THE BOTTLE IMP.
Take one or more small bottles, such as are generally used by homeopathic physicians for their pellets; cover them with a bit of closely-woven white cloth, and fasten it with a string around the middle. With oil paint make a grotesque face upon the upper part, and draw stripes or figures to represent a clown’s dress upon the lower and loose portion of the covering of each. Varnish this with the shellac, dissolved in alcohol, and when perfectly dry they are ready for use. Have a large-mouthed, perfectly clear glass jar nearly filled with water; then, after filling the little bottles about one-third full of the liquid, place the finger over the opening and immerse them, one at a time, bottom upward, into the jar. Be sure and keep the finger over the tiny mouth till they are well under the surface of the water. Should they sink in the jar, you have too much water in them.
The quantity of water they contain should be such that they will barely float, that is, the bottom of the little inverted vials should just touch the surface. This adjusting of the equilibrium is a matter of some delicacy; a single drop will make a difference: but by half-filling the bottle, placing the finger over the mouth, and removing it an instant to allow a drop or two to escape, the proper degree of buoyancy may be attained. Three or four of these bottles, in masquerade, should be introduced into the jar, and if they are, as they doubtless will be, of slightly differing degrees of buoyancy, the amusing effect will be enhanced. Now stretch a piece of thin rubber, such as toy balloons are made of, across the mouth of the jar, and tie it down, as seen in the illustration.
To make the imps dance, one has only to press upon the rubber top, as the air, in the top of the jar, is thus forced downward, the water is driven up into the small bottles, compressing the tiny quantity of air they contain, and they, in consequence, fall lower in the jar; but when the pressure is removed, the air in them expands, and they instantly rise to their normal position again.
Quite a pleasant evening’s entertainment can be derived from this simple toy. You may first adjust your imps and make sure they are in good working order; then prepare a slight introductory speech, in which you can pretend to mesmerize the little images, not letting it be known they are bottles, and by some wonderful power you are supposed to possess, can make them obey your slightest wish. This will be very simple, as they will naturally descend when you press upon the top. This pressure should be exerted in such a manner that it is not noticed by the others in the room. You might stand with your left hand resting upon the top of the jar as if by accident, but in such a manner that you can easily press down upon the rubber with one or more fingers, and while telling of the wonderful things these little fellows can do, you can make graceful gestures with your right hand, and motion with it what you require them to do; it will thus seem that they are obeying the motions of that hand, and will serve to mystify more than ever those of your audience who are unacquainted with the secret.
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