—, controversy regarding the nature of, xvii, 230.

—, Davy's views respecting, xvii 230.

—, atomic weight of, xlvii, 188.

—, allotropism of, as connected with the theory of substitution, J. W. Draper, xlix, 346.f

—, an antidote to prussic acid xxi, 157.

—, explosive reaction of, with hydrogen, R. Hare, xxix, 243.f

—, — —, —, iii, 341.

—, a remedy in phthisis, xviii, 161.

—, remedy against the dangers of inspiration of, xiii, 393.

—, solubility in water, xlvii, 191.