 | 1918 - 892 pagini
...publications contain the results of scientific aud technologic investigations concerning mining, in the preparation, treatment, and utilization of mineral...Improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
 | 1910 - 594 pagini
...Mines was established by an act of congress in the year 1910. The purpose and aim of the bureau is, "To conduct inquiries and scientific and technologic...improving health conditions and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
 | United States. Department of the Interior - 1914 - 1082 pagini
...province and duty of the Bureau of Mines, subject to the approval of the Secretary of the Interior, to conduct Inquiries and scientific and technologic...Improving health conditions and Increasing safety, efficiency, economic development, and conserving resources through the prevention of waste In the mining,... | |
 | United States - 1914 - 962 pagini
...province and duty of the Bureau of Mines, subject to the approval of the Secretary of the Interior, to conduct inquiries and scientific and technologic...improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
 | United States - 1914 - 1302 pagini
...province and duty of the Bureau of Mines, subject to the approval of the Secretary of the Interior, 0 A ӷ ΪҀ 0 * ΪҀ 0 + ΪҀ 0 - ... ʷ 6 , - / efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
 | United States. Department of the Interior - 1914 - 986 pagini
...of Mines * * * to conduct inquiries and scientific and technologic investigations concerning * * * the preparation, treatment, and utilization of mineral...health conditions and increasing safety * * * in the * * * metallurgical and other mineral industries." The fatality rate in metal mining is much the same... | |
 | 1915 - 976 pagini
...province and duty of the Bureau of Mines, subject to the approval of the Secretary of the Interior, to conduct inquiries and scientific and technologic...improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
 | United States. Bureau of Mines - 1915 - 128 pagini
...province and duty of the Bureau of Mines, subject to the approval of the Secretary of the Interior, to conduct inquiries and scientific and technologic...treatment, and utilization of mineral substances with » view to improving health conditions, and Increasing safety, efficiency, economic development, and... | |
 | United States. Congress. House Appropriations - 1915 - 1022 pagini
...technologic investigations concerning the mining, preparation, treatment, and utilization of ores and other mineral substances, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
 | United States. Congress. House. Committee on Appropriations - 1915 - 1022 pagini
...technologic investigations concerning the mining, preparation, treatment, and utilization of ores and other mineral substances, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining,... | |
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Interior, to conduct Inquiries and scientific and technologic Investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with a view to Improving health conditions and Increasing safety, efficiency, economic... 
