"No ice is formed if the wind is sufficiently strong to be called a breeze, for the air is not left long enough at rest, above the bed, for its temperature to fall sufficiently, by the action of radiation. "The rice straw, being kept loose and perfectly dry, cuts off the access of heat from the surface of the ground below it, and, when the sun goes down, the straw being a powerful radiator, the temperature of the air in contact with the dishes is reduced some 20° below that prevailing some two or three feet above them. The rapid evaporation of the water into the dry air above creates also an active demand for heat to be rendered latent in the formation of steam, and the result of all these agencies is the formation of ice, under favorable circumstances, on the extensive scale above mentioned." KOREA. Glacière Cave on the Han Gang.--Messrs. J. Edward Farnum and George L. Farnum, of Philadelphia, inform me that they saw a small cave containing ice on the banks of one of the Korean rivers. It is about 75 kilometers from Seoul, nearly northeast, near the ferry where the old road leading from Seoul towards northern Korea crosses the Han Gang, the river which passes by Seoul. The entrance is small; perhaps 2 meters wide. The cave is not thoroughly explored. Ice lies near the entrance, and as far back as the Messrs. Farnum could see. JAPAN. Glacière Lava Cave near Shoji. (_Evening Telegraph, Philadelphia, January 2d, 1896._)--The cave is about 12 kilometers from Shoji, and is in lava. First there is a pit in the forest, some 5 meters wide by 15 meters deep. The cave opens into this. It seems to be some 400 meters long and from 2 meters to 12 meters high. There is an ice floor in places, also many ice stalagmites. At the furthest point reached there is a strong air current, which extinguishes torches and so far has prevented further exploration. Ice from the cave has been cut by the country people for sale at Kofu, which is not far distant. PART IV. SOME OPINIONS ABOUT GLACIÈRES. SOME OPINIONS ABOUT GLACIÈRES. Benigne Poissenot, in 1586, hinted that the cold of winter produced the ice at Chaux-les-Passavant.[69] [69] See Part III.: page 193. Reichard Strein and Christoph Schallenberger visited the caves on the Ötscher in 1591.[70] [70] See Part III.: page 231. Gollut, in 1592, suggested the cold of winter as the cause of the ice at Chaux-les-Passavant.[71] [71] See Part III.: page 202.