Within the cave, the temperature was 41 deg..
M.Morin visited this glaciere in August 1828.

He describes it as a sheltered hole, in which the snow collects and is preserved.
M.Thury examined it in August 1859, and gives the same account.

He, too, found the current of air which the younger Pictet discovered, but in the cave itself the air was perfectly still.
It was clearly, then, no great loss to miss the Glaciere of the Brezon; but that on the Mont Vergy, in the Valley of Reposoir, appears to be much more interesting.

Professor Pictet found himself sufficiently strong after a day's rest to pass on to Scionzier, and up the Valley of Reposoir, accompanied by the well-known guide Timothee, whose botanical knowledge of the district is said to be perfect.

He had conducted MM.
Necker and Colladon to the glaciere in 1807, and believed that no _savant_ had since seen it.