— —, effects on vegetation, x, 190.
— —, chlorine an antidote for, xvii, 174; xxi, 157.
Pseudomorphine, a new vegetable extract, xxx, 179.
Pseudomorphism, observations on, J. D. Dana, xlviii, 81, 397.
[Pseudomorphous] minerals, account of, in a review of J. R. Blum's treatise, xlviii, 66.
— (crystallized) steatite, in Massachusetts, C. Dewey, iv, 274; v, 249; vi, 333; viii, 51.
— steatite, having the form of quartz, scapolite and spinel, xxi, 320.
— steatitic hornblende, analysis of, L. C. Beck, xlvi, 35.
— quartz, at Southampton lead mine, vi, 214; ix, 249.