully so as not to split the wood. Finish the wood the same as described for the other cigar-box furniture. Saw the sides of the box in half, crosswise, and remove the upper half and the end piece.

Rice may be used instead of tapioca. Serves six or eight persons. The maximum specific gravity was 1.039 in milk of an Alderney cow. The minimum for normal milk from a healthy cow was 1.029. Then nail the end across the tops of the remaining halves of the sides.

Figure 158
Notice the reading of the scale at the surface of the milk. (Fig. 158) The upper portion of the dresser should have a mirror attached to it, and some lace draped over the top and sides will add greatly to its appearance. Put it into a cooker for one hour. Serve cold with cream. If it is preferred to serve the pudding warm, use only three cups of water.

69. The Cooking Utensil

Excelsior is used by many kinds of merchants, and can be bought for about two cents a pound. Measure from the edge, along this line, or from this line along the edge any given distance. Take twice this distance upon the blade of the bevel and adjust so that a right triangle is formed in which the length of the longest side shall be twice that of the shortest. The spur should be sharpened to a knife point with a file so that it may make a fine smooth line. Are the living to remain idle whilst the unfortunate man is suffocating rapidly at the bottom of the pit? No; provided they do not venture themselves into the pit, they may try every known expedient to alter the condition of the foul air, so as to enable them to descend to the rescue.

Figure 159
It should project far enough below the beam so that the beam may be rolled forward in such a way as to bring the spur into the board at a slight angle, when properly marking. (Fig. 159) It should extend not less than an eighth of an inch and in most cases three-sixteenths of an inch. The best plan, however, is to set the air in motion by heat obtained from burning matter, or even a kettle of boiling water, lowered by a cord, and this fact is well shown by putting a small flask full of boiling water, and corked, at the bottom of the deep glass jar containing the carbonic acid gas, which rises like other gases when sufficiently heated, and passing away, mixes with the surrounding air. Serves forty-five or fifty persons. The graduations on the beam are seldom reliable. Hay is plentiful in country places and can also be purchased at feed-stores in the cities.

Newspapers and hair, such as is used by plasterers, are available in city and country.

Figure 160
Perhaps the best shape for the cooking utensil, that is, one which will have the least possible radiating surface, is a pail about the depth of its own diameter. (Fig. 160) The sides should be straight and perpendicular to the bottom.

Serves forty-five to fifty persons. Vegetable Soup without Stock. The cover should fit securely into place. Serves forty-five or fifty persons.

Figure 161
Serves fifty or fifty-five persons. (Fig. 161)

70. A Metallic Substance

This group of non-metallic elements has been frequently styled "Metalloids," meaning substances allied to, but not possessing, all the properties belonging to a metallic substance; and therefore perhaps the expression, non-metallic solids, is the best that can be adopted. They may be subdivided into two classes of three each, which have properties more or less allied to each other—viz., Carbon, Boron, Silicon; and Selenium, Sulphur, Phosphorus. Symbol, C; Combining Proportion, 6. Symbol, I; combining proportion, 127.1; specific gravity, 4.948. This element has almost the property of ubiquity, and is to be found not only in all animal and vegetable substances, in common air, sea, and fresh water, but also in various stones and minerals, and especially in chalk and limestone. Serve with it, and in a boat, the following: half a teaspoonful of salt, a pinch of pepper, two tablespoonfuls of vinegar, four of sweet oil, a pickled cucumber chopped fine, two hard-boiled eggs, chopped fine also, two or three anchovies, and a tablespoonful of capers; the anchovies may be chopped fine or pounded.

Figure 162
There is, perhaps, no element which offers a greater variety of amusing experiments and elementary facts than carbon, whether it be considered either in its simple or combined state. (Fig. 162) A piece of carbon, in the shape of the Koh-i-Noor, was one of the chief attractions at the first Exhibition in Hyde Park. The diamond is the hardest and most beautiful form of charcoal; how it was made in the great laboratory of nature, or how its particles came together, seems to be a mystery which up to the present time has not yet been solved, at all events no artificial process has yet produced the diamond.

Brewster, speaking of the Koh-i-Noor, remarks that on placing it under a microscope, he observed several minute cavities surrounded with sectors of polarized light, which could only have been produced by the expansive action of a compressed gas or fluid., that had existed in the cavities when the diamond was in the soft. This last can scarcely be called either "odds" or "ends"; and you will probably have to purchase it at a shop selling model-engine fittings, but a few pence will cover the cost. You must get an eight-inch piece of solid drawn copper or brass tubing, with an inside diameter of 1/8 in. This must be done very gently, otherwise you will crack or dent it. The loop shown should have a diameter of about 5/8 to 3/4 of an inch. The actual boat itself can be of any shape.

Now it is known that bamboo, which is of a highly silicious nature, has the property of depositing in its joints a peculiar form of silica, called tabasheer.

Figure 163
If you happen to have an old wooden hull suitable to the purpose, use that; if not, then a flat hull similar to that described on page 70 will do quite well. (Fig. 163) Box and various woods, dried bones, and different organic matters, placed in a nearly close iron or other vessel, and heated red hot, so that all volatile matter may escape, leave behind a solid black substance called charcoal. If that kind obtained from bones, and termed bone black or ivory black, is roughly powdered, and placed in a flask with some solution of indigo or some vinegar, or syrup obtained by dissolving common moist sugar in water, and boiled for a short period, the colour is removed, and on filtering the liquid it is found to be as clear and colourless as water, provided sufficient ivory black has been employed.

71. A Retrograde Movement

Saw out the rockers very particularly so as not to split off the ends. If it were possible to bore or dig a gallery through the whole substance of the earth from pole to pole, and then to allow a stone or the fabled Mahomet's coffin to fall through it, the momentum—i.e., the force of the moving body, would carry it beyond the centre of gravity. This force, however, being exhausted, there would be a retrograde movement, and after many oscillations it would gradually come to rest, and then, unsupported by anything material, it would be suspended by the force of gravitation, and now enter into and take part in the general attracting force; and being equally attracted on every side, the stone or coffin must be totally without weight.

Inclined planes, gradually decreasing in height, cut out of inch mahogany, with a groove at the top to carry an ordinary marble. A lobster boiled after being dead is watery, soft, and not full; besides being very unhealthy, if not dangerous. Fasten the pieces to the cradle box with brads driven through the box bottom into their top edge. After the cigar-box toys have been made, rub down the wood with fine sandpaper.

Figure 164
Then drive all nail-heads below the surface, fill up the holes with putty stained to match the wood as nearly as possible, and finish with two coats of boiled linseed-oil. (Fig. 164) A lobster suffers less by being put in cold than in boiling water, and the flesh is firmer when done.

In putting it in boiling water it is killed by the heat; in cold water it is dead as soon as the water gets warm. Lay it in a fish-kettle; just cover it with cold water, cover the kettle, and set it on a sharp fire. It takes from fifteen to twenty-five minutes' boiling, according to the size of the lobster.

Apply the oil with a rag, then wipe off all surplus oil with a dry cloth.

Figure 165
All that is required for making the little toys shown in this chapter are spools, cardboard, paper, a straight-grained stick out of which to cut pegs, some tacks, pins, and glue. (Fig. 165) Several old hubs with the proper size bore were secured.

72. The Desired Consistency

A poached egg is sometimes served in each plate of soup. Serves sixteen or twenty persons. Soak it for one hour in enough cold water to cover it. Boil it in a covered pail for twenty minutes with three quarts of salted water and the vegetables and seasoning, and put it into the cooker for from nine to twelve hours. Remove the head; cut off the face meat and reserve it; boil the stock until it is reduced to one quart. Place the body of the lobster on the middle of a dish, the head up, the two large claws stretched out, and the two feelers stretched out also and fastened between the claws.

A sprig of parsley is put in each claw, at the end of it, in the small claws as well as in the two large ones.

Figure 166
When you have tied as many knots as the handkerchief will admit of, hand them round for the company to feel that they are firm knots; then hold the handkerchief in your right hand, just below the knots, and with the left hand turn the loose part of the center of the handkerchief over them, desiring some person to hold them. (Fig. 166) If they are not rich enough, boil them slowly, uncovered, until they are of the desired consistency. Then the two empty halves of the tail-piece are put around the body of the lobster, the prepared flesh placed around them; hard-boiled eggs cut in eight pieces each are placed around the dish, tastefully arranged; some slices of red, pickled beets and cut with paste-cutters, are placed between each piece of egg, and serve.

It makes a simple, good, and very sightly dish. Mark the legs 2-3/4 in. Cut six pieces, 17-1/2 in. Take a piece of tracing-paper or any thin transparent paper, and place it over the pattern and make an exact copy; then rub a soft lead-pencil over the other side of the paper, turn the paper over with the blackened side down, and transfer the drawing six times upon a piece of lightweight cardboard. Draw this out upon a piece of cardboard, cut it out and fold along the dotted lines, then turn in the flaps and glue them to the dashboard and to the back.

Figure 167
Then make another sleigh similar to the one just completed, for two are required for the merry-go-round. (Fig. 167)

I used one of these cylinders at St. George's Hall some years ago. It is advisable to produce a flag in the first place, because you are then able to get away with the india-rubber cover behind it; the cover can easily be pulled away and hidden afterwards as you put the flag down. It is a good plan, after the production of the first flag, to take out a number of compressible things. Clean it up and give it a coat of black Japan or dead black. This is a box trap with glass sides and back, the panes of glass being held in place by brads placed on both sides.

73. The Products of Decomposition

Then add about four ounces of rice, washed in cold water, continue boiling until the chicken is overdone and tender.

Figure 168
If it be rather too thick to mash through, moisten it with broth. (Fig. 168) A large iron spoon is the best utensil to mash through with. Then set the rice and flesh back on the fire in a saucepan with broth to taste, stir and add immediately from two to four ounces of butter, a gill of cream, or, if not handy, a gill of milk. Keep stirring on a slow fire for five or six minutes; salt to taste, turn into the soup-dish, and serve. There is no danger of curdling if kept on a slow fire and not allowed to boil.

The same with Broth. The chimney may be lower than the adjoining wall, and the wind from certain directions, striking the wall, may be directed down the flues. This may be remedied by extending the chimney above the wall, or by capping the flues with one of the various cowls that prevent a downward draught.

Figure 169
How to prevent the contamination of the air by the products of decomposition. (Fig. 169) There is no evidence to show that the emanations from fresh house-slops, or the excreta of healthy animals, are injurious to health, but it has been proved that when these matters decompose they become dangerous. The bubbles of gas which rise to the surface of such decomposing matters, when they burst, throw up solid particles of organic matter in the air, which float about for some time before falling to the ground.

