Mons. C. Dunant of the _Club Alpin Français_ describes a visit to the Glacière de l'Enfer. He mentions also a legend of a witch from a neighboring village who would get the ice from these caves and bring it down in the shape of hail on the crops of the peasants who were inhospitable to her. The Glacière de Chapuis. Described in Part I., page 5. (Browne, _Ice Caves_, etc., page 182, and _Good Words_, November, 1866.)--Mr. Browne calls it the Glacière de Chappet-Sur-Villaz. Mr. Browne and Professor T. G. Bonney found several flies in the Glacière de Chapuis. Three of them were specimens of _Stenophylax_, the largest being probably, but not certainly, _S. hieroglyphicus_ of Stephens. Two smaller caddis flies were either _S. testaceus_ of Pictet or some closely allied species. One other insect was an ichneumon of the genus _Paniscus_, of an unidentified species. It differed from all its congeners in the marking of the throat, resembling in this respect some species of _Ophion_. Mr. Browne thinks that the case flies may have been washed into the cave somehow or other in the larva form, and come to maturity on the ice where they had lodged. But this explanation will not hold in the case of the ichneumon, which is a parasitic genus on larvæ of terrestrial insects. The Glacière de Le Brezon. (Pictet, _Bibliothèque Universelle de Genève_, 1822, vol. XX., page 270, and Thury, _Bibliothèque Universelle de Genève_, 1861, vol. X., pages 139 and 152.)--It lies southeast of Bonneville near the foot of Mount Lechaud, at an altitude of 1276 meters. The cave is 9.7 meters long, about 8 meters wide and the greatest height is about 4 meters. The entrance is small and is at the base of a cliff, in some places of which cold air currents issue. The ice lies on the floor. Some of it is probably winter snow. The Glacière de Brisons.--Described in Part I., page 1. The Grand Cave de Montarquis. Described in Part I., page 70. (Thury, _Bibliothèque Universelle de Genève_, vol. X., pages 135-153.)--Professor Thury describes two visits to this cave. On the 16th of August, 1859, he found no ice stalactites or stalagmites. On the 19th of January, 1861, he did not find a single drop of water in the cave, but many stalactites and stalagmites of beautiful clear ice, one of which resembled porcelain more than any other substance. In August, Thury found an air current streaming into the cave at the rear, but this did not, however, disturb the air of the interior, for in one part it was in perfect equilibrium: along the line of the draughts the ice was more melted than elsewhere in the cave. In January, the current was reversed and poured into the fissure, with the temperature varying between -1.5° and -2.5°. He observed the following temperatures at the Grand Cave:--