AN EASY PROOF FOR SUMS IN MULTIPLICATION.
As boys are always interested in short cuts in arithmetical processes,
it may be well to insert for the benefit of those who are studying
multiplication, a method of proving their examples which I learned a
short time ago from an old banker of New York. This rule is simply to
add the digits of both multiplicand and multiplier, divide both answers
by 9, and multiply the remainders; divide this product by 9 and the
remainder will be, if the example is correct, the same as that obtained
by adding the digits of the product and dividing that answer by 9. For
instance, suppose after multiplying 4359 by 2786 we have 12144174 for
the answer; now instead of performing this operation over a second time
to make sure our answer is correct, we simply add the digits in 4359 and
divide the sum 21 by 9, we find we have 3 left. As it is the only
remainder we have to deal with, we need not keep the other figures. By
adding the digits in the multiplier we obtain 23, which divided by 9
gives 2 and 5 remainder. Now, multiplying the first remainder by the
second we have 15: this product divided by 9 gives 1 and 6 remainder. If
the product 12144174 is correct, the sum of its digits divided by 9 will
leave 6 for a remainder. Performing the operation, we find the sum of
its digits is 24, divided by 9 equals 2 and 6 remainder. As both the
remainders correspond, the answer was correct. After a little practice
you will find you can prove your examples very quickly by this method,
and where a number of sums are given without the answers it will be of
invaluable assistance, besides saving you a great amount of labor.
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THE SELF-RECTIFYING DART.
[Illustration]
The dart, and its larger brother the javelin, were among the earliest
weapons used in warfare, and were very skilfully thrown, not only by the
Roman soldiers, but by the Goths and other savage tribes who lived in
the regions north of them.
These javelins were large affairs, measuring some six or seven feet in
length; the handle, a tough piece of wood, was generally four and
one-half feet in length, and an inch in diameter, while the rest of the
length was taken up by the barbed triangular-shaped head.
Ever since those days children of all nations and climes have made toy
implements, resembling those in general appearance, but varying much in
size and materials used.
[Illustration: Fig. 1]
[Illustration: Fig. 2]
The little dart described below is perhaps the tiniest and least
formidable of them all; but even this should not be carelessly tossed
about the room in which others are playing; when, however, thrown in the
open air, and away from others who might be hurt, there is considerable
amusement derived from the airy bit of flying wood, which always comes
down with such unerring certainty upon its spear-like head. To make this
dart, take half a sheet of note-paper, double it diagonally across, so
that its top edge may fall evenly upon that of one side (see Fig. 1),
and cut off the surplus piece of paper which remains uncovered at the
bottom of the page. Open your square, and fold it again in the other
diagonal line _c_, _d_ (the first is represented on Fig. 2, as _a_,
_b_). Now, opening again, fold upon the line _e_, _f_, then, after
opening, upon _g_, _h_. Crease all the folds as you make them. Now,
having prepared your handle, which consists of a piece of wood about 8
inches long and the size of a lead pencil, cut across one end at right
angles, with slits nearly or quite an inch in depth; take your paper and
open it flat once more. Fold the diagonals so that the four points, _a_,
_b_, _c_, _d_, shall all meet together above _x_, and the lines _ax_,
_bx_, _cx_, and _dx_ shall meet at the central line of the figure, and
the four shorter lines, _ex_, _fx_, etc., form the outside edges of the
figure. Insert a tiny wedge or knife-blade at the bottom of the slits,
and press the paper down in the opening, bringing the folded edges
through each of the four slits; remove the wedge, and the paper will be
firmly held in its place. Insert a needle or headless pin in the other
end of the wood, and the dart is ready for use.
―――――◀▶―――――
THE BALANCING PIN.
This amusing feat I first saw performed in our little district
school-house, many years ago.