Keep on sawing them off and filing them down until you have them all done and all in tune. How to Play the Tubaphone. Under some circumstances, you may be able to destroy oil outright rather than interfere with its effectiveness, by removing stop-plugs from lubricating systems or by puncturing the drums and cans in which it is stored. To make the potage richer, cook the chicken and rice in broth instead of water, and proceed as above for the rest.

The same with consommé. Make the door and window casings, picture-moldings, and baseboards out of strips of cigar-box wood.

Figure 170
They will swell up and choke the circulation of water, and the cooling system will have to be torn down to remove the obstruction. (Fig. 170) Sawdust or hair may also be used to clog a water cooling system.

74. A Globule of Potassium

6-penny nails to construct table. Nail the bottom shelf at an equal distance from the bottom of the legs. Fill a wine glass with cold water, pour lightly upon its surface a little ether; light it by a slip of paper, and it will burn for some time.

When boiling put it again into the cooker for ten hours or more.

Figure 171
Change the water and cook it again, repeating this process until the ginger is very tender. (Fig. 171) Drop a globule of potassium, about the size of a large pea, into as small cup, nearly full of water, containing a drop or two of strong nitric acid; the moment that the metal touches the liquid, it will float upon its surface, enveloped with a beautiful rose-colored flame, and entirely dissolve. Pour into a saucer a little sulphuric acid, and place upon it a chip of sodium, which will float and remain uninflamed; but the addition of a drop of water will set it on fire.

On a lump of refined sugar let fall a few drops of phosphuretted ether, and put the sugar into a glass of warm water, which will instantly appear on fire at the surface, and in waves, if gently blown with the breath. This experiment should be exhibited in the dark. It may take several days.

Make a syrup, using two cupfuls of sugar to each cupful of water, bring the ginger to a boil in this syrup, set it in a cooker for five or six hours; remove the ginger, boil the syrup down to a rich consistency, and pour it over the ginger. It is made of boxes and should be put at some place convenient to the work table so the woman will not have to move to get these things when preparing a meal. 12 salt boxes used as drawers in the compartments. 8-penny nails to be used in the construction of the cabinet.

Figure 172
Hold a cold and dry bell glass over a lighted candle, and watery vapor will be directly condensed on the cold surface; then close the mouth of the glass with a card or plate, and turn the mouth uppermost; remove the card, quickly pour in a little lime-water, a perfectly clear liquid, and it will instantly become turbid and milky, upon meeting with the contents of the glass, just as lime-water changes when dropped into a glass full of water. (Fig. 172)

12 round-head screws to be used as knobs. Directions.: Remove the sides from the box, making them the exact length of the inside of the box. Heat the milk over hot water, add it, one-third at a time, to the butter and flour, stirring constantly and allowing the mixture to become perfectly smooth and glossy before adding more milk.

75. The Following Proportions

This compound, being insoluble in water, renders it turbid. The degree of turbidity may be judged of by looking through the water at a cross marked in lead-pencil on the inside of a piece of paper pasted on the opposite side of the bottle, and a standard may be fixed by shaking up ordinary external air in a sixteen-ounce bottle, as described below, which will show the degree of turbidity produced by 4 parts of carbonic acid in 10,000.

Figure 173
Lime-water can be bought of a druggist, or made by shaking distilled water with slaked lime, allowing it to settle, and pouring off the clear liquid. (Fig. 173)

With a common hand-ball syringe, the end of the rubber tube resting on the bottom of the bottle, pump in air, until the bottle is filled with the air to be tested. Put in half an ounce of lime-water, cork the bottle, and shake it up well. Let it stand for five minutes, and if the water becomes turbid, as if a little milk had been dropped into it, the presence of carbonic acid in the air will be indicated in the following proportions. Trim and tuck in the ends of the strip at the back edge. When fixed this way your magazines make one of the most valuable volumes you can possibly add to your library of mechanical books. A Homemade Acetylene-Gas Generator.

Size of bottle.ounces Amount oflime-water. It is believed, too, that typhus fever may originate in this manner, while when such poisons are inhaled in a more concentrated form, as in the famous Black Hole of Calcutta, nausea, vertigo, convulsions, and even death are produced.

Figure 174
The air is at certain times and places contaminated by the products of respiration and the bodily emanations of diseased persons. (Fig. 174) In the bottom, or rather the top now, of tank A is cut a hole, and a little can, D, is fitted in it and soldered.

On top and over can D is soldered a large tin can screw. Make an oval opening by filing or grinding. A rubber washer is fitted on this so that when the screw top, E, is turned on it, the joint will be gas tight. In certain diseases, commonly known as contagious, organic matters are thrown off by the lungs and skin of the sick, which tend to reproduce these diseases in the bodies of other persons.

76. The Extremities Communicate

In commencing this portion of electrical science, we have no new terms to coin for the title of the discourse, as we merely reverse the other when we examine the nature and peculiarities of. Pivot the Windmill upon the top of a post support, in the same manner as directed for the other windmills. How the Windmill may be Rigged up to Operate a Toy Jumping-Jack. The source of the power must necessarily be a bar or horse-shoe shaped piece of steel permanently endowed with magnetism.

Figure 175
If the former is thrust into a cylinder of wood or pasteboard, around which coils of covered copper wire have been carefully wound, so that the extremities communicate with a galvanometer, an immediate deflection of the needle occurs, which, however, quickly returns to its first position, but is again deflected in the opposite direction on the withdrawal of the steel magnet from the coil of copper wire. (Fig. 175) Then fold it back again and put it on the top of the pack.

Of course, if you are performing with a borrowed pack of cards you will have to seize your opportunity to do this when the attention of the audience is directed to another trick, or you can do it before your performance begins. To show the important elementary truth, that in all cases of electrical excitation the two kinds of electricity are generated, take a dry roll of flannel, and holding it as lightly as possible, rub it against a bit of wax. Coil of copper wire. Permanent bar magnet placed inside the coil, when the galvanometer needle, d., is deflected. To Operate a Toy Jumping-Jack, by supporting the jumping-Jack on a bracket, and connecting its string to the hub of the windmill.

Figure 176
How the Jumping-Jack is Supported. (Fig. 176)

The Malay tailless kite is probably the most practical kind ever invented. It will fly in a wind that the tail variety could not withstand, and it will fly in a breeze too light to carry up most other forms of kites. It is also a strong pulling kite, and can be used for sending aloft lanterns and flags. The rapid entrance and exit of the steel magnet in the helix of copper wire would be insufficient to produce any quantity of electricity, and the ingenuity of man has been taxed to arrange a method by which a magnet may be suddenly formed and destroyed inside a coil of insulated copper wire. The difficulty, however, has been surmounted by several ingenious contrivances, based on the principles first discovered by Faraday; and the one especially to be noticed is the revolution of a coil of copper wire enclosing a piece of soft iron, called the armature., before the poles of a powerful magnet. M. Clarke described a very ingenious modification of the electro-magnetic machine, which is depicted below.

Figure 177
If the flannel is brought to the electroscope, the leaves repel each other, and they immediately fall when the wax is now approached, because the flannel is in the positive or vitreous state of electricity, whilst the sealing-wax is in the negative or resinous condition. (Fig. 177) Any kind of friction generates electricity. In this picture, the letter a. These parts can be covered so that no one can see them. The ordinary latch and catch A are attached to the door in the usual manner. The latch is lifted with a stick of wood B, which is about 1 ft.

77. The Tincture of Cochineal

The four balls—viz., the iron, the two wax, and the cork balls, are allowed to slide down the long glass, which is inclined at an angle; and then, by means of the tube and funnel, pour in the tincture of cochineal, and all the balls will remain at the bottom of the glass.

Figure 178
The water is poured down next, and now the cork ball floats up on the water, and marks the boundary line of the alcohol and water. (Fig. 178) Then the solution of blue vitriol, when a wax ball floats upon it.

Thirdly, the solution of white vitriol, upon which the second wax ball takes its place; and lastly, the quicksilver is poured down the tube, and upon this heavy metallic fluid the iron or glass ball floats like a cork on water. A more permanent arrangement can be devised by using liquids which have no affinity, or will not mix with each other—such as mercury, water, and turpentine. The specific weight or weights of an equal measure of air and other gases is determined on the same principle as liquids, although a different apparatus is required. A light capped glass globe, with stop-cock, from 50 to 100 cubic inches capacity, is weighed full of air, then exhausted by an air-pump, and weighed empty, the loss being taken as the weight of its volume of air; these figures are carefully noted, because air. One of the most curious paradoxes is displayed in the ascent of a billiard-ball from the thin to the thick ends of two billiard-cues placed at an angle, as in our drawing above; here the centre of gravity is raised at starting, and the ball moves in consequence of its actually falling. Much of the stability of a body depends on the height through which the centre of gravity must be elevated before the body can be overthrown.

A spur center is screwed to the spindle and this holds the wood tightly in place while it is being turned.

Figure 179
A picture of enemy's battery is supposed to be on the mirror, a., whence it is reflected to b., and from that to the artilleryman at c.. (Fig. 179) The rest, which is adjustable, is used to lay your turning tool on and so keep it in position. A long and short rest usually go with the better lathes.

Two adjoining rooms might have their looking-glasses arranged in that manner, provided there is a passage running behind them. A mirror at an angle of 45 degrees. The arrows show the direction of the reflected image. The tailstock has two adjustments, the first of which allows it to be slipped back and forth on the bed and clamped at any point which gives a rough adjustment, and the second is a spindle which is threaded on one end and has a taper center, that is a sharp point on the other end.

78. A Poised Magnet

The stand it rests upon, and with which it is in communication, contains the condenser..

Figure 180
Place the meat in a soup-kettle or iron saucepan lined with tin, with three quarts of cold water and salt, and set it on a good fire. (Fig. 180) After about thirty minutes, the scum or albumen of the meat will gather on the surface, and the water will commence boiling.

Now place the kettle on a more moderate fire, add one gill of cold water, and begin to skim off the scum, which will take only a few minutes. The lower end of the bar should be marked before it is fastened to the poker, so that the poles may be readily distinguished from each other when it is taken off; the upper end being the south pole, and the lower the north. Scatter some iron filings upon a piece of paper, and hold a magnet underneath it. The instant the contact takes place, the filings will raise themselves upright, and fall down as soon as the magnet is withdrawn. Same width as 2.

Same width as 1. Same width as 1.

Figure 181
The effect is singular, and indeed very amusing; the diminutive iron particles rising and falling, as if by supernatural agency. (Fig. 181) To ascertain whether a piece of metal, or mineral, is magnetic, present it to one of the poles of a poised magnet.

