—, amount produced in Great Britain and Ireland, for the year ending June 30, 1822, viii, 390.
—, determination of, in a binoxide salt, xlvii, 193.
—, partial reduction of the binoxide of, by heat, xlviii, 184.
—, hydride of, A. Wurtz, xlviii, 185.
—, silvering of, xxiii, 386.
—, metallic, galvanic formation of, in a mineral vein, xxxiv, 44.
—, protoxide of, xxii, 353.
—, white, artificial, viii, 380.
—, Witting's test for, ix, 201.
—, tendency of iron to protect, when exposed to sea-water, xxv, 203.f