[Illustration]
One morning, while the teacher was busy with his class at the
blackboard, one of the boys drew an old clay pipe-stem from his pocket,
and producing a small green gooseberry and a pin from some other part of
his clothing, gave us boys to understand that he was about to perform
some wonderful trick with them. We were of course all attention, and as
the teacher’s back remained turned toward us, he proceeded to astonish
us with his remarkable feat. He first stuck the pin through the
gooseberry, and then let it fall, point downward, into one end of the
pipe-stem; then, placing the other end to his mouth, and holding his
head thrown well over backward, he blew into the opening, and the
gooseberry and pin arose quite clear of the tube, and began dancing and
balancing above it in a very funny way. How long it would have continued
its gyrations I cannot tell, probably until his breath gave out, but
just then a little boy in the front row made some exclamation, and
straightway the teacher’s head came around, the pipe-stem, pin, and
gooseberry went on a voyage of discovery out of the school-house window,
and the boy got a thrashing for his pains. But the feat was often
performed by us all after that, and some years later, when a second
generation of boys were having over again the tricks and sports their
older brothers had outgrown, I saw the same principle applied under more
favorable conditions. Instead of the straight pipe-stem, which
necessitated throwing the head over backward, to insure its
perpendicular position, a tube bent at a right angle near one end was
used, and the balancing of the pin could be much more easily watched by
the performer. Instead of the gooseberry, a currant, pea, or any light,
round fruit can be substituted, and a small glass tube may take the
place of the pipe-stem.
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A BOX-SLED FOR BABY.
Procure a deep, smooth soap-box, and decide how high you wish the back
and front to be; then take a piece of brown paper, the exact size of the
sides of the box, and mark on it a curve, which shall unite the high
back with the low front. After this has assumed a perfectly satisfactory
form, cut it out and tack it on one side of the box. Mark the outline
carefully on both side-pieces, and saw the boards as indicated by the
line; cut the front straight across, and rasp and sand-paper the edges
till they are very smooth and well rounded. Next paint the box inside
and out, excepting the bottom, which is to be fastened to the sled, with
a thick coat of burnt umber, and give it a good drying. Then with
light-blue paint, make a narrow band, one-fourth of an inch wide,
entirely around each side, the back, and the front, about half an inch
from the edge. Stencil a pretty design on the back, and the name of the
little owner on each side; let this thoroughly dry, and finish with two
coats of varnish. A little seat can be fitted in the back part if
desired, but a pillow answers the purpose much better.
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A SET OF CARS.
Procure a stick of wood of any length, and an inch and a half square at
the ends. Saw it into pieces six inches in length, being careful to cut
it evenly, that the blocks may be rectangular in form. Round off the
tops slightly at the edges and paint them brown, then give the sides and
ends a good coating of yellow.
[Illustration]
If you have no oil paints, it would be a good investment to get a few
tubes, as they are not expensive, and are of invaluable assistance in
adding beauty and naturalness to many things a boy can make. For the
cars, a tube of chrome yellow, one of Indian-red, and one of black would
be needed, but as those are not over seven or eight cents apiece the
whole cost would be small. The windows can perhaps be most conveniently
put on by “stencilling.” To do this, cut a piece of stout paper or thin
cardboard the exact size of the side of the car, and mark the windows on
it in their proper places (see Fig. 2). Then cut out the windows thus
drawn with the point of a sharp penknife. Catch the card firmly upon the
surface by driving two or three fine pins through it into the wood.
Finally, with your brush moderately filled with the black paint, cover
all the yellow surface exposed through the openings; then remove the
card very carefully and one side of your car will be complete. After
painting the whole set, another long time will be needed for drying.
During the meantime obtain a few screw-eyes and hooks, and, when
perfectly dry, screw a hook into the left and an eye into the right end
of each car, join them into a train, and you will find you have a strong
set of cars with which your little brother can play to his satisfaction,
without a fear of breaking. The locomotive is more difficult to make,
but with a little care any boy of ten can be quite certain of success.
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THE TOY LOCOMOTIVE.