If it be attracted at both poles, you may then conclude that the substance so tested is not magnetic. In using this apparatus, eight pairs of Grove's battery will be quite sufficient to produce the effects, and the greatest care must be taken to avoid the shock, which is most severe and painful, and might do a great deal of harm to a weakly, sensitive, and nervous person. One end of Ruhmkorff's coil. Connexion to receive the battery wires.

In this position no shock can be received, because the electricity is cut off by the ivory from the coil. It is at the other extremity of the coil that the experiments are performed; for instance, if an exhausted globe is connected with the pillars b b. End of coil where the experiments are performed.

Figure 182
Connecting screws and wires passing to the exhausted globe, c.. (Fig. 182) Dip a magnet into boiling water, and it will lose half of its magnetism; but as the magnet cools, its full power will return.

Same width as 1. This may be done by stroking a piece of hard steel with a natural or artificial magnet. Take a common sewing-needle, and pass the north pole of a magnet from the eye to the point, pressing it gently in so doing. The screws are supported on insulating glass pillars, p p.. After reaching the end of the needle, the magnet must not be passed back again towards the eye, but must be lifted up and applied again to that end, the friction being always in the same direction.

79. A Little Ether

The phial will soon be filled with a heavy gas of a deep yellow color. Tie a small test tube at right angles to the end of a stick not less than a yard long, put a little ether into the tube, and pour it gently into the phial of gas, when an instantaneous explosion will take place, and the ether will be set on fire. This experiment should be performed in a place where there are no articles of furniture to be damaged, as the ingredients are often scattered by the explosion, and the oil of vitriol destroys all animal and vegetable substances.

Figure 183
Into a jar containing oxygen gas, introduce a coil of soft iron wire, suspended to a cork that fits the neck of the jar, and having attached a small piece of charcoal to the lower part of the wire, ignite the charcoal. (Fig. 183)

The iron will take fire and burn with a brilliant light, throwing out bright scintillations, which are oxide of iron, formed by the union of the gas with the iron; and they are so intensely hot, that some of them will probably melt their way into the sides of the jar, if not through them. But by far the most intense heat, and most brilliant light, may be produced by introducing a piece of phosphorus into a jar of oxygen. The phosphorus may be placed in a small copper cup, with a long handle of thick wire passing through a hole in a cork that fits the jar.

The phosphorus must first be ignited; and as soon as it is introduced into the oxygen, it gives out a light so brilliant that no eye can bear it, and the whole jar appears filled with an intensely luminous atmosphere. It is well to dilute the oxygen with about one fourth part of common air, to moderate the intense heat, which is nearly certain to break the jar, if pure oxygen is used.

Figure 184
The following experiment shows the production of heat by chemical action alone. (Fig. 184)

Bruise some fresh prepared crystals of nitrate of copper, spread them over a piece of tin foil, sprinkle them with a little water; then fold up the foil tightly, as rapidly as possible, and in a minute or two it will become red hot, the tin apparently burning away. In rabbeting across the grain the spur must be set parallel with the edges of the cutter. The mortises are cut before the rabbets are worked. This heat is produced by the energetic action of the tin on the nitrate of copper, taking away its oxygen in order to unite with the nitric acid, for which, as well as for the oxygen, the tin has a much greater affinity than the copper has. The tenons are laid out so that the shoulder on one side shall extend as far beyond the shoulder on the opposite side as the rabbet is deep.

To place glass panels in rabbets, first place a slight cushion of putty in the rabbet that the glass may rest against it. A light cushion between the glass and the fillet will serve to keep the glass from breaking and will keep it from rattling. The many forms of round-bottomed glass bottles used in chemical laboratories require some special kind of support on which they can be safely placed from time to time when the chemist does not, for the moment, need them. Mark with a trysquare and saw off the lugs, the parts of the stiles which project beyond the rails.

Figure 185
Plane an edge of the door until it fits a side of the frame against which it is to be hung. (Fig. 185)

80. The Cloth Bands

It will be convenient to have also a larger pail for large pieces of meat, such as hams. Method of packing the box. For magic lanterns and slides address the Charles Beseler Co., 131 East 23rd Street, New York.

This will vary somewhat with the different insulating materials used. These may be classified as: Those into which the cooking utensil may be set without any intervening covering, among which are hay, excelsior, and paper. Those requiring a covering material to keep them in place and to protect them from contact with the utensil, among which are wool, mineral wool, cork, sawdust, and cotton.

Scrub new beets, that is, those freshly pulled.

Figure 186
Sets of lantern slides can be rented of the Charles Beseler Co., 131 East 23rd Street, New York City. (Fig. 186) Sew together the ends of the cloth bands, or paste the ends of the paper bands, lapping them so the measurement around the inside will be exactly 5 feet 8 inches, the proper measurement around the sticks of the finished kite.

Cross-section of the Box-kite. Cut off the stalks three inches from the beets, put them into four quarts or more of boiling, salted water, boil five minutes, and put them into a cooker for five hours or more. In this way the frames will keep the cloth or paper bands stretched tight. The notched ends of the diagonals should be lashed with thread to keep them from splitting.

Figure 187
Complete instructions for making an induction coil will also be found in The Book of Electricity. (Fig. 187) Coat the lashings with glue after winding them, and the thread will hold its position better.

Old beets, if wilted, should be soaked till firm, and cooked as new beets. They will require six or more hours according to their age and condition. Well this is one way to make electricity without apparatus though you need a cat to do it with. A cat is not apparatus but only a kitten growed up.

Figure 188
The cloth or paper bands should be fastened to each horizontal frame stick with two tacks placed near the edges of the bands. (Fig. 188)

81. A Board Weighted

The entire screen will then appear to be a vivid green for about one second, after which it assumes its normal color. The audience see both hands on the top edge of the cloth and therefore are convinced that you are not removing the hat. Two finishing nails were driven in, as shown in the sketch. These were connected to terminals of an induction coil.

Put the pieces of fish in also, add salt and pepper, to taste, cover the whole with fish-broth, boil gently till the fish is cooked, and serve warm.

Figure 189
Some caviare may be added just before serving. (Fig. 189) Skim off the scum carefully, and boil gently till the whole is done. Make the sound of a man drinking from a glass. After everything was ready the powder was poured in the hole and a board weighted with rocks placed over the block.

As soon as either the chicken or duck, etc., is done, take it from the kettle. When the whole is cooked, drain. Put the liquor back in the kettle with a middling-sized head of cabbage cut in four, or about the same quantity of sour-krout, slices of carrots and onions, pearl-barley, semoule, or gruel; simmer about three hours, and it is done.

Figure 190
It is served in two ways: first, all the meat and vegetables are cut in small pieces and served with the broth as soup; second, the broth is served with the vegetables cut up, and the meat is served after and separately, as a relevé. (Fig. 190) Nothing is thrown away but the pepper-corns and cloves.

Just cover the whole with cold water, and skim carefully as soon as the scum comes on the surface. When skimmed, add a gill of dry peas, previously soaked in water for an hour, half a small head of cabbage, pimento to taste, one carrot, one turnip, two leeks, three or four stalks of celery, same of parsley, two of thyme, two cloves, two onions, two cloves of garlic, ten pepper-corns, and some mace; fill up with water so that the whole is just covered, and simmer for about five hours. In case the water should simmer away too much, add a little more. Somebody will be sure to pick up the hat to see if the water is in the glass; then you drink the water. You have performed the feat of drinking the water without lifting the hat. A more difficult experiment—until you know the secret.

82. Making a Silhouette

In paper making, the pores of this material, unless filled up or sized, cause the ink to blot or spread by capillary attraction. The porosity of soils is one of the great desideratums of the skilful agriculturist, and drainage is intended to remove the excess of water which would fill the pores of the earth, to the exclusion of the more valuable dews and rains conveying nutritious matter derived from manures and the atmosphere. Oil, wax, and tallow, all rise by capillary attraction in the wicks to the flame, where they are boiled, converted into gas, and burnt. The solution of acetate of lead.

Figure 191
The dilute sulphuric acid. (Fig. 191)

The clear liquid, separated from the sulphate of lead in b.. A piece of tin, E, is cut V-shaped at each end and bent up at the ends to form bearings for the pins. The silk thread C is fastened to the wooden axle and is wrapped one or two turns around it, so that when the thread is pulled the pointer will move on the scale. For this reason a very small shrinkage of B, such as occurs when the atmosphere is dry, will cause an increased movement of C, which will be further increased in the movement of the pointer. An instrument of this kind is very interesting and costs nothing to make. The motor will soon pay for itself in the saving of laundry bills.

At the end of this time they are perfectly clean, and I have noticed that they wear twice as long as when I sent them to the laundry. Contributed by Reader, Denver.

Figure 192
After shutting the front door and hearing the spring lock snap into its socket, most people go off with a childlike faith in the safety of their goods and chattels. (Fig. 192) But the cold fact is that there is scarcely any locking device which affords less protection than the ordinary spring lock. Making a Silhouette with the Camera.

It is the simplest thing in the world for a sneak thief to slip a thin knife between the door-casing and the strip, push back the bolt, and walk in. Fortunately, it is equally easy to block that trick. Take a narrow piece of tin 3 or 4 in.

Figure 193
Another way is to drive nails through the strip at intervals of half an inch, enough to protect the bolt from being meddled with. (Fig. 193)

83. The Principles Involved

Suppose the number chosen to be nine, to which is to be added one, making ten, and which last, being tripled, gives thirty. Then: 1st case. In my own practice, I carry out this part of the work thoroughly, then dry the prints and lay aside these dark ones until there is an accumulation of a dozen or more, doing this to avoid too frequent use of the very poisonous bleaching solution.

The Kite Sticks, though any strong, light-weight wood of straight grain may be used if easier to obtain. The bleacher is made up as follows and should be plainly marked "Poison." Cyanide of potassium. Place the dry print, without previous wetting, in this solution. Contributed by Victor Labadie, Dallas, Texas. Stir and mix thoroughly.

Figure 194
Soak pieces of gray outing flannel of the desired size—15 by 12 in. (Fig. 194) Wring the surplus fluid out and hang them up to dry, being careful to keep them away from the fire or an open flame. These cloths will speedily clean silver or plated ware and will not soil the hands. If you live near a lumber yard or planing-mill, possibly you can get strips of just the size you require from the waste heap, for the mere asking, or for a few cents get them ripped out of a board.

