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Johannes Kepler, De Nive Sexangular, Translated to the Six-Cornered [1929Bar] William Howard Barnes, The crystal [1611Kep] Johannes Kepler, De Nive structure of ice between 0 C and -183 C, Proc. Sexangular, translated to The Six-Cornered R. Soc. Lond. A, 1929. Snowflake, by Colin Hardie, Oxford Press, 1966; also by Jacques Bromberg, Paul Dry [1928Str] I. N. Stranski, Z. phys. Chem. 136, Books, 2010. 259, 1928. [1637Des] Réne Descartes, Les Météores, in [1931Ben] Wilson Bentley and William Discours de la Methode, Leiden, 1637. Humphreys, Snow Crystals, McGraw-Hill (New York), 1931. [1665Hoo] Robert Hooke, Micrographia, Royal Society (London), 1665. [1932Fre] J. Frenkel, Phys. Z. Sowjetunion 1, 498, 1932. [1820Sco] William Scoresby, An Account of the Arctic Regions with a History and Description of [1933Ber] J. D. Bernal and R. H. 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