Bulletin of the American Institute of Mining and Metallurgical Engineers with which is Consolidated the American Institute of Metals, Випуски 97 – 102American Institute of Mining and Metallurgical Engineers., 1915 |
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Bulletin of the American Institute of Mining and Metallurgical ..., Випуск 138 Повний перегляд - 1918 |
Bulletin of the American Institute of Mining and ..., Випуски 7 – 12 Повний перегляд - 1906 |
Bulletin of the American Institute of Mining and ..., Випуски 19 – 24 Повний перегляд - 1908 |
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amount average barite beds blast bornite bottom briquets calcite carbon cent chalcocite chalcopyrite charge clays coal coke colloidal concentration copper cost County covellite Cretaceous deposits depth developed dikes discussion offered thereafter district drill electric enargite engine explosions feldspar finishing temperature fissures furnace grains granite hammer drills heat holes igneous igneous rocks increased ingot installed iron kaolin kaolinite Katalla leaching limestone limonite magnetite manganese material Mayari metal method miles mill mineral mining occur operation orebody oxide paper will close percentage pipe plant plasticity potash practically present pressure probably production pumps pyrite quartz rails residual rock salt sample sand sandstone shaft shale shrinkage silica slag smelting solution sphalerite steam steel stoping structure sulphate sulphide sulphuric acid surface tank tests thereafter should preferably thickness tion tons turbo blower vein York Meeting zinc
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Сторінка 920 - probably apply his own language to the law of the apex: "Chaos umpire sits, And by decision more embroils the fray By which he reigns; next him high arbiter, Chance governs all.
Сторінка 435 - where waterproof sockets must be used and where lamp is not to be carried about, wires to socket must be soldered direct to the "circuit wires, but supported independently of them. Porcelain cleats or split knobs can be used to support droplight. See plan. 116. Where lights are to be installed that are used for portable purposes, or where
Сторінка 872 - of 1841 and 1842, under which the assessors are required to "assess rate and value every subject of taxation according to the actual value thereof, and at such rates and prices as the same would bring at a bona fide sale after due notice.
Сторінка 943 - Deposits.—Since the term laterite has been so loosely used, it is necessary to adopt a definition as a basis for further discussion, Clarke 31 defines laterite as "essentially a mixture of ferric hydroxide, aluminum hydroxide, and free silica in varying proportions.
Сторінка 977 - in the Burro Mountains, which vary from a fraction of an inch to a foot or more in width, are
Сторінка 151 - These silicates are rarely if ever found as definite mineral species, although they have been described as such." One called nepouite has, however, the same formula as nickel-serpentine, 3(NiMg)0, 2Si0 2 .2H 2 0, or (NiMg) 3 Si 2 0 7 , 2H
Сторінка 219 - writer's opinion that the capillary action of water in sand has as much to do with holding gas pressure back as anything. It has been suggested that in territory where upper waters corrode iron and steel very fast, a 10-in. water string practically immune to this corrosion may be obtained as follows: Carry a
Сторінка 219 - string within a few feet of the point where water is to be shut off. This string may be as light and cheap as it is practical to carry, since the burden of sustaining the collapsing pressure of the water does not fall on it. Then land a 10-in. water string inside of this
Сторінка 239 - all fine, when they are laid in the wall side by side the monotony is broken. For the foreigners four-family tenements have proved quite satisfactory. These houses have a kitchen, a dining room and a family bedroom on the first floor, and two or three bedrooms on the second floor.
Сторінка 48 - Reservoir The granite itself exhibits three types of contact phenomena. On the southern edge of the batholith the contact is marked by a profusion of basic inclusions, normally under a foot in diameter, but ranging up to 50 ft. These inclusions are in general fine-grained diorite, slightly more basic than the batholith itself. They show a slight alteration on the