The half of the last half, 1 being again added, is 18 Here we see, that in the second and third case, one had to be added, and, looking at the table, we find that the only corresponding word having an i in its second and third syllables is Ob-tin-git, which represents the figures one and nine. Then, as one had to be added in the fourth case, we know by the rule, that the figure in the second column, 9, is the one required. Observe, that if no addition be required at any of the four stages, the number thought of will be fifteen; and if one addition only be required at the fourth stage, the number will be seven. This is an elegant application of the principles involved in discovering a number fixed upon.

Figure 195
The number of persons participating in the game should not exceed nine. (Fig. 195)

In cleaning silver, it is best to wash it first in hot water and white soap and then use the polishing cloths. The cloths can be used until they are worn to shreds. Do not wash them.

Knives, forks, spoons and other small pieces of silver will keep bright and free from tarnish if they are slipped into cases made from the gray outing flannel and treated with the compound. Separate bags for such pieces as the teapot, coffee pot, hot-water pot, cake basket and other large pieces of silverware will keep them bright and shining. Books having a flexible back are difficult to hold in an upright position when copying from them. A makeshift combination of paperweights and other books is often used, but with unsatisfactory results.

Figure 196
If not, you will find it easy enough to cut them yourself with a sharp rip-saw. (Fig. 196)

84. The Property of Impenetrability

The presence of the carbonic acid in the hydrogen bottle is easily proved by pouring in a wine-glassful of clear lime-water, which speedily becomes milky, owing to the production of carbonate of lime; whilst the proof of the hydrogen being present in the carbonic acid is established by absorbing the latter with a little cream of lime—i.e., slacked lime mixed to the consistence of cream with some water—and setting fire to the hydrogen that remains, which burns quietly with a yellowish flame if unmixed with air; but if air be admitted to the bottle, the mixture of air and hydrogen inflames rapidly, and with some noise. If a tolerably large jar containing hydrogen is now placed over the porous cell, bubbles of gas make their escape at the end of the tube, because the hydrogen diffuses itself more rapidly into the porous cell than the air which it already contains passes out. When the jar is removed, the reverse occurs, hydrogen diffuses out of the porous cell, and the blue liquid rises in the tube. This diffusive force prevents the accumulation of the various noxious gases on the earth, and spreads them rapidly through the great bulk of the atmosphere surrounding the globe. The jar of hydrogen.

First name the ace of spades.

Figure 197
He touches a card, which you take up without showing the face of it. (Fig. 197) Electrical machines consist only in the better arrangement of larger pieces of glass and a more convenient mechanical contrivance for rubbing them, and are of two kinds—viz., the cylinder and plate machines; it is usual to give directions for the manufacture of an electrical machine from a common bottle, and doubtless such rude instruments have been made, but as Messrs. The brass cap and glass tube d., the end of which dips into the tumbler containing the solution of indigo e..

The wire and stand supporting the porous cell and tube in tumbler. A barrel is sunk in the ground in a shady place, allowing plenty of space about the outside to fill in with gravel. A quantity of small stones and sand is first put in wet. Although air and other gases are invisible, they possess the property of impenetrability, as may be easily proved by various experiments.

A box is placed in the hole over the top of the barrel and filled in with clay or earth well tamped. Elliott Brothers, of 30, Strand, now supply excellent small machines at a very low cost, it is hardly worth while to incur even a small expense for an instrument that must at the best be a very imperfect one and frequently out of order.

Figure 198
A cylinder electrical machine. (Fig. 198) Plate machines are somewhat more expensive than cylinder ones, but at the same time are more quickly prepared for experiments, and Mr. Hearder, of Plymouth, states, that the secret in obtaining the greatest amount of electricity from a cylinder machine, is to keep the inside of the glass absolutely clean, dry, and free from dust. When lumber reaches its destination it is sorted and graded according to lumbermen's standards, after which, it is loaded upon trucks and hauled to the storage yards.

This is called air seasoning. Having opened a pair of common bellows, stop up the nozzle securely, and it is then impossible to shut them; or, fill a bladder with air by blowing into it, and tie a string fast round the neck; you then find that you cannot, without breaking the bladder, press the sides together. It is customary to say that a vessel is empty when we have poured out the water which it contained. Having provided two glass vessels full of water, place each of them in an empty white pan, to receive the overflow, then lay an orange upon the surface of the water of one of them, and being provided with a cylindrical glass, open at one end, with a hole in the centre of the closed end, place your finger firmly over the orifice, and endeavour, by inverting the glass over the orange, and pressing upon the surface of the water, to make it enter the interior of the glass cylinder; the resistance of the air will now cause the water to overflow into the white pan, whilst the orange will not enter. The porous condition of the gravel drains the surplus water after a rain. The end of the barrel is fitted with a light cover and a heavy door hinged to the box.

85. A Fireless Cooker

Figure 199
The dime will be expelled by the force of the air, and will fall either upon the upper surface of the quarter or upon the table. (Fig. 199) A little practice will render the performance of this feat very easy. Fill the nail holes with putty. Sand lightly if a smooth finish is desired.

Boiled Leg or Shoulder of Mutton. Wipe the meat with a damp cloth, put it into a cooker-pail with boiling salted water enough to cover it, and to permit of at least three or four quarts of water being used, the amount depending upon the size of the leg. Boil it for half an hour and cook it in the cooker for six hours or more.

Figure 200
The broth should be saved for soup stock and gravy. (Fig. 200) Beat the eggs till blended. If the last coat is to be dull, turpentine is used in it as well as the second. While the outfit you need to turn wood with costs more than for scroll sawing you will never forget the pleasure of rounding up of a bit of wood into a shapely form, no, not if you were to live a thousand years. How a Lathe is Made. The head stock is fixed to the bed of the stand; it is formed of a cone pulley mounted on a spindle in a frame.

A spur center is screwed to the spindle and this holds the wood tightly in place while it is being turned. The rest, which is adjustable, is used to lay your turning tool on and so keep it in position. Even where the entire meal is not cooked in a fireless cooker, it may be convenient to have one or two dishes so prepared, and the remainder served cold or cooked on the stove. Consommé Fricasseed chicken Samp Winter squash Creamed turnips Stewed figs with cream.

Figure 201
Turkish pilaf Salmon loaf Lettuce salad Canned quinces Cake Tea. (Fig. 201)

Served after theatre or entertainment, the hot dish to be put into the cooker before going out. A long and short rest usually go with the better lathes. Ready to serve at once. Reading references and experiments illustrating the principles upon which fireless cookery is based. A test of the insulating powers of different materials.

86. A Bottle of Oxygen

After the combustion has ceased and the whole is cool, a little tincture of litmus may also be poured in and shaken about, when it likewise turns red, proving for the third time the generation of an acid body, called carbonic acid—an acid, like the others already mentioned, of great value, and one which Nature employs on a stupendous scale as a means of providing plants, &c., with solid charcoal.

Figure 202
Carbonic acid, a virulent poison to animal life, is, when properly diluted, and as contained in atmospheric air, one of the chief alimentary bodies required by growing and healthy plants. (Fig. 202) In three experiments acid bodies have been obtained; can we speculate on the result of the next?

Into a deflagrating spoon place a bit of potassium, set this on fire by holding it in the spoon in the flame of a spirit-lamp, and then rapidly plunge the burning metal into a bottle of oxygen. The size of this convenience varies with the material available for making the device and with the size of the family. Materials.: 10' of oak.

Directions.: Measure and saw the handles the right dimensions. The space around the cans should be at least 2 inches, and filled with straw or wood shavings, etc. The top of the cans should be covered with a pad filled with straw or shavings, etc. A brilliant ignition occurs in the deflagrating spoon for a few seconds, and there is little or no smoke in the jar.

Figure 203
The product this time is a solid, called potash, and if this be dissolved in water and filtered, it is found to be clear and bright, and now on the addition of a little tincture of litmus to one half of the solution, it is wholly unaffected, and remains blue; but if with the other half a small quantity of tincture of turmeric is mixed, it immediately changes from a bright yellow solution to a reddish-brown, because turmeric is one of the tests for an alkali; and thus is ascertained by the help of this and other tests that the result of the combustion is not an acid., but an alkali.. (Fig. 203) Moreover, an acid need not contain a fraction of oxygen, as there is a numerous class of hy.dracids, in which the acidifying principle is hydrogen instead of oxygen, such as the hydrochloric, hydriodic, hydro-bromic, and hydrofluoric acids.

87. The Process of Smoking

Add the cream and, when boiling, the raw yolks of two eggs which have been slightly beaten. An infertile egg will be clear, while a fertile egg has a spider-like center with threads leading out from it. Stir it constantly for about two minutes until the eggs have cooked. Then add two tablespoonfuls of Madeira wine and the yolks of two hard-cooked eggs cut into quarters.

Figure 204
Serves five or six persons. (Fig. 204)

Experiments undertaken under the management of the Department of Agriculture have resulted in the conclusion that pork is as thoroughly and easily digested, under normal conditions of health, as any meat, although personal experience would indicate that pork does not agree with some people as well as other kinds of meat. It is specially important, however, that pork be very well cooked or well cured, in order to insure against the danger from trichinosis. Ransom that it is only by eating raw or insufficiently cooked or cured pork that there is thought to be any danger of this disease. Curing is the process of smoking, salting, or combined salting and smoking of meat, which acts as a preservative for it.

We thus see that, not only because it is a white meat, as mentioned in the chapter on veal, pork and pork products should be cooked until very well done. Office of Experiment Stations, Bulletin 193, 1907. Such a window box can be made by anyone having usual mechanical ability, and will furnish more opportunities for artistic and original design than many other articles of more complicated construction. The box should be well nailed or screwed together and should then be painted all over to make it more durable. A number of 1/2-in.

Figure 205
Having completed the bare box, it may be trimmed to suit the fancy of the maker. (Fig. 205)

88. Facing the Audience

Into the saucer, which is somewhat suspiciously thick. There is a hole in the centre of the saucer and the hole in the bottom of the cup goes exactly over the hole in the saucer. Put one-fourth of the crumbs in the bottom of a baking dish, add half the oysters, half the salt and pepper and celery leaves; repeat these layers, pour over it the oyster juice, and put the remaining crumbs on top. Bake it in an insulated oven till brown, as directed for scalloped dishes, page 225.

A small lump of copper, or "Dutch metal," will not burn as above, but will be slowly acted upon, like the antimony. Thus, when the water is poured into the cup it finds its way directly into the saucer and the cup can at once be lifted up. If double this recipe is used allow three-quarters of an hour for the baking, and do not heat the stones quite so hot. The trick is more suitable for a stage than for a drawing-room; even a little confetti makes a big litter in a room.

