A Compendium of Gold Metallurgy (ores)Times-Mirror printing house, 1899 - 128 sider |
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A Compendium of Gold Metallurgy (ores): And Digest of U.S. Mining Laws ... Erwin, M. Wade,Maner L. Wade Uten tilgangsbegrensning - 1901 |
A Compendium of Gold Metallurgy (Ores): And Digest of U.S. Mining Laws ... E M Wade Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
amal appendix assay assayer barrel base metals borax breaker bullion California cent chemical Chemists clayey cleaned coarse crushing coarse gold color concentrates copper crucible CRUSHING AND PULVERIZING cupel Cyanide Plants cyanide solutions drop electric electro-cyanide federal feet filter bottoms fluxes gold and silver iron lead litharge lode claim Los Angeles Daily machinery Main St MANUFACTURERS material means melted mercury method MILL TEST miner's inch mineral Mining Journal mortar MYSTIC ROTARY QUARTZ nitric acid NON-SHRINKING WATER TANK operation oxides P-C process percolation phurets pipe placer claims plates potassium cyanide precipitated pulp pulverized Pumps pyrites quantity quartz retorted roasting rock roller quartz mills salt sampled San Francisco scorification screen shaking slimes smelting sodium amalgam solu sometimes Specific gravity Stamp Mills statute Street sulphide sulphurets tailings tellurides tellurium tion treatment usually vanner vein WADE & WADE washed weight zinc
Populære avsnitt
Side 29 - Specific gravity. The ratio of the weight of a body to that of an equal volume of some standard substance, water in the case of solids and liquids, air in the case of gases ; numerically equal to the density.
Side 123 - Upon the failure of any one of several coowners to contribute his proportion of the expenditures required hereby, the coowners who have performed the labor or made the improvements may, at the expiration of the year, give such delinquent coowner personal notice in writing, or notice by publication...
Side 29 - M<>h.« : (1) talc, (2) gypsum, (3) calcite, (4) fluorite, (5) apatite, (6) felspar, (7) quartz, (8) topaz. (9) sapphire. (10) diamond.
Side 121 - ... a description of the claim by reference to some natural object or permanent monument...
Side 29 - Hardness is a relative term denoting that quality of cast iron the degree of which is determined by its power to scratch or to be scratched by other substances according to an arbitrary scale.
Side 101 - A inches thick, the width of the aperture being whatever length is required. The lower edge of the aperture is placed 2 inches above the bottom of the measuring box and the plank is 5 inches high above the aperture, so that the head will be 6 inches above the center of the stream...
Side 122 - ... not less than $100 worth of work shall be performed or improvements made during each year.
Side 105 - Miners sometimes tie up the amalgam in a rag And roast in the ashes^ 8. An alcohol lamp and alcohol for heating. 9. A blowpipe, and sticks of willow charcoal; a little borax, soda, etc.
Side 104 - Stronar nitric acid, 1 or 2 pounds. 4. Mercury, a few pounds, and a little sodium amalgam and potassium cyanide. 5. A small tub or bucket of water for horn ing or panning in.
Side 47 - The duty of stamps varies considerably, according to weight, the height of drop, speed, size of screen, nature of the ore, height of discharge, width of mortar, etc.