[Illustration: Fig. 1]
The thin ends of a common soap-box afford very good material for the
base of this locomotive, while the end of a curtain-roller makes a
capital boiler. The cab can be cut from a cigar-box, and a button-mold
will do for the boiler-head. First cut from the thicker wood a base in
shape like Fig. 1, and seven inches long by one and a half wide; with a
jackknife bevel it on either side of the pointed end to correspond to
the shape of the pilot, as shown in the cut. Saw the roller even at
either end just four inches in length. Next cut from a solid block of
wood a smoke-stack three inches high and an inch in diameter across the
top. The cab is cut from the cigar-box wood, and consists of a front
like _a_, two side-pieces like _b_, and a top like that seen in Fig. 1;
round off the edges of the top to give it a slightly convex surface like
the tops of the cars. Now, with brads, fasten these three parts
together. Then with a long, slender brass screw fasten the button-mold
and smoke-stack on front of the boiler. The screw should have as large a
head as it is possible to find, and should be long enough to extend half
an inch or more into the round section of wood or boiler. Cover the
whole, excepting the cab, with two thick coats of black paint, being
careful that the first is perfectly dry before the second is put on.
After the blackened surface is thoroughly dry and hard, put the red
stripes on the pilot, as seen in the cut: and for the brass bands around
the boiler use chrome yellow. The cab is painted Indian-red, and after
this is perfectly dry, the windows are painted on with black, as in the
cars.
[Illustration: 1]
[Illustration]
[Illustration]
The little ornamental lines on the cab are made with the yellow paint. A
large round-headed brass screw driven through a low flat spool (such as
is used for button-hole twist), into the top of the boiler in front of
the cab, makes a good steam-chest and whistle, and adds the finishing
touch to this indestructible little toy. If you anticipate making this
train of cars for a Christmas present, begin it in time, as paint dries
much more slowly in winter than in summer, and it is absolutely
necessary that each coat be perfectly dry before the next is applied.
Varnishing greatly improves the durability and appearance of the painted
surface. Shellac dissolved in alcohol makes the best varnish for this
kind of work. It should be made moderately thick, and if intended for
light-colored work, white shellac should be used, as the dark leaves a
slight stain upon the surface. I forgot to add in its proper place that
a brass button, caught in on top by a stiff wire, is made to represent a
bell. The wire should be first bent into the shape seen in the
illustration; the button then hung in position, and the wire finally
driven into the holes made to receive it.
The tender consists of a piece of wood the same width but only half the
length of one of the cars, and one inch high. This is painted black with
a narrow band of yellow running around the sides near the top, and is
fastened to the locomotive and car by means of the screw-eye and hook.
―――――◀▶―――――
A FREIGHT TRAIN.
The locomotive for this train can be made like the one already
described, and the cars are cut from a rectangular stick, in the same
manner as the passenger cars. These should receive a thick coat of
Indian-red paint, and if this does not cover well, that is, if any of
the wood shows through, another coat should be given. After the paint is
perfectly dry, put on one edge of the side, near the top, a number in
white, and two or three letters in the same color, to represent the
sides of the freight cars on different lines. If desired, the cars can
be painted different colors, and the side decorations copied from the
car you mean to represent. Give the whole a good varnishing with the
shellac dissolved in alcohol, and allow plenty of time to elapse before
the toy is used, for it to become perfectly dry and hard.
―――――◀▶―――――
A LOT OF PAPER WINDMILLS.
[Illustration]
Take a thin stick of wood a foot and a half or two feet long, and nail
to it four cross-pieces, graduated in length and six or seven inches
apart. The shorter, at the top, should measure about six inches. Cut out
of stiff, colored paper (the greater the variety the prettier the
effect) fifteen pieces, each three inches square, and slit each piece as
indicated by the diagonal lines in the figure. Out of pretty
tissue-paper cut three round pieces for each mill, about the size of a
silver dollar, and with a dull knife scrape their edges, that they may
slightly curl like the petals of a rose; crinkle them at the center if
intended for a rose, or from the edge toward the center if for asters or
marigolds, and thrust a large, strong pin through the middle of each
disk, drawing the flower well down over the head; then, bending the
opposite corners of each square of paper so that they shall all rest
over the central dot marked on each (Fig. 1), force the pin with the
flower on its head, down through the five thicknesses of paper, driving
it well into the wood of the frame. In doing this care should be taken
to avoid creasing the curved edges of the windmills. They are placed
upon the frame-work as indicated in the cut.
