 | L. Bonnefoux - 1864 - 778 páginas
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...may direct, with the recommendations of such bureau. 26 COINAGE LAWS OF THE UNITED STATES. SEC- 3- That tn.e Secretary of the Interior shall provide clerks,... | |
 | United States. Department of the Treasury - 1911 - 498 páginas
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...investigations, and information obtained as the Secretary o£ said department may direct, with the recommendations of such bureau. Countries. Monetary unit.... | |
 | 1911 - 644 páginas
...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 investigations pertinent to the mining industry, $360,000 ; for the investigation, analyzing and testing of the coals, lignites... | |
 | 1910 - 300 páginas
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...direct, with the recommendations of such bureau. SEC. 3. That the Secretary of the Interior shall provide the gaid bureau with furnished offices in the city... | |
 | United States. Dept. of the Interior - 1910 - 130 páginas
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...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
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents and other...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
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...inquiries and technologic investigations pertinent Pott, p. юз. to said industries, and from time to time make such public reporta of the work, investigations,... | |
 | United States. President - 1911 - 1346 páginas
...operations are carried on, tne treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...the work, investigations, and information obtained aa the Secretary of said department may direct, with the recommendations of such bureau. SEC. 3. That... | |
 | United States. Department of the Interior - 1911 - 646 páginas
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...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... | |
 | 1911 - 646 páginas
...operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention of accidents, and other...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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... 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 are carried on, the treatment of ores... 
