Easy method of Constructing paper Balloons.
Take several sheets of silk paper, cut them like the covering of the sections of an orange, join these pieces together into a globular body, and border the opening with a ribbon, leaving the ends that you may suspend the following lamp: make a small basket of very fine wire, if the balloon is small, and suspend it from the following opening, so that the smoke from the flames of a few sheets of paper wrapped together and dipped in oil, may heat the inside of it, before you light this paper, suspend the balloon so that it may, in a great measure, be exhausted of air, and, as soon as it has been dilated, let it go, together with the basket, which will serve as ballast.
A Lead Tree.
To a piece of zinc fasten a wire twisted in the form of the worm of a still, introduce it into the bottle suspended to the cork. Let the bottle be filled with spring water, with a small quantity of sugar of lead added. In a few days the tree will begin to grow, and produce a most beautiful effect.
To place a Lighted Candle under Water without extinguishing it.
Take a glass, and fastening a small bit of wood across the mouth, stick on it a lighted piece of candle, and, with a steady hand, convey the glass to the surface of the water, then push it gently down, and the candle may be seen burning under the water.
To make Detonating Balls.
Half a grain of fulminating silver, is to be wrapped up with a hard pea in a piece of tissue paper, this, when thrown smartly on the ground or when trod upon, explodes with a loud report.
Invisible Ink.
Mix alum with lemon juice, the letters and characters written with this mixture are invisible till dipped in water. If a little aqua-fortis be mixed with the water, the writing will dry well and not run out of its form when the paper is wetted.