 Interior, to make diligent Investigation of the methods of mining, especially In relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible Improvement of conditions under which mining operations...  The National Currency: April 6, 1864de L. Bonnefoux - 1864 - 19 páginasVisualização completa - Sobre este livro
 | United States. Congress. House. Committee on Appropriations - 1922 - 968 páginas
...mining, especially in relation to the safety of miners, the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidents, and other inquiries, and technologic... | |
 | United States. President - 1922 - 678 páginas
...appliances best adapted to prevent accidents, the possible Improvement of conditions under which minine operations are carried on, the treatment of ores and other mineral substances, tbe use of explosives and electricity, the prevention of accidents, and other Inquiries and technologic... | |
 | William Franklin Willoughby - 1923 - 326 páginas
...safety of miners and the appliances best adapted to prevent accidents ; the possible improvement of the conditions under which mining operations are carried...prevention of accidents; and "other inquiries and technological investigations pertinent to said industries." The scope of the bureau was considerably... | |
 | American Society for Steel Treating - 1923 - 1028 páginas
...especially in relation to the safety of miners, and the appliances best adapted to prevent accident, the possible improvement of conditions under which...substances, the use of explosives and electricity and other inquiries of technologic investigations pertinent to said industries." For a number of years... | |
 | United States, United States. Bureau of the Budget - 1923 - 1144 páginas
...mining, especially in relation to the safety of miners, the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidente, and other inquiries and technologic... | |
 | United States. Bureau of the Budget - 1923 - 1086 páginas
...mining, especially in relation to the safety of miners, the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidents, and other inquiries and technologic... | |
 | James Washington Paul, Lee Clyde Ilsley, Ernest J. Gleim - 1924 - 292 páginas
...especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...pertinent to said industries, and from time to time to make such public reports of the work, investigations, and information obtained as the Secretary... | |
 | United States. Congress. House. Committee on Appropriations - 1924 - 1090 páginas
...prevent accidents, the possible inprovement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention...inquiries and technologic investigations pertinent to the mining industry, including all equipment, supplies, and expenses of travel and subsistence, $359,768.... | |
 | United States. Congress. House. Committee on Appropriations - 1924 - 1064 páginas
...mining, especially in relation to the safety of miners, the appliances best adapted to prevent accidents, the possible improvement of conditions under which mining operations are carried on, the use of explosives and electricity, the prevention of accidents, and other inquiries, and technologic... | |
 | George Cyrus Thorpe - 1925 - 1324 páginas
...especially in relation to the safety of miners and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...explosives and electricity, the prevention of accidents, the prevention of waste, and the improvement of methods in the production of petroleum and natural... | |
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