Crystallization, tendency to, in matter, xix, 381.
—, on the influence of air on, M. Graham, xvii, 373.
— effected by the action of weak electric forces, M. Becquerel, xvii, 383; xxviii, 291.
— — ibid, G. Bird, xxxiii, 267.
— — —, A. Crosse, xxxv, 125.f
—, an instance of instantaneous, J. Green, iii, 93.
— of snow, J. Green, ii, 337.f
—, curved, of gypsum, Mammoth Cave, Ky., J. Locke, xlii, 206.f
— the cause of the schistose structure and cleavage of some rocks, J. D. Dana, xlv, 105.
— of carbonate of potash, viii, 181.