—, — of the Caligus Americanus, xxxiv, 225.f
—, — of two species of Hydrachna, xxx, 354.f
—, metamorphosis of Anatifæ, and their relation to Crustacea, xlv, 335.
—, classification of minerals, xlvi, 374.
—, drawing of figures of crystals, xxxiii, 30.f
—, crystallographic symbols, xxviii, 250.
—, on the formation of twin crystals, xxx, 275.f
—, crystallization of the so-called Edwardsite, (monazite,) xxxiii, 202.f
—, crystals of quartz, magnetic iron, apatite, and calc spar, distorted, xlvi, 365.f
—, — pyrites, Rossie, xlvi, 36.f