—, method of detecting small quantities of, vii, 392.
—, combination of, with metallic wires, xvii, 375.
—, elastic force of the vapor of, M. Avogadro, xxiv, 286.
—, on the vaporization of, in nitric ether, S. Guthrie, xxi, 90.
—, germination on, xix, 202.
—, passage of, from a vessel through a bar of lead bent like a syphon, xxxviii, 180.
—, iodide of, W. W. Mather, xxvii, 263.
—, compounds of, Donovan, ii, 350.
—, sesqui-sulphate of, xviii, 364.
— mines of Spain, xxviii, 21.