—, hydruret of, L. J. Thenard, xxii, 351.

— acid, new, xlvii, 191.

— spring, see [Spring.]

Sulphurets of the metal, new method of precipitating, xlvii, 193.

Sulphuretted hydrogen gas in the state of New York, xv, 235.

— —, condensation of, to a liquid, M. Faraday, vii, 354.

— —, solidified, M. Faraday, xlix, 377.

— —, injurious effects of, xviii, 160.

[Sulphuric acid,] anhydrous, new mode of forming, xii, 200.

— —, —, Mosander's mode of preparing, xxviii, 360.