— —, —, Orfila, xviii, 157.

— —, effect of muriatic and sulphuric acids on, xviii, 146.

— —, apparatus for the evolution of, R. Hare, xxix, 244.f

— —, extraordinary production of, A. A. Hayes, xviii, 201.

— —, preservation of, xvi, 260.

— —, cases in which administered, ii, 83; iii, 187.

— —, efficacy in asthma, vi, 366.

— —, effects on a horse, xii, 385.

— —, effects of, on vegetation, x, 190.

— —, chlorine, an antidote for, xvii, 174; xxi, 157.