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" That it shall be the province and duty of said bureau and its director, under the direction of the Secretary of the Interior, to make diligent investigation of the methods of mining, especially in relation to the safety of miners, and the appliances best... "
Official Congressional Directory - Page 288
by United States. Congress - 1914
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Mining and Engineering World, Volume 28

Mineral industries - 1908
...of the United States; to make diligent investigation of the methods of mining, the safety of miners, the possible improvement of conditions under which...operations are carried on, the treatment of ores, the use of explosives and electricity, the prevention of accidents, the values of mineral products...
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To Provide Additional Mine Rescue Stations, Etc., Looking to Greater Sefty ...

United States. Congress. Senate. Committee on Mines and Mining - 1924 - 107 pages
...the bureau reads : " It shall be the province and duty of said bureau to make diligent investigation of the methods of mining, especially in relation to the safety of mines and the appliances best adapted to prevent accidents, the possible improvement under which mining...
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