 | Administrative agencies - 1922 - 184 pages
...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... | |
 | Fred Wilbur Powell - 1922 - 184 pages
...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. Congress. House. Appropriations - 1922 - 972 pages
...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 - Presidents - 1922 - 678 pages
...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 - Executive departments - 1923 - 326 pages
...safety of miners and the appliances best adapted to prevent accidents ; the possible improvement of the conditions under which mining operations are carried...substances ; the use of explosives and electricity, the prevention of accidents; and "other inquiries and technological investigations pertinent to said... | |
 | United States. Bureau of the Budget - Budget - 1923 - 1086 pages
...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, United States. Bureau of the Budget - Budget - 1923 - 1144 pages
...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... | |
 | James Washington Paul, Lee Clyde Ilsley, Ernest J. Gleim - Safety lamps - 1924 - 292 pages
...especially in relation to the safety of miners, and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...substances, the use of explosives and electricity, the prevention of accidents, and other inquiries and technologic investigations pertinent to said industries,... | |
 | United States. Congress. House. Committee on Appropriations - 1924 - 1064 pages
...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 - Executive departments - 1925 - 1324 pages
...especially in relation to the safety of miners and the appliances best adapted to prevent accidents, the possible improvement of conditions under which...substances, the use of explosives and electricity, the prevention of accidents, the prevention of waste, and the improvement of methods in the production... | |
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That it shall be the province and duty of said bureau and its director, under the direction of the Secretary of the Interior, to make diligent investigation of the methods of mining, especially in relation to the safety of miners and the appliances best... 
