 | United States. Congress. House. Committee on Appropriations - 1936 - 1682 페이지
...mining, preparation, treatment, and utilization of ores and mineral substances, other than fuels, with a view to improving health conditions and increasing...the economic conditions affecting these industries; and including all equipment, supplies, expenses of travel and subsistence, and the purchase, not to... | |
 | United States. Congress. House. Committee on Appropriations - 1936 - 1226 페이지
...mining, preparation, treatment, and utilization of ores and mineral substances, other than fuels, with a view to improving health conditions and Increasing...and conserving resources through the prevention of wnste In the mining, quarrying, metallurgical, and other mineral industries ; to inquire into the economic... | |
 | United States. U.S. Congress. Senate. Committee on education and labor - 1936 - 98 페이지
...investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with a view to improving health conditions, and increasing...safety, efficiency, economic development, and conserving resourced through the prevention of waste in the mining, quarrying, metallurgical, and other mineral... | |
 | United States. Congress. House. Committee on Appropriations. Subcommittee on Interior Department Appropriations - 1936 - 1412 페이지
...mining, preparation, treatment, and utilization "f ores and mineral substances, other than fuels, with a view to improving health conditions and increasing safety, efficiency, economic development, and f'Mserving resources through the prevention of waste in the mining, quarrying metallurgical, and other... | |
 | United States. Congress. Senate. Committee on Education and Labor - 1936 - 120 페이지
...the improvement of conditions, methods, and equipment, with special reference to health, safety, and prevention of waste in the mining, quarrying, metallurgical, and other mineral industries; the use of explosives and electricity, safety me'thods and appliances, and rescue and first-aid work... | |
 | United States. Congress. Senate. Committee on Finance - 1939 - 1104 페이지
...personal services in the District of Columbia ; 722 76TH CONG., IST SESS.— CH. 119— MAY 10, 1939 with a view to improving health conditions and increasing...the economic conditions affecting these industries ; and including all equipment, supplies, expenses of travel and subsistence, and the purchase, not... | |
 | United States. Congress. Senate. Committee on Appropriations - 1937 - 982 페이지
...investigations concerning mining, and the preparation, treatment, and utilization of mineral substances with a view to improving health conditions, and increasing...quarrying, metallurgical, and other mineral industries; * * * and to disseminate information concerning these subjects in such manner as will best carry out... | |
 | United States. Congress. House. Committee on Appropriations - 1937 - 1942 페이지
...improving healt'i conditions and increasing safety, efficiency, economic development, and conser ing resources through the prevention of waste in the mining,...the economic conditions affecting these industries; and including all equipment, supplies, expenses of travel and subsistence, and the purchase, not to... | |
 | United States. Dept. of the Interior - 1937 - 1030 페이지
...mineral substances with a view to improving health conditions and increasing safety, efficiency, and economic development, and conserving resources through...quarrying, metallurgical, and other mineral industries. In accordance with the duties delegated to the Bureau by the enabling act, many of its technologic... | |
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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... 
