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Scientific American, Vol. 45, No. 7 (August 1881) (1881)
leaf 4
e asked how to test copper ores shaped, about six feet high and four and one-half feet in will find the following method simple, expeditious, and diameter. It is heated by steam coils within, and by a steam sufficiently accurate for all practical purposes. jacket without—inclosing the lower… … I are no longer given off. Then one ounce of cold water is far smaller proportion of ash and of phosphoric acid, and I stirred in, and after a few minutes' standing two ounces of by higher proportion of carbon, nitrogen, and sulphur. VACUUM FAN FOB CONDENSING MILK. © 1881 SCIENTIFIC AMERICIAN, INCPatented · Boiler · Feet · Improved · Water · Patents · Scientific American · Consists · Large number · Feed water · Cubic feet · Steam boiler · Sewing machine · Square foot · Three feet · Hot water · Steam pump
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