—, fulminating, accidents from, i, 169; xxii, 185.

—, —, xviii, 335.

—, —, of Berthollet, xviii, 155.

—, —, Mitscherlich's mode of preparation, xix, 379.

—, on some of the substances which may be used in forming a metallic mirror by the precipitation of the oxide of, xlix, 398.

—, hyperoxide of, xlix, 194, 391.

—, purple precipitate of, xxii, 198.

—, German, made by Frick, xiii, 172.

—, imitation, xxiii, 195.

—, preparation of pure nitrate of, v, 348; xxiv, 370.