Fig. 111.
What is the difference between this subject and a young widow? The latter is a widdy girl, while the above is a giddy whirl.
FIERY SHOWER.
Bore out a small reservoir in a piece of hard wood, in the shape of a cup or inverted cone, and fill it with quicksilver in the upper aperture of the receiver of an air-pump. On exhausting the air, the atmospherical pressure will force the mercury through the wood so that it will fall in a luminous shower.
THE COIN AND WINE-GLASS PUZZLE.
Place a half-crown in a wine-glass over a sixpence. To remove the latter without touching the glass, blow down into it, when the larger coin will turn and let the other pass up out over the other side.
Fig. 112.
THE WEATHER PROPHETS.
Suspend a small circular plate by its centre of gravity, by a fine string or piece of catgut, and attach the other end to a hook. As the air is more or less moist, the plate will turn. A bell-glass may cover it to prevent the wind deranging it, but the air must have access to the string.