We had chosen to ascend to the old crater rather than to the new one of the recent eruption on the side of the mountain, where there is nothing to be seen. When we reached the bottom of the Cone, our guide led us to the north side, and into a region that did begin to look like business. The wind drove all the smoke round there, and we were half stifled with sulphur fumes to begin with. Then the whole ground was discolored red and yellow, and with many more gay and sulphur-suggesting colors. And it actually had deep fissures in it, over which we stepped and among which we went, out of which came blasts of hot, horrid vapor, with a roaring as if we were in the midst of furnaces. And if we came near the cracks the heat was powerful in our faces, and if we thrust our sticks down them they were instantly burned; and the guides cooked eggs; and the crust was thin, and very hot to our boots; and half the time we couldn't see anything; and we would rush away where the vapor was not so thick, and, with handkerchiefs to our mouths, rush in again to get the full effect. After we came out again into better air, it was as if we had been through the burning, fiery furnace, and had the smell of it on our garments. And, indeed, the sulphur had changed to red certain of our clothes, and noticeably my pantaloons and the black velvet cap of one of the ladies; and it was some days before they recovered their color. But, as I say, there was no sense of danger in the adventure. We descended by a different route, on the south side of the mountain, to our horses, and made a lark of it. We went down an ash slope, very steep, where we sank in a foot or little less at every step, and there was nothing to do for it, but to run and jump. We took steps as long as if we had worn seven-league boots. When the whole party got in motion, the entire slope seemed to slide a little with us, and there appeared some danger of an avalanche. But we did n't stop for it. It was exactly like plunging down a steep hillside that is covered thickly with light, soft snow. There was a gray-haired gentleman with us, with a good deal of the boy in him, who thought it great fun.