Figure 206
Still, some good-natured hostesses, if asked if they would have any objection to a litter of confetti in a room, would be sure to reply: "Not the slightest, do what you like as long as you amuse the children." Silk from Water. (Fig. 206) Most conjurers like to conclude a performance with a showy trick, one in which they can produce a quantity of ribbons and flags, finishing up with the production of a Union Jack—the bigger the better.

The conjurer begins by showing a large metal cylinder closed at one end. Macaroni and Cheese. The process by which it is obtained offers a good example of chemical affinity; the water of the mineral spring is evaporated, all crystallizable salts removed, and a current of chlorine gas passed through the remaining solution, which changes to a yellow colour, in consequence of the liberation of the bromine by the combinations of chlorine with the bases previously united with the former; the liquid is then shaken with ether, which dissolves out the bromine. In the next place, the etherial solution is agitated with strong solution of potassa, and is thus obliged to part with the bromine which is converted into bromate of potassa; this is ultimately changed by fusion to bromide of potassium; and by distillation with black oxide of manganese and sulphuric acid, the bromine is finally obtained.

Figure 207
When tender, drain it and add the salt, pepper, and cheese. (Fig. 207)

Bromine is a very heavy fluid, which should be preserved by keeping it in a bottle covered with water; when required, a few drops may be removed by means of a small tube, and dropped into a warm bottle, which is quickly filled with the orange-red vapour. If some phosphorus is placed in a deflagrating spoon, and exposed to the action of bromine vapour, it takes fire spontaneously. He rattles his wand inside it and then holds it with its end facing the audience. But he does not hold it perfectly still. If he is performing in a room with the front rows of his audience close to him the utmost he can do—in the way of showing the interior of the cylinder—is to point it to the audience on his right and then bring it round with a quick sweep to the audience on his left. It is as well to have an assistant for this trick, but the assistant must be "in the know"—the conjurer's very own assistant, because he—or, better still, she—is asked to hold the cylinder with both hands while the conjurer fills it with water, and the conjurer cannot allow a member of the audience to undertake that task.

The water should be poured in from a height, so that the audience can see that real water is used, and that it really does go into the cylinder.

Figure 208
The conjurer puts the jug down and peeps into the cylinder as though he were expecting something to happen. (Fig. 208) Of course, the trick could be brought to a conclusion at once, but you may well pause here for a moment—just to "work up the excitement." You dip your hand into the cylinder and take it out dripping with water.

89. A Stooping Position

If nitrites are present, there will be an immediate blue color. This done, set the slide valve in the steam chest; slip the slide valve rod through the head and glue it to the slide valve. When you have the tubes done glue, or otherwise fix, one of the short ones into the intake port of the steam chest and the other short one into the middle, or exhaust port in the bottom of the steam chest; then glue, or fix the two long tubes into the end holes, or ports, of the steam chest and the holes in the cylinders.

When using the plane, stand with the right side to the bench; avoid a stooping position. The plane should rest flat upon the wood from start to finish.

Figure 209
Press heavily upon the knob in starting and upon the handle in finishing the stroke. (Fig. 209) In roasting, good coffee swells about thirty-three per cent., and loses about sixteen per cent. Roast once a week or oftener. Have a rather slow fire at first; when the coffee has swollen, augment the fire, turning, shaking, tossing the roaster, sometimes fast, sometimes slowly, and take from the fire a little before it is roasted enough; the roasting will be finished before the coffee gets cold and before taking it from the roaster, which you continue turning and shaking as if it were yet on the fire.

If the red color disappears in one half hour, add more. For every drop that loses color in the half-pint there will be found one and a half to two grains of putrid organic matter in a gallon of the water. If the action is rapid, the matter is probably animal; if slow, vegetable.

To purify such water, if it must be used, drop in the solution until a slight red tinge remains.

Figure 210
A charcoal fire is the handiest, and more easily regulated. (Fig. 210) It is well roasted when it evaporates a pleasing odor and when of a brownish color. Then take it from the roaster, spread it on a matting or on a piece of cloth, and put it in a tin-box as soon as cold. It is exceedingly difficult, if not utterly impossible, to roast coffee properly by machinery, and for two reasons: in the first place, there is too much of it in the cylinder to roast evenly, some berries are burned, others not roasted enough; the other is, that being turned by machinery, the cylinder is turned regularly and is neither shaken nor tossed; and even if there were not too much coffee in it, some berries would be much more roasted than others. Set a kettle of cold water on the fire.

Place the ground coffee in the filter, and as soon as the water begins to boil, pour just enough of it over the coffee to wet it. The front end of the crankshaft must be supported by a pillow block just as it is in a real engine, but the rear end is held in place by a board screwed to the back of the base. To put the engine together, or assemble it as it is called, screw the cylinder to the base-board, then glue or screw the piston rod guide block to the base; the slide valve rod guide block to the back board, and the pivot block for the rocker arm to the base-board. In every household there are countless things which are thrown away immediately they have served one purpose.

Figure 211
Cotton-reels may be taken as an instance. (Fig. 211) It does not occur to the majority of people that these little wooden articles, strongly made and well finished, may be put to some use, even when the cotton has been wound from them.

90. The Cushion Tightly

Boil it for half an hour and cook it in the cooker for six hours or more. The broth should be saved for soup stock and gravy. Serve it with brown gravy or with caper sauce. Shoulder will not require more than twenty minutes boiling, but will take the full time in the cooker. Lamb may be treated in the same manner.

Figure 212
Braised Leg or Shoulder of Mutton. (Fig. 212) Wipe the meat with a damp cloth, roast it in a hot oven till brown, or dredge it with salt, pepper, and flour, and brown it in a frying-pan; put it, while still hot, into a cooker-pail with enough boiling water to half cover it, or more. Bring it to a hard boil, while tightly covered, put it at once into a cooker for six hours or more. Cut the cardboard circle to fit inside of the top of outside container with an opening to fit the top of the nest and put on top to give a good finish and to preserve the packing.

Then pack the cushion tightly with the same packing. Any convenient box may be used and any can of convenient size, such as a lard can, etc. The cans should be wrapped with about 4 or 5 layers of asbestos paper. The space around the cans should be at least 2 inches, and filled with straw or wood shavings, etc.

The top of the cans should be covered with a pad filled with straw or shavings, etc. Then take a tube, either of glass or metal, and introduce one end of it through a cork, which place in the bottle, then put the other end into the neck of the balloon, and the gas will rise into the body of it.

Figure 213
When quite full withdraw the tube, and tie the neck of the balloon with strong cord very tightly. (Fig. 213)

If freed it will now rise in the air. Cut the gores, according to the form already given, from well woven tissue paper, paste the gores nicely together, and look well over the surface of the paper for any small hole or slit, over which paste a piece of paper, and let it dry. Pass a wire round the neck of the balloon, and have two cross pieces at its diameter a little bent, so that a piece of soft cotton dipped in spirits of wine may be laid on them.

When all is prepared let some one hold the balloon from its top by means of a stick, while you dip the cotton in spirits of wine till it is thoroughly saturated, place it under the balloon and set fire to it, but be very careful you do not set fire to the balloon. This device is invaluable to the housekeeper who does her own work. Serve it with brown gravy, saving the remaining broth for soup stock. When the air is sufficiently heated within, the balloon will indicate a desire to rise, and when it pulls very hard, let it go, and it will ascend to a great height in the air, and at night present a very beautiful appearance.

Figure 214
These are easily made by cutting a piece of paper in a circular form, and placing threads round the edges, which may be made to converge to a point, at which a cork may be placed as a balance. (Fig. 214) They ascend by the air getting under them, and are frequently blown to a great distance.

91. The Largest Proportion

A small steel square is better in every way for metal work than a carpenters' try square but you will find it quite expensive. The advantage of spring dividers over the ordinary kind is that you can set them very accurately and they will stay where you set them. In scribing a circle with a pair of dividers mark the center with your center punch first as this will prevent your dividers from slipping. The floors of the bath-room and kitchen should be covered with oilcloth. The iodine is contained in the largest proportion in the deep sea plants, such as the long elastic stems of the fucus palmatus, &c.

The kelp is lixiviated with water, and after separating all the crystallizable salts, there remains behind a dense oily-looking fluid, called "iodine ley," to which sulphuric acid is added, and after standing a day or two the acid "ley" is placed in a large leaden retort, and heated gently with black oxide of manganese. The chlorine being produced very slowly, liberates the iodine, as already demonstrated in experiment seven, p.

Figure 215
Inside calipers are used for measuring the inside diameters of cylinders and the like, and, conversely , outside calipers are used for measuring the outside of anything that is round. (Fig. 215) Rugs for the hardwood floors may be made out of scraps of carpet. Window-shades may be made for each window out of linen, and tacked to the top casing so that the bottom of the curtain reaches just above the center of the opening. Each window should also have.

Lace Curtains made out of scraps of lace. In either case you measure the distance between the points of your caliper with your rule to find the diameter of the thing.

Figure 216
A center punch is always useful to make a starting point in metal with, for it can't be rubbed off or lost sight of. (Fig. 216) A set of taps and dies to cut screw threads with in metal of whatever kind is a joy forever.

All metal work becomes easy if you have a set of these screw cutting tools and it is next to impossible to make things if you haven't got them. When you are cutting threads in a piece of metal with the tap, the hole in the metal must of course be a trifle smaller than the diameter of the tap; the tap is put into a handle called a stock and as you cut the threads in the metal don't turn the stock continuously around but give it one complete turn forward and then half-a-turn backward and you will be less apt to break the tap. The same method holds good when you are cutting threads on a rod with a die; in this case the rod must be a little larger than the hole in the die. 133, and it is collected in glass receivers. Iodine, when quite pure and well crystallized, has a most beautiful metallic lustre, and presents a bluish-black colour, affording an odour which reminds one at once of the "sea smell." First Experiment. In threading iron use plenty of oil on the tap or die, but for brass and the softer metals a lubricant is not needed.

To do this, bore a small hole at each end, and blow. Of course, if you have ever collected birds' eggs, and are an adept at egg-blowing, you will only need one hole.

Figure 217
Stop up the holes with sealing wax or plasticene. (Fig. 217) This complete shell is to form the hull of the yacht; it will be necessary to add a keel, mainmast, bowsprit, &c., to finish the craft. Fix in position by means of sealing wax.

92. Reversing the Rotation

Warehouses are obviously the most promising targets but incendiary sabotage need not be confined to them alone. Whenever possible, arrange to have the fire start after you have gone away. Use a candle and paper, combination, setting it as close as possible to the inflammable material you want to burn: From a sheet of paper, tear a strip three or four centimeters wide and wrap it around the base of the candle two or three times. The colors appear different to different people, and are changed by reversing the rotation.

