The drop turned out to be a mere nothing, and, taking the candle, I scrambled on, down the sloping floor of the fissure, towards the heart of the mountain, expecting every moment that my further passage would be stopped by solid rock. But, after reaching a part so narrow that I was obliged to mount by both sides at once in order to get past it, I found a commodious gallery, opening out into a long and narrow and very lofty cavern, still only a fissure, the floor of which continued the regular and rapid slope down which I had so far come. A short way farther down, an opening appeared to the left; and I turned off the main passage into a horizontal gallery or chamber, with a floor of ice resting on rock and stones. This chamber seemed to be 3 or 4 yards wide at the entrance, narrowing regularly to 4 1/2 feet. It was 40 feet long, and at the farther end, which would not have been visible from the entrance, on account of a slight bend in the ice-gallery, even if there had been any light, it was closed by an ice-cascade 7 yards high and 4 1/2 feet broad at the bottom. The ice of much of this cascade was so clear, that I saw the rock upon which it rested, or in some parts did not rest, quite plainly, and the large air-cavities in the structure were beautifully shown by the richly-coloured rock behind. None of the current which we had observed above, and which had nearly baffled my protecting care of the candle during the descent, came from this gallery; but I find it written in my notes that the gallery was _very_ cold. Thaw was going on, rather rapidly; and the water stole out by the entrance, and ran down the main descent, over ice and among rocks, into the farther darkness.