[Illustration]
Very pretty windmills are often made of only two shades, common
note-paper being used for the wheels, and a bright, rosy pink
tissue-paper for the flowers. Indeed, those made of common brown
wrapping-paper without any flowers at all give more satisfaction in a
light wind than the more elaborate ones described above.
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A WINTER GARDEN.
Most boys love flowers; and many families, especially in the country,
would keep more through the winter than they do, if they had the space
and time to devote to them, necessary for their preservation. A number
of pots, sufficiently large to hold good-sized plants, take up
considerable room; and no little time is required each day, to keep the
pots clean and the plants well watered. Now, boys, I have a suggestion
to make, which I intend for your ears alone. Why can’t you make a winter
garden, and, if necessary, take care of it through the season? It will
amply repay you for your labor, and do much toward brightening the home
life through the long dreary months, when everything without is covered
with ice and snow.
First procure a soap-box, the best and tightest you can find: if any
cracks are too wide to be easily closed with putty, nail laths over them
on the inside, line their edges, and, in fact, stop every seam and
crevice with good thick layers of putty. Next paint over the entire
inside with any colored pigment you may have, as it does not show when
the box is filled with earth, but simply aids in making it water-tight.
Now take four strong pieces of wood, about two and a half feet long;
smooth them well and sand-paper; be sure both ends are cut off evenly,
and that each leg is the same length as the other three, and, finally,
nail them firmly to the four corners of the box, letting the tops come
in line with its upper edge, and give the whole thing two good coats of
Indian-red. A very pretty stand is made by substituting the straight
trunks of young forest trees with their bark left on in place of the
smooth, painted legs; bore holes in the bottom of the legs and insert
casters, and finish by giving the entire outer surface a thick coating
of varnish. Then get a good wheelbarrow-load of fine leaf-mold, about
half that quantity of sand, and some common garden soil. Stir these well
together, and fill the box half full with the mixture, first covering
the bottom with pebbles, to secure drainage. Before this, however, bore
a hole with a good-sized gimlet in the bottom of the box, and fit a soft
pine peg to close it from the under side. When the plants are watered
this peg can be removed, and a dish placed beneath the opening to catch
the surplus water.
You are now ready for the plants. I find almost any garden plants thrive
well in this box, so any favorites you may have will soon make
themselves at home in these new quarters. It is well to put vines around
the edge, as they fall over, and their glossy green leaves and stems
form an agreeable contrast to the dark-red background of the box itself.
In my present winter garden I have German and Cenilworth ivy,
partridge-berry, and the common inch-plant for vines. In the center is a
large salvia, taken up so carefully that the great ball of dirt was not
shaken from its roots. On one side is a calla lily, and on the other a
feverfew of the large double variety. At the ends are fuchsias and
heliotrope, and scattered over the other available spots are verbenas
and petunias, sweet peas and lobelia; one or two fish-geraniums of
bright colors also found a place, and a little wood-violet nestled in
one corner has bloomed since early spring. A beautiful large purple
pansy, too, has been blooming all winter in another corner of the box.
Over this garden are two hanging-pots, one filled with pink oxalis, and
the other with a Chinese pink; both have contributed their full share of
blossoms during the entire season, and neither seems to tire of
well-doing. I must now tell you how to care for these beautiful pets,
for they must receive some attention, which, however, is very small when
compared with that required by their sisters in pots. First, always
water them with warm water (almost as hot as you can bear your hand in),
pour this around the roots in sufficient quantities to thoroughly
moisten the soil. A good rule to be observed in watering your plants is
to pour on the water until it begins to run out of the hole in the
bottom of the box. With such thorough wetting down they will not need
water oftener than twice a week, except when the sun is very hot, and
the moisture evaporates quickly. A little carbonate of ammonia added to
the water greatly improves their growth, and half-a-dozen grains of
permanganate of potash added once a fortnight to the warm bath turns
their foliage a rich dark green. With a whisk broom, sprinkle them once
or twice a week with water which is also warm, but not as hot as that
used on their roots; this operation takes but little time, scarcely five
minutes, and as the stand is on casters it can be easily moved to the
middle of the room, and each side can then receive its full share of the
washing. It is safe to predict that if any boy would make the stand, and
supply it with rich soil, his mother or some one of his sisters would
only be too happy to plant and care for the flowers it might hold.