Cards from a Tapered Deck.

Figure 218
Some Hints on Using Tools. (Fig. 218) A cheap deck of cards is evened up square, fastened in a vise and planed along the edge in such a manner that all the pack will be tapered about 1/16 in. This taper is exaggerated in the illustration which shows one card that has been turned end for end. How to Hold a Hammer. Never use a hammer on wood-work of any kind.

When you use a mallet as for driving chisels hold it rather close to its head, and need I tell you never to use a wooden mallet to drive nails with. How to Use a Saw. To start the saw put it on the mark where you want to saw the board and rest your thumb against the side of it to guide and steady it.

It is evident that any card reversed in this way can be easily separated from the other cards in the pack, which makes it possible to perform the following trick: The performer spreads the cards out, fan-like, and asks an observer to withdraw a card, which is then replaced in any part of the pack. Twist more sheets of paper into loose ropes and place them around the base of the candle.

Figure 219
Stand so that your eye will look down the back of the saw and don't hold it too straight but at an angle of 45 degrees, that is half way between the horizontal and the vertical. (Fig. 219)

Of course this does not apply to a back saw or a keyhole saw. After thoroughly shuffling the cards the performer then holds the deck in both hands behind his back and pronouncing a few magic words, produces the card selected in one hand and the rest of the pack in the other. When the candle flame reaches the encircling strip, it will be ignited and in turn will ignite the surrounding paper.

93. The Preceding Chapters

All you will have to do in making. The cypress is a large deciduous tree occupying much of the swamp and overflow land along the coast and rivers of the Southern States. This maneuver generally disarms all suspicion, for the picker-up is sure to examine it very closely.

Figure 220
I have only given mere outlines of this really excellent trick, which may be varied in a hundred ways, and is capable of combination with other tricks to a large extent. (Fig. 220)

For the pedal may be substituted a lever running immediately under the surface of the table, if the performer prefers to have a short cloth on it. There should be always two cloths on the table; the lower one thick and soft, to prevent jingling of objects, and the upper one white, as it displays everything better than a colored one. Usually it is stiff, quite strong, of even texture and more or less resinous.

The sapwood is yellowish white; the heartwood, orange brown. A Wardrobe will be to fasten some small hooks inside of a cigar-box, attach the cover with a strip of linen—the same way it was attached before you soaked it off—and hang a mirror on the front. These pieces of furniture were designed for separate sets, and would not do for doll-houses the size of those in the preceding chapters, unless the boxes were cut down to smaller proportions.

Figure 221
Cigar-boxes are splendid material for a variety of home-made toys. (Fig. 221)

94. During the Boiling

Fasten a pulley 4 or 6 in. Connect the nozzle to a water faucet by means of a piece of hose; place the outlet over a drain, and belt the motor direct to the washing-machine, sewing machine, ice-cream freezer, drill press, dynamo or any other machinery requiring not more than 1/2 hp. This motor has been in use in our house for two years in all of the above ways, and has never once failed to give perfect satisfaction. It is obvious that, had the wheel and paddles been made of brass, it would be more durable, but as it would have cost several times as much, it is a question whether it would be more economical in the end. If sheet-iron is used, a coat of heavy paint would prevent rust and therefore prolong the life of the motor. The motor will soon pay for itself in the saving of laundry bills.

At the end of this time they are perfectly clean, and I have noticed that they wear twice as long as when I sent them to the laundry. Making a Silhouette with the Camera. Serves five or six persons.

Patterns for the Automobile Touring-car.

Figure 222
Boil the mixture for five minutes, or until a few drops will jelly on a cold plate if allowed to stand a few minutes. (Fig. 222) Skim the jelly several times during the boiling. Turn it into a buttered, one-quart mould, boil in a large cooker pail of water for one-half hour and put it into a cooker for five hours. Serve it with warm apple sauce and Hard Sauce.

Serves six or eight persons. The bent edges of these pieces are shown by dotted lines in the illustration. You can cut out between the spokes, if you wish, or leave them solid. The guards should be placed a little above the tops of the wheels. A strip of cardboard about the size of that used for the upright of the steering-wheel should be cut for.

The Chauffeur should now be made. Paint the hat, coat, sleeves, and gloves a leather color, and the face flesh color. By thus attaching the body to the end of the hammer, and winding up the small spring, the chauffeur will shake violently when the auto runs across the floor, showing the vibrations of the machine in a greatly exaggerated and amusing manner.

Figure 223
When it is done, pour it into glasses, and seal it, when cold, as directed for apple jelly. (Fig. 223) Bring them to a boil with the water and put them into a cooker for one or two hours or more. Mash them through a fine strainer or sieve, measure the pulp and add equal parts or three-quarters of the amount in sugar.

Screw the toy motor to the cigar-box with its pulley directly in line with the upper shaft pulley. Two Home-made Battery Cells Connected in Series. Two glass tumblers to hold the solution, a pair of battery zincs, a pair of carbons, and a bi-chromate of potash solution, are needed. Twisting the connecting wires into coils, as shown, is a good method of taking up the slack.

95. Containing the Handkerchiefs

Take two strips of stout cloth, about 8 or 10 in. If you have access to a printer's paper knife, trim both ends and the front edge; this makes a much nicer book, but if the paper knife cannot be used, clamp the whole between two boards and saw off the edges, boards and all, smoothly, with a fine saw. Cut four pieces of cardboard, 1/4 in.

Figure 224
Lay one piece of the board on the book and under the cloth strips. (Fig. 224)

Use ordinary flour paste and paste the strips to the cardboard and then rub paste all over the top of the strips and the board. There is quite a variety of scales. Let it be observed, in reference to the first experiment, that a number of handkerchiefs are collected in the early part of the evening for various illusions, and that many of them appear for a time on the performer's table.

Provided with a collection of these articles, from the handsome silk handkerchief to one trimmed with lace, used by a fashionable lady, he could easily substitute his own of the same kind for those of his auditory, as the curtain falls, according to the arrangements of the evening, between the collection of the handkerchiefs and the subsequent processes. His own handkerchiefs, therefore, are washed and placed in the vase already described; and the so-called change into flowers is nothing more than the retention of the handkerchiefs in the lower part of the apparatus, which the figure illustrates, while the upper part holds the flowers till they are scattered among the spectators.

Figure 225
Meanwhile, all that is required is done to their handkerchiefs. (Fig. 225) It is not absolutely necessary that they should be washed; for folding, pressing, and a little eau-de-Cologne, would complete the preparation; but granting that they are washed, there is still no difficulty, though this mystifies the spectators, who have the idea that drying is a long affair; for it may be effected in a minute or two by a machine that is readily obtained. The box brought out has them deposited in it, but as it is double, one interior is first shown, which, of course, contains nothing, for the inner drawer holding the handkerchiefs remains in the case; but when a few sounds are uttered, and the professor touches a secret spring behind, which disengages the inner box, he draws it out with the outer one, and presents the handkerchiefs to the audience.

In the diagram A., the box is shown as empty. Rub paste over one side of another piece of board and put it on top of the first board and strips, pressing down firmly so that the strips are held securely between the two boards. Turn the book over and do the same with the other two boards. Whatever scale is used, the numbers placed upon the drawing must represent the size of the object and not of the drawing. It will be seen that there are different kinds of lines.

Same width as 2. Same width as 1. At B., we have a representation of the box containing the handkerchiefs.

Figure 226
It is only necessary to add that the box is very nicely made; the part within the other drawn out to the end, defies detection. (Fig. 226)

The flames of combustible gases from various sources are differently affected, both by the nature of the combustible and by the nearness of the poles. Effect of magnetism on candle-flame between the poles of the magnet. It was these experiments that led to the important discovery of the paramagnetic property of oxygen, and proved in a decided manner that gaseous bodies when heated became more highly diamagnetic. A coil of platinum wire heated by a voltaic current, and placed beneath the poles of Faraday's apparatus, occasioned a strong upward current of air; but directly the magnetic action commences the ascending current divides, and a descending current flows down between.

96. Wetting the Calico

Monteith, of Glasgow, by pressing together many layers of silk with leaden plates perforated with holes; a solution of chlorine was then poured upon the upper plate, and pressure being applied it penetrated the whole mass in the direction of the holes, bleaching out the colour in its passage. The pieces of board may be squeezed together in any convenient way, either by weights, strong vulcanized india-rubber bands or screws, and when a strong solution of chlorine gas or of chloride of lime is poured into the hole and percolates through the cloth, the colour is removed, and the part is bleached almost instantaneously by first wetting the calico with a little weak acid, and then pouring on the solution of chloride of lime.

Figure 227
On removing and washing the folded red calico it is found to be bleached in all the places exposed to the solution, and is now covered with white spots. (Fig. 227) This is due to the action of the sun in attracting more nourishment to one side than to the other. Circular hole in the upper piece of wood, a similar one being perforated in the lower one.

Now, suddenly turn the back of your left hand uppermost, and as your wrist moves in your right hand, stretch out the forefinger of your right hand, and as soon as the wood comes undermost, support it with such forefinger. Surrounding the sapwood is the bark. A solution of phosphate of ammonia with sal ammoniac answers much better. Light a stick, and whirl it round with a rapid motion, when its burning end will produce a complete circle of light, although that end can only be in one part of the circle at the same instant. You may now shake the hand, and, after a moment or two, suffer the wood to drop.

Figure 228
It is two to one but the spectators will suppose it to be produced by the action of the air, and try to do it themselves; but, of course, they must, unless you have performed the feat so awkwardly as to be discovered, fail in its performance. (Fig. 228) In making a pair of skis, select two strips of Norway pine free from knots, 1 in. Try to procure as fine and straight a grain as possible.

The pieces are dressed thin at both ends leaving about 1 ft. The strong india-rubber bands. The bleaching solution is poured into a.. Symbol, I; combining proportion, 127.1; specific gravity, 4.948.

97. Dipping the Article

It must not be heated enough to color it but just so that when you place your moistened finger to it it will sizzle; now put on the lacquer and this can be done by brushing the article over with a camel's hair brush or by dipping the article into the lacquer.

Figure 229
How to Make the Lacquer. (Fig. 229) Let it stand for a week or 10 days and shake it often; pour the clear liquid into a bottle and put in 3 ounces of yellow shellac; let it stand for a couple of weeks more; shake it often and pour off carefully.

