some hay, which I lighted and threw into the cave; this was immediately extinguished; we repeated the experiment several times with the same result. I now saw that more active means must be resorted to.
We had brought from the vessel a box of fireworks, intended for signals; I threw into the cave, by a cord, a quantity of rockets, grenades, &c., and scattered a train of gunpowder from them; to this I applied a long match, and we retired to a little distance. This succeeded well; a great explosion agitated the air, a torrent of the carbonic acid gas rushed through the opening, and was replaced by the pure air; we sent in a few more rockets, which flew round like fiery dragons, disclosing to us the vast extent of the cave. A shower of stars, which concluded our experiment, made us wish the duration had been longer. It seemed as if a crowd of winged genii, carrying each a lamp, were floating about in that enchanted cavern. When they vanished, I threw in some more lighted hay, which blazed in such a lively manner, that I knew all danger was over from the gas; but, for fear of deep pits, or pools of water, I would not venture in without lights. I therefore despatched Jack, on his buffalo, to report this discovery to his mother, and bring all the candles she had made. I purposely sent Jack on the errand, for his lively and poetic turn of mind would, I hoped, invest the grotto with such charms, that his mother would even abandon her wheel to come and see it.
Delighted with his commission, Jack leaped upon his buffalo, and, waving his whip, galloped off with an intrepidity that made my hair stand on
