in places by irregular streaks of white crystalline calcite. At the eastern end, a very narrow passage between fallen masses of rock, affording barely room to squeeze through, leads to ‘The Witches Ball-room.’ It is 1½ to 2 feet wide, 3 to 4 feet high and some 20 feet in length. “The Ball-room is roughly triangular in shape with sides of about 60 feet, and an estimated height of 50 feet. The largest portion of the space is occupied by an enormous rock that has fallen from the roof. This rock has a generally level surface, and is just the spot where a group of witch-hags might be expected to caper round the ghastly fumes of some hellish cauldron at a Sabbath meeting; hence the name, in sympathy with the ill-omened and weird surroundings. On all sides, except that of the passage, are deep cracks partly choked up by fallen blocks but still exposing many deep and pitch-black holes leading to the unknown, where the underground stream is heard roaring dully. By one of these, at the northeast corner of the chamber, W. S. Ayres and C. H. Deutschman penetrated to ‘The Terror’ and ‘The Old Mill,’ the former 60 odd feet below the Ball-room. Their explorations in this quarter are shown on the accompanying map, in red, and a description of them will be found in Mr. Ayres’ supplementary report. Many of the fallen blocks show crystalline calcite markings similar to those found in the Dropping Cave. “Leaving the Ball-room the passage leads southeasterly for a distance of 125 feet to where there is a parting of the ways. The upper end is a vaulted chamber, 15 to 20 feet wide and about 20 feet high, a crack on the left, leading to the depths below, has been partly filled by fallen rock debris. The broken blocks of which the floor is composed show crystallized dark blue limestone, veined with white ribbons of calcite. For the lower portion, the passage lies between separated limestone strata from 3 to 7 feet apart; the floor, of broken boulders and slabs is very irregular. Both roof and floor are water-worn and show erosion markings. They descend until they meet 20 to 30 feet below. The subterranean stream is heard with a muffled roar on the left. On the right, three passages, met at intervals, lead to two circular funnel-like chambers, the more distant of which has been named ‘The Pit.’