—, test for, vi, 376.
—, amalgam of, xxvii, 363.
—, action of, on combustible gases mixed with oxygen, xii, 181.
— mines, found in the Ural, Russia, xii, 384; xiv, 204; xviii, 190; xxviii, 395.
— of Russia, large masses, xvi, 389; xlvi, 212.
—, large mass of, from Peru, iv, 28; xvi, 389.
—, analysis of the Russian, J. J. Berzelius, xviii, 162.
—, in France, xxvi, 389.
— boilers, at Paris, xvii, 179.
— lamp, xx, 385.