The Breath of Life.
THE BREATH OF LIFE.
Procure a tolerably large bell-glass, such as is used for covering clocks and ornaments upon the mantel-piece. It should not be less than eighteen inches high, and eight or nine inches in diameter. Provide also a common dish, sufficiently large to allow the bell-glass to stand well within its raised border. Then procure two little wax candles, three or four inches in length, and stand each in a little bottle or other temporary candlestick. Place them in the center of the dish and light the wicks. Then pour water into the dish to the depth of nearly an inch, and finish by placing the bell over the candles, which of course are then closely shut in. For a few minutes all goes on properly. The flames burn steadily, and seem to laugh at the idea of their being about to die. But, presently, they become faint,—first one, then the other; the luster and the size of the flames diminish rapidly, and then they go out. This is because the burning candles consumed all the oxygen that was contained within the volume of atmosphere that was in the bell, and were unable, on account of the water, to get new supplies from outside. It illustrates, in the most perfect manner, our own need of constant supplies of good fresh air. The experiment may be improved, or at all events varied, by using candles of different lengths.