The School of Mines Quarterly, Volumen29Columbia University, 1908 |
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Otras ediciones - Ver todas
Términos y frases comunes
acid Alloys amount ampere hours amperes angle anode anorg Antimony autoxidations bismuth blast furnaces boiling carbon cast cathode Cell cent Chem chloride coal color containing cooling copper cross-section crucible cryolite curve cyanide deposits determined dilute dissolved electrolyte excess feet feldspars filter form a eutectic freezing point fused gneiss gnomonic projection gold grams graphite H,SO heat horizontal hydrogen inches ingots iron joint lead lead sulfide lease magnetite matte melting metal Metallurgie method mill miner mining claim nickel obtained operation orthoclase owner oxide oxygen plant pounds precipitate present pressure produced quartz railroads reaction road rock salts sample sand shaft silver slag slime Smelter Smelting solid solutions soluble Stage steel sulphate sulphur surface temperature tests tion titrate tons tractive force tube vertical Zinc
Pasajes populares
Página 126 - O earth, what changes hast thou seen ! There where the long street roars hath been The stillness of the central sea. The hills are shadows, and they flow From form to form, and nothing stands ; They melt like mist, the solid lands, Like clouds they shape themselves and go.
Página 121 - ... hands. . . . There is much excellent descriptive matter in the work, the chapter on 'Oils and Lubrication ' being specially noticeable in this respect.
Página 196 - No claim shall extend more than three hundred feet on each side of the middle of the vein at the surface...
Página 407 - All records of mining claims hereafter made shall contain the name or names of the locators, the date of the location, and such a description of the claim or claims located by reference to some natural object or permanent monument as will identify the claim.
Página 98 - This he cannot do until the discoverer has in law abandoned his claim, and left the property open for another to take up.
Página 408 - Mining claims upon veins or lodes of quartz or other rock in place bearing gold, silver, cinnabar, lead, tin, copper, or other valuable deposits...