The Quartz Operator's Hand-bookD. Van Nostrand, 1871 - 175 ページ |
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alloy ammonia antimony Assay batteries Black Flux borax bottom calcining cam-shaft carbonate of soda charcoal charge chloride chloride of silver cloth color Common salt concentrated Conoidal containing copper crucible cubic cupellation cylinder diameter dilute dissolving earthen crucible employed Engineer Excelsior Grinder feet Ferrocyanide Filter filtrate furnace fused gamators gangue glass gold and silver Grinder and Amalgamator grinding heat horse-power hydrochloric acid lead litharge machine machinery mercury metallic mineral veins mortar muller nitric acid opening oxidizing flame Phosphate of Soda pipe plates portions Potassium Potassium produces pounds Process.-1st produces a white pulp pulverized quartz quicksilver readily reducing flame residuum retort Reverberatory reverberatory furnace roasted rock separated shaft slags smelting SODIUM AMALGAM soluble solution square inch stamps steam sulphate of iron sulphide sulphuric acid surface Table tellurium tion Tractory tubs tunnel velocity wash weigh the button weight white precipitate zinc
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156 ページ - POWER. The theoretical velocity with which a liquid issues from an orifice in the bottom or side of a vessel that is kept full, is equal to that which a heavy body would acquire by falling from the level of the surface to the level of the orifice ; this
117 ページ - or tailings are spread in inclosures open to the sky, and allowed to remain a long time, for instance a year. The tailings are occasionally turned with shovels, and the lumps broken so as to expose as much surface as possible to the action of the air. Common salt, mixed with the tailings,