Contrive a six-sided box, six inches in diameter and ten deep, lined with tin or other polished surface, and with a double convex lens in the centre of one side. On the opposite side, exactly in its middle, cut out a hole to receive the face of a watch, with a little shelf outside to hold the case firmly.
Support the box in the centre on a hollow leg, which is watertight and is filled with water, to float a night-light, and let the leg fit into a stand to go on a table by the bed-side or on a shelf at the foot of the bed.
Action.—The lens will magnify the reflection of the watchface so that the figures can be clearly distinguished.
DOUBLE-COLOURED REFLECTION.
Bore a hole through a disc of tinted glass with a bradawl, kept moist with oil of turpentine, frame it in your forefinger and thumb held around the edge, and let a strong light pass through it.
With a blue glass the centre spot will be orange; with green, red; with red, green, &c.
THE PHANTOM FLOWER.
(Palingenesia.)
A plain white glass decanter is taken up and placed on a table, when it is filled with water. It is pretended that this fluid is enchanted, since, after a flower has been selected from a bouquet and burnt by the spectator himself, its exact image is presented in the bottle.