 | 1915 - 976 стор.
...of mineral substances with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through...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 стор.
...of mineral substances with a view to Improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through...metallurgical, and other mineral Industries; to inquire Into tlie econotuic conditions affecting these Industries; * • * to Investigate the mineral fuels and... | |
 | United States. Congress. House. Committee on Appropriations - 1915 - 1022 стор.
...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, (marrying, metallurgical, and other mineral industries.'" etc., ami the appropriation is $100.000.... | |
 | United States. Congress. House Appropriations - 1915 - 1022 стор.
...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, (marrying, metallurgical, and other mineral industries."etc..and the appropriation is $100,000. and... | |
 | United States - 1916 - 1254 стор.
...of mineral substances with a view to improving health conditions, and increasing safety, efficiency, XDN ; to investigate explosives and peat ; and on behalf of the Government to investigate 1ле mineral... | |
 | United States. Department of the Interior - 1916 - 1232 стор.
...of mineral substances with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...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 стор.
...of mineral substances with a view to improving health conditions, and increasing safety, efficiency, economic development, and conserving resources through...the economic conditions affecting these industries: to investigate explosives and peat; and on behalf of the Government to investigate the mineral fuels... | |
 | United States. Congress. House. Committee on Appropriations - 1916 - 962 стор.
...other mineral substances, with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...the economic conditions affecting these industries^: J'roi itled, That no part thereof may be used for investigation in behalf of any private party, nor... | |
 | Iowa. Mine Inspectors - 1916 - 116 стор.
...of mineral substances with a view to improving health conditions and increasing safety, efficiency, economic development, and conserving resources through...the economic conditions affecting these industries; to investigate explosives, etc., and to disseminate information concerning these subjects." Congress... | |
 | United States. Congress. House Appropriations - 1916 - 966 стор.
...efficiency, economic development, and conserving resources through the prevention of waste in the ininiii;:. quarrying, metallurgical, and other mineral industries;...the economic conditions affecting these industries^: Provided, That no part thereof may be used for investigation in behalf of any private party, nor shall... | |
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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... 