Take a piece of tracing-paper or any thin transparent paper, and place it over the pattern and make an exact copy; then rub a soft lead-pencil over the other side of the paper, turn the paper over with the blackened side down, and transfer the drawing six times upon a piece of lightweight cardboard. Draw this out upon a piece of cardboard, cut it out and fold along the dotted lines, then turn in the flaps and glue them to the dashboard and to the back. Then make another sleigh similar to the one just completed, for two are required for the merry-go-round. Put two quarts of vinegar and about ten quarts of water in a stone or crockery vessel, with four cloves of garlic, a handful of parsley, six cloves, four stalks of thyme, four bay-leaves, half a nutmeg grated, three or four carrots, and three or four onions sliced, a little salt, and two dozen pepper-corns.

Paint the sleighs green or yellow with trimmings of a lighter shade. Pattern for the Merry-go-round Sleighs. The Shafts upon which the horses and sleighs are mounted.

Figure 230
A Completed Sleigh showing Attachment to Shaft. (Fig. 230) Make tracings from the patterns as you made that of the horse and prepare four girls and six boys. Paint their clothes in bright colors.

Cut a slit in each seat of the sleigh and stick the flaps on the girl riders in them. Stir and mix the whole well, and it is ready for use. In finishing with wax the following directions may be followed: Stain the wood, if a very dark finish is desired.

If the wood is coarse-grained, put on two coats of paste filler and rub it off carefully, that a smooth surface may be prepared. Allow the stain twelve hours in which to dry, also each coat of the filler. With a soft cloth apply as thin a coating of wax as can be and yet cover the wood.

Pieces of mutton, beef, pork, venison, and bear-meat, may be soaked in one of the above preparations from four to six days before cooking them. A piece of tough meat will be more tender and juicy after being soaked.

Figure 231
How the Second Leg of the Boy is Attached. (Fig. 231) Full-size Pattern for the Girl Riders. Full-size Pattern for the Boy Riders. Punch a hole through the center of this disk large enough for the peg connecting spools D and E to slip through.

98. A Remarkable Circumstance

To cause the staff to open, grasp the handle tightly and "shoot" it out with its point towards the floor for a moment; this is a very important point, because if you are performing in a room you may, in the excitement of the moment, do someone a serious injury if you merely "shoot" out the flag towards the audience. The flagstaff should be of the kind known as "self-locking"; that is to say, when every joint is out the staff can immediately be raised to a vertical position without any fear that the staff will collapse; it will remain rigid until you wish to close it. Wipe the meat clean with a damp cloth. It is, however, a remarkable circumstance, that if you strike a magnet its magnetizing force will be either very much impaired, or altogether destroyed. Percussion and friction in the required position would seem, from this and preceding experiments, to be the chief means of magnetizing iron and steel. These operations, as it were, waken up the inert particles of the metal to admit new magnetism, or to develop that which already resides in it, originally derived from the earth.

Figure 232
The same influence which affects the magnetic needle already described, will also communicate magnetism to soft iron. (Fig. 232) Dredge it well with salt, pepper, and flour, put it into a dripping pan, and cook it in an insulated oven heated as directed for roasts of meat on page 225. Wave the flag, allowing the other flags to fall from your hands to the floor, and if you do not finish your performance to loud applause the fault will not be yours.

This trick must be frequently practiced before it is produced in public. Wash the fruit very thoroughly. If it is first soaked for five minutes and then washed, it will clean more thoroughly. To each cupful of fruit add two cupfuls of water and let it soak for at least six hours. It is better if soaked ten hours. Add the sugar and bring all to a boil. Cut square fillets of bacon, which dredge in a mixture of chopped parsley, cives, salt, pepper, and a little allspice; lard the tongue with the fillets.

Put in a crockery stewpan two ounces of bacon cut in dice, four sprigs of parsley, two of thyme, one of sweet basil, two bay-leaves, a clove of garlic, two cloves, two carrots cut in pieces, four small onions, salt, and pepper; lay the tongue on the whole, wet with half a glass of white wine and a glass of broth; set on a moderate fire, and simmer about five hours—keep it well covered; then put the tongue on a dish, strain the sauce on it, and serve.

Figure 233
It is a delicious dish. (Fig. 233) It may also be served with vegetables around, or with tomato-sauce. When prepared as above directed, put it on the fire with the same seasonings as the preceding one; simmer four hours and take from the fire; put the tongue on a dish and let it cool, then place it on the spit before a good fire, and finish the cooking; serve it warm with an oil, or piquante sauce. If any is left of either of the two, put in a pan the next day, wet with a little broth, set on the fire, and when warm serve it on a purée; do not allow it to boil.

99. The Bridle Underneath

Only three pieces are required, and as they are simple in design, anyone can cut them out with a saw, plane and pocket knife. A good substitute for a shoe horn is a handkerchief or any piece of cloth used in the following way: Allow part of the handkerchief or cloth to enter the shoe, place the toe of the foot in the shoe so as to hold down the cloth, and by pulling up on the cloth so as to keep it taut around the heel the foot will slide into the shoe just as easily as if a shoe horn were used. In building a photographic dark room, it is necessary to make it perfectly light-tight, the best material to use being matched boards. These boards are tongued and grooved and when put together effectually prevent the entrance of light. Coat the lashings with glue after winding them, and the thread will hold its position better.

The cloth or paper bands should be fastened to each horizontal frame stick with two tacks placed near the edges of the bands.

Figure 234
There are several methods of. (Fig. 234) In heating the soldering iron keep it near the tip of the flame; if you use an alcohol lamp don't have the wick too high and if you use a Bunsen burner adjust the openings in it until the flame is as nearly invisible as you can get it. Of course, the kite is flown other side up, with the bridle underneath.

The next important thing to be considered is to make it weather-tight, and as far as the sides are concerned the matched boards will do this also, but it is necessary to cover the roof with felt or water-proof paper. The best thickness for the boards is 1 in., but for cheapness 3/4 in. The dark room shown in the accompanying sketch measures 3 ft. The ends of the bridle should be brought together and tied at a distance of about 3 feet from the kite.

100. Unmaking a Magnet

Of course, if you are performing with a borrowed pack of cards you will have to seize your opportunity to do this when the attention of the audience is directed to another trick, or you can do it before your performance begins.

Figure 235
Now, pick up the two top cards together and hold them in the right hand in the way described, with the face of the lower card towards the audience. (Fig. 235) Whip-tops and peg-tops of several varieties can be purchased at the corner candy store, but the kinds I am going to show you how to make cannot be bought anywhere. Thus, supposing the bath to have been full of water, directly Archimedes stepped in, it would overflow. Let it be assumed that the water displaced was collected, and weighed 90 pounds, whilst the philosopher had weighed, say 200 pounds.

Now, the train of reasoning in his mind might be of this kind:—"My body displaces 90 pounds of water; if I had an exact cast of it in lead, the same bulk. and weight. Elkington, the celebrated electro-platers of Birmingham. For convenience, the pan of one scale is suspended by shorter chains than the other, and should have a hook inserted in the middle; upon this is placed the crown, supported by very thin copper wire. The rule may now be worked out: Ounces.

Figure 236
It was, however, discovered that they soon became inefficient, from the circumstance that the repeated blows received by the iron so altered its character, that it eventually assumed the quality of steel, and had a tendency to retain a certain amount of permanent magnetism, and thus to interfere with the principle of making and unmaking a magnet. (Fig. 236) You will understand, of course, that to the audience these two cards must appear to be one card.

When you take the glass with your left hand and try to balance it on the top of the card the back of the left hand is towards the audience and the hand nearly covers the whole of the card. How to Hold Upholstering Tack for Spinning. It was this fact that induced Professor Jacobi, of St. Petersburg, after a large expenditure of money, to abandon arrangements of this kind, and to employ such as would at once produce a rotatory motion. The engine thus arranged was tried upon a tolerably large scale on the Neva, and by it a boat containing ten or twelve people was propelled at the rate of three miles an hour.

101. Stirring the While

Prepare as above, and serve either warm or cold with a cream-sauce. When prepared as above, place it on a dish, and keep it in a warm place.

Figure 237
Put four ounces of butter in a frying-pan, and on a good fire; when turning brown, add three sprigs of parsley, fry about two minutes, pour the whole on the fish, and serve. (Fig. 237) Elkington, the celebrated electro-platers of Birmingham. You may also pour on it a hot caper-sauce, and serve.

Heat the pan and meat a little before putting it in the oven. Prepare and cook as directed, three pounds of cod; take the bones out, break in small pieces, and mash with the hand as much as possible; put it then in a stewpan, beat three yolks of eggs with two tablespoonfuls of cream, and mix with the cod; set on a slow fire, and immediately pour in, little by little, stirring the while, about one gill of sweet oil; simmer ten or twelve minutes, and serve with croutons around. Lay three pounds of cod on a dish, after being cooked as directed; keep it warm, spread a maître d'hôtel sauce on it, and serve.

Prepare about three pounds of cod as directed above. Drain away all fat from the pan, leaving the brown sediment. Lay the fish on a dish; have a piquante sauce ready, turn it over it, and serve with steamed potatoes all around the dish. For convenience, the pan of one scale is suspended by shorter chains than the other, and should have a hook inserted in the middle; upon this is placed the crown, supported by very thin copper wire. The rule may now be worked out: Ounces.

102. The Extremities Covered

Figure 238
It consisted of seventeen plates of thin mica, each five inches by four, coated on both sides with tinfoil within half an inch of the edge. (Fig. 238) They were arranged in a box with a glass plate between each mica plate, all the upper sides were connected by strips of tinfoil to one side of the box, and all the under surfaces in the same manner with the opposite extremity of the box. Eclipses of the sun are of three kinds—partial, annular, and total. Many persons have probably seen large partial eclipses of the sun, and may possibly suppose that a total eclipse is merely an intensified form of a partial one; but astronomers assert that no degree of partial eclipse, even when the very smallest portion of the sun remains visible, gives the slightest idea of a total one, either in the solemnity and overpowering influence of the spectacle, or the curious appearances which accompany it. Even educated astronomers, when viewing with the naked eye the sun nearly obscured by the moon in an annular eclipse, could not tell that any part.

During the continuance of a total eclipse of the sun, we are permitted a hasty glance at some of those secrets of Nature which are not revealed at any other time—glories that hold in tremulous amazement even veteran explorers of the heavens and its starry worlds. This line, if lightly made, should be half planed off.

Figure 239
As the line is parallel with the face edge, no straight edge test is necessary. (Fig. 239) The try-square test for squareness, the beam being held against the face side, must be frequently applied when approaching the gage line. Then grease the paste-board slightly with butter, put a teaspoonful of the mixture here and there on it, roll and make small balls of it, drop them in boiling broth or water, boiling about fifteen minutes, and take off with a skimmer.

