 | 1922 - 590 pages
...with the investigation of the methods of mining, especially in relation to the safety of miners and the appliances best adapted to prevent accidents,...under which mining operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention... | |
 | Brookings Institution. Institute for Government Research - United States - 1922 - 182 pages
...conditions under which mining operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention...inquiries and technologic investigations pertinent to said industries, and from time to time make such public reports of the work, investigations, and information... | |
 | Fred Wilbur Powell - 1922 - 184 pages
...conditions under which mining operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention...inquiries and technologic investigations pertinent to said industries, and from time to time make such public reports of the work, investigations, and information... | |
 | United States. President - Presidents - 1922 - 678 pages
...under which minine operations are carried on, the treatment of ores and other mineral substances, tbe use of explosives and electricity, the prevention...Inquiries and technologic Investigations pertinent to said Industries, and from time to time make such public reports of the work. Investigations and information... | |
 | United States, United States. Bureau of the Budget - Budget - 1923 - 1144 pages
...Bureau of Mines — Continued. 'nveitigating Mine Accidents — For investigations ae to the causes of mine explosions, methods of mining, especially in...use of explosives and electricity, the prevention of accidente, and other inquiries and technologic investigations pertinent to the mining industry, and... | |
 | William Franklin Willoughby - Executive departments - 1923 - 326 pages
...under which mining operations are carried on; the treatment of ores and other mineral substances ; the use of explosives and electricity, the 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 - Metallurgy - 1923 - 1028 pages
...especially in relation to the safety of miners, and the appliances best adapted to prevent accident, the possible improvement of conditions under which mining operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity and other inquiries... | |
 | United States. Congress. House. Appropriations - 1924 - 1022 pages
...INVESTIGATING MINE ACCIDENTS Mr. CRAMTON. The next item is as follows : For investigations as to the causes of mine explosions methods of mining, especially in relation...Inquiries, and technologic Investigations pertinent to tbe mining industry, including all equipment, supplies, and expenses of travel and subsistence, $400,000.... | |
 | James Washington Paul, Lee Clyde Ilsley, Ernest J. Gleim - Safety lamps - 1924 - 292 pages
...diligent investigation of the methods of mining, especially in relation to the safety of miners, and the appliances best adapted to prevent accidents,...under which mining operations are carried on, the treatment of ores and other mineral substances, the use of explosives and electricity, the prevention... | |
 | United States. Congress. House. Committee on mines and mining - 1924 - 120 pages
...the safety of mines and the appliances best adapted to prevent accidents, the possible improvement under which mining operations are carried on, the use of explosives and elec triclty, and the prevention of accidents." The work of the bureau relating to coal-mine safety... | |
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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 are carried on,... 
