One of these cones was especially remarkable. It was at least five meters high--Von Allmen said eight--and at the bottom was about four meters in diameter. The base of this cone was entirely hollow. There was a break on one side by which we could enter, and we then stood on a rock floor with a small ice dome or vault overhead. I have seen no other hollow cone like this. The guide lighted a red Bengal fire inside, when the whole pyramid glowed with a delicate pink light, resembling _Alpenglühn_. Near this cone stood the half of another ice cone. It was quite perfect, and the missing half was cut off perpendicularly, as if with a huge cleaver. A hollow in the base of the remnant showed that this cone must have been originally also a hollow cone, and its destruction was probably due to the change in the temperature of the drip from the roof, at the setting in of the summer thaw. Just beyond the cones, the ice floor steepens and curls over into a big ice slope, one of the finest I have seen. Von Allmen spoke of this as _der gletscher_, an expression I never heard applied elsewhere to subterranean ice. On the right side, the slope would be difficult to descend in the darkness. On the left, the slope is gentle and a rock juts out a little way down. Von Allmen insisted on roping--an unnecessary safeguard--but he said: "If you slip, you will probably break an arm or a leg, and then we shall be in a nice mess." He then cut about twelve steps in the ice, down to the rock, while I shed light on the performance with our torch. We were so completely away from daylight that black was the predominating color; and even the ice was a dark gray, and only appeared white in the high lights. Below the rock, we found a narrow strip on the left side of the ice slope free from ice and blocked with boulders, over which we carefully picked our way down. At the bottom, the ice expanded into a level surface, stretching nearly to the end of the cave. There were only a few fissure columns in this part of the cavern, where the most remarkable feature was the cracks in the rock walls, which were so regular in formation that they almost looked like man's handiwork. The rocks are free from stalactites, and in fact stalactites seem a good deal of a rarity in glacières. On retracing our steps, we saw, when the first glimmers of daylight became perceptible, the rocks assume a brilliant blue color, as if they were flooded with moonlight. This effect lasted until near the mouth of the cavern. [Illustration: HOLLOW CONE AND FISSURE COLUMNS, SCHAFLOCH.] DÉMÉNYFÁLVA JEGBARLANG.