Dip the chops in melted butter, then in beaten eggs, and roll in bread-crumbs; fry them with a little butter. Fry the balls also. Place the chops on the dish, the bones toward the edge, and the balls between the chops; serve warm.

A few balls may be placed in the middle. They were charged like an ordinary Leyden battery. If the glass plate coated with tinfoil is charged, and then placed upright on a stand, it may be slowly discharged by placing a bent wire on the edge with the extremities covered with pith balls. The wire balances itself, and continues to oscillate with noise until the electricities of the two surfaces neutralize each other.

Figure 240
Glass plate or stand coated with tinfoil on each side, b. (Fig. 240)

103. Splitting the Board

For the base board any piece of wood about a foot long, 5 in. For the upright standard you require a piece of wood about 9 in. The method of doing this will depend very largely on your degree of proficiency in the art of carpentry. The thumb-screw should be released so that the legs may be moved without much effort.

When the approximate setting has been secured, use the thumb-nut for adjusting to more accurate measurement.

Figure 241
They should be leaned forward slightly and an effort made to secure a sharp, light line. (Fig. 241) For most work the two legs may be sharpened to points. If you know how to make a mortise and tenon joint, that will be the most suitable.

Sometimes one is sharpened like a knife point. If you cannot attain to that, then perhaps you can make a hole just as large as the standard, and sink the standard in the base. Before you do this, however, there is something to be done to the other end. You must cut a slot 1/2 in. Pencil lines should be carefully made, however. The illuminator showing the tin reflector in it.

Figure 242
To support this on the metal V pieces you will need a thin piece of steel—such as a piece of an old pocket-knife blade. (Fig. 242) Remember, it must fit tightly; so when you cut the slot for it, do not make it too wide. The pencil may be used also in marking bevels, curves and in other places where the knife or gage mark would be injurious. For the scale pans two canister lids will do quite well. If, when you have completed the work, the beam does not hang perfectly horizontal, then you must add weight or subtract weight from one side or the other. You can do this by paring off tiny pieces from the end of the beam, or you can stick on dabs of sealing wax till the correct balance is obtained.

If you cannot get any proper weights, then it is not a very difficult matter to make some. The stand for holding the bromide paper.

Figure 243
With a stick slightly smaller than the hole, place glue upon the sides of the hole, and drive the dowel in. (Fig. 243) A small V-shaped groove previously cut along the side of the dowel will allow the surplus glue to escape and thus prevent any danger of splitting the board. Clean off the surplus glue, unless the members can be placed together before it has had time to set.

Saw off the dowels to a length slightly less than the depth of the holes in the second piece. Trim off the sharp arrises. Glue the holes and the edge of the second board. Put the two members in the clamps and set away until the glue has had time to harden.

Figure 244
To do this, all that you need is to get some cardboard and a supply of sand, and to borrow a complete set of weights. (Fig. 244) First of all make a number of little cardboard cubes, having sides varying from 3/4 in.

104. Containing the Solution

This illustration may be modified by using a heavy weight, rope, and stick, as shown in our sketch below. There is a feat, however, which does not require any very great strength, but is sufficiently startling to excite much surprise and some inquiry—viz., the one of cutting in half a broomstick supported at the ends on tumblers of water without spilling the water or cracking or otherwise damaging the glass supports. These and other feats are partly explained by reference to time: the force is so quickly applied and expended on the centre of the stick that it is not communicated to the supports; just as a bullet from a pistol may be sent through a pane of glass without shattering the whole square, but making a clean hole through it, or a candle may be sent through a plank, or a cannon-ball pass through a half opened door without causing it to move on its hinges.

But the success of the several feats depends in a great measure on the attention that is paid to the delivery of the blows at the centre of percussion. Next procure what is known as a wire connector.

Figure 245
This is a piece of copper tube about 1-1/2 in. (Fig. 245) The upper screw is to connect the battery wire, the lower one to raise and lower the zinc.

It may be better understood by reference to our drawing below. Applying this principle to a model sword made of wood, cut in half in the centre of the blade, and then united with an elbow-joint, the handle being fixed to a board by a wire passed through it and the two upright pieces of wood, the fact is at once apparent, and is well shown in Nos. At this point the glass in the top appears clear which indicates that the granules slide off instead of sticking to the top. Proceed as follows: In 32 oz.

When the bichromate has all dissolved, add slowly, stirring constantly, 4 oz. Do not add the acid too quickly or the heat generated may break the vessel containing the solution.

Figure 246
Then pour the solution into the battery jar, until it is within 3 in. (Fig. 246)

When a blow is not delivered with a stick or sword at the centre of percussion, a peculiar jar, or what is familiarly spoken of as a stinging. The post to which a rope is attached. But if the obstacle were placed so as to be struck at a certain point nearer c., viz., at or about the little star, the tendency of each horse to move on would balance and neutralize the other, so that there would be no strain at a.. The little star indicates the centre of percussion.. All military men, and especially those young gentlemen who are intended for the army, should bear in mind this important truth during their sword-practice; and with one of Mr. Wilkinson's swords, made only of the very best steel, they may conquer in a chance combat which might otherwise have proved fatal to them.

105. A Sharp Knife

Set it at once into the cooker for one hour. These parts are numbered from one to six in each quarter beginning at the outside corners and following in the same order in each quarter. Larger fish may be cooked in the same way if more water is used. Cut out one rectangle of each number with a sharp knife, distributing them over the whole card.

Figure 247
The two key cards are made alike. (Fig. 247) For instance, a four-pound fish should be put into five or six quarts of water.

In similar fashion you can proceed to make all the different weights that you are likely to require, from 1/2 oz. While not very substantial, these little weights will last quite a long time, if they are handled with care. Engines of all sorts are always fascinating to boys and girls, and later on we shall describe some excellent ones.

The sketch shows an easily made, quick-working wood vise that has proved very satisfactory. The usual screw is replaced by an open bar held on one end by a wedge-shaped block, and the excess taken up on the other end by an eccentric lever. At this point we wish to describe what is possibly one of the simplest forms of engine known, and certainly one of the earliest.

106. The Difficulties Increase

For this a large empty match tray is required. Across the under side a short length of match stale is glued, to act as an axle for the two wheels.

Figure 248
It is well not to attempt building a very large one, as the difficulties increase with the size. (Fig. 248)

These can be cut from either veneer or cardboard. A good plan is to cut out a circle in fairly stiff cardboard, and glue a covering of veneer on each side; this adds to the appearance of the wheel and makes it stiffer. If veneer alone is used, two circles must be cut out for each wheel, and glued together with the grain at right angles.

The wheels should be fixed in position with doll pins. The other piece with one hole is fastened to this piece to hold the ironing board in position. First buy one length of 3/4 by 1/8-in.

Figure 249
This can be obtained at any steel shop and should cost about 20 cents. (Fig. 249) The beveling may be done by roughing out with a hacksaw and finishing with a file. After all the pieces are cut and beveled they should be drilled at the ends for the 3/16-in. The covering may be made of cotton flannel or an old blanket.

Drill all the horizontal pieces, B, first and then mark the holes on the upright pieces, A, through the holes already drilled, thus making all the holes coincide. Fasten together the members of the bays, also the inside partitions, with glue and brads. These bands should project about ¼ inch below the bottoms of these boxes, so as to set down over the boxes beneath. For the tilt a piece of veneer bent over and glued to the inner sides of the match box will do quite well.

Figure 250
All that remains is to supply the shafts. (Fig. 250)

107. The United States

Both philosophers returned safely to the earth. "   Sheldon—gas balloon. "   Harris—gas balloon—killed.. If the two were hanging near each other, as pendulums, they would approach and meet, but the little one would perform more of the journey in proportion to its littleness. Cocking—parachute from gas balloon—killed..

Godard—Montgolfier balloon fell into and extricated from the Seine. A pounded steak may appear or taste more tender to a person not knowing or never having tasted a good steak, but an experienced palate cannot be deceived. Par fer Cesar jadis devint si grand prince.

Figure 251
The longer they are simmered, the better the taste. (Fig. 251) This feat is really an excellent one, and has astonished crowds of spectators in different parts of the United States.

Proceed as with carrots in every particular. It is always made with turnip-rooted celery. In the earlier receiving instruments a coherer was used, consisting of a glass tube about 1/8-in. This receiver was difficult of adjustment and slow in transmission. An instrument much less complicated and inexpensive and which will work well can be made thus: Take a 5-cp.

This can be done by giving the glass tip or point a quick blow with a file or other thin edged piece of metal. Make a solution of 1 part sulphuric acid.

Figure 252
This will make an excellent receiver. (Fig. 252) For a mile or less the points should be about 1/16 in. After winding, carefully scrape the insulation from one side of the coil, in a straight line from top to bottom, the full length of the coil, uncovering just enough to allow a good contact for the sliding piece.

Clean the celery well, wash and cut it in pieces, and prepare as purée of carrots, adding a teaspoonful of sugar. Separate the branches, and throw them in boiling water and salt; boil two minutes and drain. The tuning is done by sliding the contact piece, which is made of light copper wire, along the convolutions of the tuning coil until you can hear the signals. The signals are heard in a telephone receiver, which is shown connected in shunt across the binding posts of the lamp holder with one or two cells of dry battery in circuit, Fig.7.

Figure 253
To work a 20-mile distance the line should be 100 or 150 ft. (Fig. 253)

Source texts and figures:
  1. The Project Gutenberg eBook of Hand-book of Practical Cookery, for Ladies and Professional Cooks, by Pierre Blot.
  2. Essentials of Woodworking, A Textbook for Schools | Project Gutenberg
  3. The Project Gutenberg eBook of The Fireless Cook Book, by Margaret J. Mitchell.
  4. The Project Gutenberg eBook of Water Wizardry, by Arthur Ainslie.
  5. The Project Gutenberg eBook of The Magician's Own Book or The Whole Art of Conjuring, by Dick and Fitzgerald.
  6. The Project Gutenberg eBook of Home-made Toys for Boys and Girls, by A. Neely Hall.
  7. Handicraft for Boys | Project Gutenberg
  8. The Project Gutenberg eBook of Toy-Making at Home, by Morley Adams
  9. The Boy Mechanic. Vol. 1
  10. The Project Gutenberg eBook of Hand-book of Sanitary Information for Householders, by Roger S. Tracy, M. D..
  11. The Project Gutenberg eBook of /* The Boy's Playbook Of Science:, by John Henry Pepper.
  12. Home Labor Saving Devices | Project Gutenberg
  13. The Project Gutenberg eBook of Simple Sabotage Field Manual, by Office of Strategic Services