 Interior, to make diligent Investigation of the methods of mining, especially In relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible Improvement of conditions under which mining operations...  The National Currency: April 6, 1864de L. Bonnefoux - 1864 - 19 páginasVisualização completa - Sobre este livro
 | United States - 1917 - 706 páginas
...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, and other inquiries and technologic... | |
 | United States. Department of the Treasury - 1911 - 498 páginas
...especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...investigations, and information obtained as the Secretary o£ said department may direct, with the recommendations of such bureau. Countries. Monetary unit.... | |
 | 1918 - 892 páginas
...especially In relation to the safety of miners and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...the prevention of accidents, and other inquiries and technological investigations pertinent to such industries. He also has charge of tests and analyses... | |
 | 1911 - 644 páginas
...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, and other inquiries and technologic... | |
 | United States. Congress. House. Committee on Mines and Mining - 1908 - 70 páginas
...Mr. DOUGLAS. It reads : " To make an investigation of the methods of mining, 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, the prices of products and markets... | |
 | United States. Dept. of the Interior - 1910 - 130 páginas
...especially in relation to the safety of miners, and the appliances best adapted to preventing accidents, the possible improvement of conditions under which...pertinent to said industries, and from time to time to make public reports of the work, investigations, and information obtained as the secretary of said... | |
 | 1910 - 1240 páginas
...relation to the safety of miners, and the appliances beat adapted to prevent accidents, the poerible Improvement of conditions under which mining operations...Investigations pertinent to said Industries, and from tin e to time make such public reports of the work. Investigations and information obtained as the... | |
 | United States - 1910 - 886 páginas
...especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...inquiries and technologic investigations pertinent Pott, p. юз. to said industries, and from time to time make such public reporta of the work, investigations,... | |
 | 1911 - 646 páginas
...especially In relation to the safety of miners, and the appliances best adapted to preventing accidents, the possible improvement of conditions under which...pertinent to said industries, and from time to time to make public reports of the work, investigations, and Information obtained as the secretary of said... | |
 | United States. Department of the Interior - 1911 - 646 páginas
...especially in relation to the safety of miners, and the appliances best adapted to preventing accidents, the possible improvement of conditions under which...pertinent to said industries, and from time to time to make public reports of the work, investigations, and information obtained as the secretary of said... | |
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