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OF CLOUDS, RAIN, SNOW, AND HAIL.
Anaximenes thinks that the air by being very much condensed clouds are formed; this air being more compacted, rain is compressed through it; when water in its falling down freezeth, then snow is generated; when it is encompassed with a moist air, it is hail.

Metrodorus, that a cloud is composed of a watery exhalation carried into a higher place.

Epicurus, that they are made of vapors; and that hail and snow are formed in a round figure, being in their long descent pressed upon by the circumambient air..