 | United States - 1917 - 706 sider
...increasing safety, efficiency, economic development, and conserving resources througn the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries; and including nüne osting minerai ruéis, £r?w'™- , ,„ all equipment, supplies, expenses of travel,... | |
 | 1910 - 594 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries ; to investigate explosives, etc., and to disseminate information concerning these subjects." Congress... | |
 | United States - 1914 - 962 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries; to investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | United States. Department of the Interior - 1914 - 1082 sider
...Increasing safety, efficiency, economic development, and conserving resources through the prevention of waste In the mining, quarrying, metallurgical,...the economic conditions affecting these industries; to Investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | United States - 1914 - 1302 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries ; to investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | 1915 - 976 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries; to investigate explosives and peat ; and on behalf of the Government to investigate the mineral fuels... | |
 | United States. Bureau of Mines - 1915 - 128 sider
...Increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries; to investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | United States. Department of the Interior - 1915 - 1040 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste In the mining, quarrying, metallurgical, and other mineral Industries; to inquire Into tlie econotuic conditions affecting these Industries; * • * to Investigate the mineral fuels and... | |
 | United States. Department of the Interior - 1916 - 1232 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these Industries; to Investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | United States. Comptroller of the Treasury - 1916 - 788 sider
...increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical,...the economic conditions affecting these industries: to investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
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... with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through the prevention of waste in the mining, quarrying, metallurgical, and other mineral industries; to inquire into the... 
