 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...  Sundry Civil Bill, 1916, Hearings . . . 63rd Congress, 3d Session - 662 페이지저자: United States. Congress. House Appropriations - 1915 - 1010 페이지전체보기 - 도서 정보
 | Geologiska föreningen (Sweden) - 1916 - 748 페이지
...investigatious concerning mining, aud the prcparation, treatmenl, and utilization of mineral substam-cs with a view to improving health conditions and increasing safety, efficiency, economic development, and cunserving rcsources through the prevention of waste in the mining, quarrying. metallurgical, and other... | |
 | United States - 1917 - 706 페이지
...technologic investigations concerning the mining, preparation, treatment, and utilization of ores etc. and other mineral substances, with a view to improving...efficiency, economic development, and conserving resources througn the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries;... | |
 | 1918 - 892 페이지
...aud technologic investigations concerning mining, in the preparation, treatment, and utilization of mineral substances with a view to Improving health...resources through the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries ; investigations of explosives and peat; and... | |
 | 1910 - 594 페이지
...and technologic investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with a view to improving health...resources through the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries; to inquire into the economic conditions affecting... | |
 | United States - 1914 - 1302 페이지
...and technologic investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with a view to improving health...resources through the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries ; to inquire into the economic conditions affecting... | |
 | United States. Department of the Interior - 1914 - 986 페이지
...scientific and technologic investigations concerning * * * the preparation, treatment, and utilization of mineral substances with a view to improving health conditions and increasing safety * * * in the * * * metallurgical and other mineral industries." The fatality rate in metal mining is... | |
 | United States. Department of the Interior - 1914 - 1082 페이지
...scientific and technologic investigations concerning * * * the preparation, treatment, and utilization of mineral substances with a view to improving health conditions and increasing safety * * * in the * * * metallurgical and other mineral industries." The fatality rate in metal mining is... | |
 | United States. Congress. House. Committee on Appropriations - 1915 - 1022 페이지
...Pittsburgh. MINING, PREPARATION, TREATMENT, ETC., OF ORES AND OTHER MINERALS RADIUM IN VESTIGATION 8. The CHAIRMAN. The next item is, '' For inquiries and...mining, (marrying, metallurgical, and other mineral industries.'" etc., ami the appropriation is $100.000. and your estimate is $100,000. Under this appropriation... | |
 | 1915 - 976 페이지
...those so employed during the fiscal year 1913, $135,000; For inquiries and scientific and teclinologic investigations concerning the mining, preparation,...efficiency, economic development, and conserving resources tlirough the prevention of waste hi the mining, quarrying, metallurgical, and other mineral industries... | |
 | United States. Bureau of Mines - 1915 - 128 페이지
...Investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with » view to improving health conditions, and Increasing...resources through the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries; to inquire into the economic conditions affecting... | |
| |
