 | Geology - 1912 - 780 pages
...expenses when poor ground has to be worked through 5th. The small size of the 'areas' or claims, not as regards actual acreage, but in relation to the...plants of machinery for crushing and dressing the ores 6th. The disregard of the natural features of the ground, shown in locating the crushing and dressing... | |
 | R. Drummond - Mines and mineral resources - 1918 - 376 pages
...expenses when poor ground has to be worked through. Fifth — The small size of the areas or claims, not as regards actual acreage, but in relation to the...position and thickness of the veins. This necessitates the wasteful* multiplication of shafts and plants of machinery for crushing and dressing the ores.... | |
 | Institution of Mining and Metallurgy (Great Britain) - Metallurgy - 1926 - 552 pages
...expenses when poor ground has to be •worked through. (5) The small size of the ' areas ' or claims, not as regards actual acreage, but in relation to the...plants of machinery for crushing and dressing the ores. (6) The disregard of the natural features of the ground, shown in locating the crushing and dressing... | |
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The disregard of the natural features of the ground, shown in locating the crushing and dressing machinery without reference to the easy delivery of the material from the mine and the fall required for the perfect treatment of the ores, and for getting... 