Snow Crystals Author:W. A. Bentley, W. J. Humphreys Over 2,000 photomicrographs of snowflakes, plus slides of frost, rime, glaze, dew and hail. Introduction by meteorologist W. J. Humphreys discusses techniques of photographing snow crystals, science of crystallography, classification and markings. "...page after page of patterns, one more beautiful than the next..."-Country Journal. 202 plates.