Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 1080
ry hot plate, forms large crystalsradiating from centres without any undulations ; when the heat isless considerable the crystals are smaller, and show concentricwaves of very decided form (fig. 754) ; but when the slip of glass iscool the crystals are exceedingly minute. In the case of sulphate… … IOlS CRYSTALLISATION, POLARISATION. ETC. temperature of from 80° to 90°, in obtaining most singular andbeautiful forms of spiral crystallisation, such as that represented infig. 755. Mr. Slack has shown that a great variety of spiral andcurved forms can be obtained by dissolving metallic salts, or…
Microscopy
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