THE PROJECTILE-VEHICLE

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Caustic potash has a great affinity for carbonic acid; and it is sufficient to shake it in order for it to seize upon the acid and form bicarbonate of potassium. By these two means they would be enabled to restore to the vitiated air its life-supporting properties.

It is necessary, however, to add that the experiments had hitherto been made in anima vili. Whatever its scientific accuracy was, they were at present ignorant how it would answer with human beings. The honor of putting it to the proof was energetically claimed by J. T. Maston.

"Since I am not to go," said the brave artillerist, "I may at least live for a week in the projectile."

It would have been hard to refuse him; so they consented to his wish. A sufficient quantity of chlorate of potassium and of caustic potash was placed at his disposal, together with provisions for eight days. And having shaken hands with his friends, on the 12th of November, at six o'clock A.M., after strictly informing them not to open his prison before the 20th, at six o'clock P.M., he slid down the projectile, the plate of which was at once hermetically sealed. What did he do with himself during that week? They could get no information. The thickness of the walls of the projectile prevented any sound reaching from the inside to the outside. On the 20th of November, at six P.M. exactly, the plate was opened. The friends of J. T. Maston had been all along in a state of much anxiety; but they were promptly reassured on hearing a jolly voice shouting a boisterous hurrah.

Presently afterward the secretary of the Gun Club appeared at the top of the cone in a triumphant attitude. He had grown fat!