 | | Journal (volume) | | early, three masked tral Railroad, Erie, on the Colorado Cen- 40 miles from Denver, captured the engineer...tramway and sev- 1 The by lo wide feet in the clear. The ore factured here these single acting engines...employing Chinese at un- derground work, and the Union will look after this matter and all the other interests...000 in dividends during the year, §2,000,000. Mining and Scientific Press distributed among the fortunate...largely to the prosThe perity of this section of the county. business men of the town seems to be drifting |  | | Journal (issue) | | ..................... Early Days of the Gold and Tin Mining Industry in the Black Hills. By Dr. Titus................................... .............. Gold in Petrified Wood. By Walter S. Palmer ..... .....brief call on one of the pioneers of gem tourmaline mining in Maine-the late l\lr. Lorin B. Merrill. It so...stat es of the Union. ROCKS and MINERALS 100 Early Days of the Gold and Tin Mining Industry in the...Black Hills of South DAkota, a well capitalized mining concern, nan1ely, 'The Harney Peak Tin Compan;v |  | | Journal (volume) | | measurements with the number of persons employed in each district or split shall be sent the inspector before the...Ans. —The mining law recognizes but seven inspection districts as follows First District, Luzerne County...Second District, Lackawanna, Suland Wayne, with six inspectors; Third District, Carbon County with one...one inspector; Fourth District, Schuylkill County such data being preserved at the mine known with...with four inspectors; Fifth District, device for recording their speed or for a period of 3 months. Cross- |  | | Book | | UNDERGROUND Mining Methods Engineering Fundamentals and International Case Studies Edited by William...for Mining, Metallurgy, and Exploration, Inc. (SME) 8307 Shaffer Parkway Littleton, Colorado, USA 80127...minerals professionals. Copyright 0 2001 Society for Mining, Metallurgy, and Exploration, Inc. All Rights Reserved...and are not necessarily those of the Society for Mining, Metallurgy, and Exploration, Inc. The mention...Congress Cataloging-in-PublicationData Underground mining methods : engineering fundamentals and international |  | | Journal (issue) | | Men tone, Collfornio 92359. Wood In Eostern Colorado by E,ugene M. Beason · · · · ·-··-·.............neor this graceful notu rol brid9e over Lo Prele Creek near Douglas, Wyoming. Photo by Wyoming Travel Commis...mechanism is a crankshaft geared down to about the right speed to drag a rock over a grinding wheel. The...visible, and so is the built-in start;ing switch, at upper left. A firm but yielding presstue of rock against...itself as the wrist pin because it gave about the right amount of throw to the clamp. The rod is retained |  | | Book (volume) | | in that plane. More formally, a dihedron is the union of two half-planes that share the same boundary...substrate, often crystalline quartz, has a polished upper surface on which two transducers, denoted 7, with...source through an electrical matching network. The right-hand output transducer drives the load R,;, usually... Fig. 2c). Thus, response, V trodes at the right end of each interdigital transducer are spaced by...semigloss enamels are also made. Varnishes are clear, unpigmented coatings, made by dissolving a resin |
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