— of ammonia, solvent and oxidating powers of, xviii, 255.
—, efflorescence of, prevented by the vapor of turpentine, xvi, 391.
—, haloid, certain existence of, in solution, demonstrated, G. Wilson, xxxviii, 118.
—, Harrodsburg, analysis of, E. D. Smith, i, 403.
—, metallic, on the decomposition of, C. Matteucci, xx, 187.
—, new series of double, formed by the action of sulphurous and nitrous acids upon the alkaline bases, E. Fremy, xlviii, 194.
Saltness of the ocean, v, 131.
— —, remarks on, H. Humphreys, xlix, 208.
— —, at different depths, xxiii, 10.
Saltpetre, method of making by sun's heat, discovered by Baffi, vi, 400.