 | United States. Congress. House. Committee on the Census - Business - 1941 - 346 pages
...with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of...quarrying, metallurgical, and other mineral industries; to inquire into the economic conditions affecting these industries; to investigate explosives and peat;... | |
 | United States. U.S. Congress. House. Committee on the census - 1941 - 360 pages
...with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of...quarrying, metallurgical, and other mineral industries; to inquire into the economic conditions affecting these industries; to investigate explosives and peat;... | |
 | United States. Congress. House. Committee on Interstate and Foreign Commerce - 1941 - 122 pages
...with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of...quarrying, metallurgical, and other mineral industries." The Bureau has 14 regional experiment stations strategically situated with respect to the natural mineral... | |
 | United States - Law - 1983 - 1156 pages
...with a view to Improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of...quarrying, metallurgical, and other mineral industries; to inquire into the economic conditions affecting these industries; to investigate explosives and peat;... | |
 | United States. National Resources Planning Board - Executive departments - 1941 - 168 pages
...improving health conditions and increasing safety, efficiency, economic development, and the conserving of resources through the prevention of waste in the mining,...quarrying, metallurgical, and other mineral industries; (2) to inquire into the economic conditions affecting these industries ; (3) to investigate explosives... | |
 | United States. Congress. House. Committee on Appropriations. Subcommittee on Interior Department - Petroleum - 1941 - 2386 pages
...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 methods and appliances, and rescue and firstaid work... | |
 | United States. Congress. House. Committee on Appropriations - 1942 - 1136 pages
...with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of...quarrying, metallurgical, and other mineral industries; to inquire into the economic conditions affecting these Industries; to investigate explosives and peat... | |
| |
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... 
