222 OXIDES, EAETDS, AXD ACIDS. Analysis by Whitney :— Oxide of uranium u . 59-30 Oxide of lead .... 5-36 Oxide of iron .... 2-24 Alumina 0-90 Lime .* . 14-44 Carbonic acid .... 7-47 Water 4-64 Silica 4-35 Is found on the north shore of Lake Superior. 111. WOLERAMOCHER.—Oxide of tungsten; Phillips. Wolframocher; Hausmann, Haidinger. Earthy. Opaque. Dull. Yellow. Before the blowpipe on charcoal in the inner flame at first becomes blackish-blue, and then black. -With salt of phos phorus in the outer flame forms a colourless or yellow glass, and in the inner flame a glass which becomes blue on cooling. Completely soluble in alkalies, especially in ammonia. W, scheelium 79'84, oxygen 20-16. _ Occurs massive investing other minerals. Is found at Hun tington in the United States with wolfram and scheelito. 112. MOLYBDANOCHER. — Oxide of molybdenum; Phillips. Acide molybdiquo ; Beudant. Molybdiinocher ; Hausmann, Haidinger. Earthy. Opaque. Dull. Orange-yellow... straw-yellow... siskin-green. Eusible before the blowpipe. With salt of phosphorus in fho inner flame forms a glass which is dark while hot, but which becomes green and transparent on cooling. Reducible with soda. Soluble in hydrochloric acid, in potash, and in ammonia. Mo, molybdenum 66 - 62, oxygen 33-48. Occurs massive and disseminated. Is found with molybenite in Sweden, at Linnas in Smaland, Bispberg in Dalarne, at Nutnmeladen in Norway, at Corybuy in Loch Creran in Scotland, Pfiilzerthal in the Tyrol. 113. WISMUTHOCIIER.—Bismuth ochre; Phillips. Bis muth oxide; Ilauy. Wismuthocker ; Mohs, Hausmann, Hai dinger.