No. LIII.—THE NIMBLE COIN

The most effective way to transfer the coin from the top of the circular band of paper into the bottle is to strike a smart blow with a cane, or any small stick, on the inside of the paper band. There is not time for the coin to be influenced in the same direction, and it falls plumb into the neck of the bottle.

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No. LVIII.—WHAT WILL HAPPEN?

When the boy shown in this picture blows hard at the bottle which is between his mouth and the candle flame, the divided air current flows round the bottle, reunites, and extinguishes the flame.

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No. LX.—VIS INERTIÆ

If, by a strong pull of my finger, I launch the draughtsman that is on the edge of the table against the column of ten in front of it, the black man, which is just at the height to receive the full force of the blow, will be knocked clean out of its place, while the others will not fall. This is another illustration of the vis inertiæ.