 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...  Annual Report - The Secretary of the Interior - Page 27by United States. Dept. of the Interior - 1910Full view - About this book
 | United States. Congress. House. Appropriations - 1938 - 1694 pages
...methods of mining, especially in relation to the safety of miners, the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidents, statistical studies and reports relating... | |
 | United States. Congress. House. Committee on Appropriations - 1939 - 2006 pages
...methods of mining, especially in relation to the safety of miners, the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidents, statistical studies and reports relating... | |
 | United States. Bureau of Mines - Mines and mineral resources - 1945 - 1644 pages
...especially relation to the safety of miners, and the appliances test adapted to prevent accidents, the pass improvement of conditions under which mining operations are carried on, the treatment ores and other mineral substances, the use of explosives and electricity, the prevention of a dents,... | |
 | United States. Congress. House. Committee on the Census - Business - 1941 - 346 pages
...mining, especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions...pertinent to said industries, and from time to time make such public reports of the work, investigations, and information obtained as the Secretary of... | |
 | United States. U.S. Congress. House. Committee on the census - 1941 - 360 pages
...mining, especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions...pertinent to said industries, and from time to time make such public reports of the work, investigations, and information obtained as the Secretary of... | |
 | Mineral industries - 1942 - 1184 pages
...mining, especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions...pertinent to said industries, and from time to time make such public reports of the work, investigations, and information obtained as the Secretary of... | |
 | United States. Congress. Senate. Committee on Finance - United States - 1946 - 836 pages
...causes of falls of roof and coal, methods of mining, especially in relation to the safety of miners, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidents, statistical studies and reports relating... | |
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