Sinking Operation at Mein tyre No. 11 Shaft, Porcupine District, Northern Ontario

CIM Bulletin1928
IN the. mining industry, as in other business, one of the more satisfactory results of sincere but cheerful effort lies in the proper completion of undertakings and problems, which, to be successful, must continually hold the interest of all concerned in the work.
Keywords: blasting, board feet, Douglas fir, KEE, shaft, timber, Equipment, Operation, Rock, Rocks, Shafts, steel, Steels
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