―――――◀▶―――――
THE BOOT PUZZLE.
First take a piece of paper, double it, and cut from it a pair of boots,
the fold in the paper coming at the top of the boots, and consequently
joining them together. Then take another piece, fold it and cut it in
the form of Fig. 2, _a_ being the folded end. Fold still another piece
and cut it like Fig. 3, _b_ representing the folding side. Now open the
smaller piece, as in Fig. 4, and push the point _a_ through the opening
in its center (Fig. 5). Then put one boot through the loop of the long
arm, _c_, between _a_ and the smaller piece, which has been pushed
forward as far as it will go (Fig. 6). Now pull the smaller piece down
over _a_, and open the largest piece, and the boots are fastened on to
the larger paper in such a way that it is rather hard for the
uninitiated to extricate them.
[Illustration: Figs. 1, 2, 3, 4, 5, 6]
After they are fastened in place, with your finger-nail smooth out the
creases made at _a_, Fig. 5, as their appearance might furnish a clue
toward solving the mystery. It is best when cutting Fig. 2 to avoid the
creasing if possible.
[Illustration: Fig. 7]
When you pass them to your friends to take off, explain that they are
not to bend the boots. It is an excellent plan to make the last-named
articles of cardboard, while the other parts are simply of note-paper.
―――――◀▶―――――
HOW TO TAKE PORTRAITS.
[Illustration]
The person whose portrait is to be taken must sit so that his shadow is
thrown upon a sheet of cardboard or thick white paper placed against the
wall. To obtain a sharp outline there should be a fixed distance between
the lamp, wall, and sitter, which can easily be found by experiment. The
sitter must keep perfectly still while the outline of the shadow is
quickly traced upon the paper. A tumbler or roll of paper may be placed
between the head of the sitter and the wall, to aid in holding the head
quiet. The tracing is then cut out with a pair of scissors or a sharp
penknife, and placed upon a dark cloth or paper. This is a very pleasing
amusement for a cold winter’s evening, and the results are often profile
likenesses not only very striking but often wonderfully accurate.
―――――◀▶―――――
HOW TO BREAK A STRING.
[Illustration]
No boy feels himself perfectly at home if he has not one pocket at least
full of strings, and a good sharp jackknife at his command. Although the
jackknife often gets lost, the string is usually at hand, and most boys
will probably be glad to learn how a good strong cord can be broken
without injury to the hands. Take the cord and pass it around the left
hand, as shown in Fig. A, so as to form a cross or double loop over the
palm. One end is then wound round the fingers, and the other seized in
the right hand. Then, by closing both hands, and giving a very sharp,
quick pull, the string will be broken at the cross in the left hand.
[Illustration]
For those boys living in the country who have a musical turn, but have
never seen this little instrument, I write the following description of
―――――◀▶―――――
A CORN-STALK FIDDLE.
[Illustration]
Find a good straight corn-stalk, and with your jackknife cut four slits
from joint to joint, as seen in the upper figure. Then from a bit of
wood cut a bridge, as shown just below. With the point of the knife lift
the three strings and insert the bridge. Then carefully raise the bridge
to its upright position, spread the strings until they rest in the
grooves cut in the bridge for that purpose, and put a similar bridge at
the other end. Make the bow in the same manner, of a smaller section of
a stalk, and the instrument is complete. I have never heard a very
decided tune played on this fiddle, but perhaps some of my readers may
be able to get music from this simple little instrument.
[Illustration]
―――――◀▶―――――
THE XYLOPHONE.
The xylophone is an instrument of great antiquity, having been used in a
slightly different form by both Greeks and Hebrews. It is now sometimes
used in connection with other instruments in our larger orchestras, in
which case, however, the bars are usually made of metal. Its
construction is very simple, and any boy having a good ear for music can
readily make one.