After descending a yard or two, this becomes larger, and divides into two main branches, with three other fissures penetrating into the heart of the mountain, too narrow to admit of a passage.

The roof is very irregular, and the stones on the floor are interspersed with ice, which appears also in the form of icicles upon the walls; and, in the eastern branch of the cave, there is a cylindrical pillar more than 3 feet long, with a diameter of rather more than a foot.

The temperature at 4 P.M.

on July 15, 1841, was as follows:--The external air, 59 deg.; the cave, at the entrance, 37.2ｺ; near the large cylinder, 35 deg..7; and in different parts of the western branch, from 33 deg..6 to 32 deg..9.
M.Carrel was evidently not aware of the existence of similar caves elsewhere.

He recommends, in his communication to the _Bibliotheque Universelle_, that some scientific man should investigate the phenomena, and explain the great cold, and the fact of the formation of ice, which common report ascribed to the time of the Dog-days.