Search U.S. government technical reports digitized or harvested by TRAIL.
Accident prevention in coal mining
Shaft sinking at the Sevier Valley Coal Co. mine
Connection between physical condition and liability to accidents of metal miners
What the mine foreman can do to prevent injury from falls of roof in coal mines
Mining methods and costs at the Pilares mine, Pilares de Nacozari, Sonora, Mexico
Some hazards of conveyor loading in coal mines
Methods and costs of mining at Hartley-Grantham mine, Tri-State zinc and lead district
Driving rock slopes at the new Peerless mine
Safety achievements of a Pennsylvania bituminous-coal mine and of a coal-mine superintendent
The method of underground mining of iron ore in the district of Krivoy Rog
Practical application and cost of proper rock-dusting
Concentrator methods and costs at the Hayden Plant of the Nevada Consolidated Copper Co., Arizona
Mining methods of the Rosiclare Lead & Fluospar Mining Co., Rosiclare, Illinois
Mining methods at the Page mine of the Federal Mining and Smelting Co., Page, Idaho
Recent developments in the mining industry
List of permissible mine equipment
Mining methods and costs at the Teck-Hughes Gold Mines (Ltd.), Kirkland Lake, Ontario
Hazards and protection of underground transformer installations
The miner's ounce of prevention--the operator's pound of cure
Electrical blasting practice as some coal mines in state of Washington
Proposed standard smoke ordinance.
World reserves and resources of tin
Safety in connection with haulage practices in Alabama coal mines
Mining methods and costs at the Ground Hog Unit, Asarco Mining Co., Vanadium, New Mexico
The granite industry :dimension stone
Caesium, rubidium, and lithium
Automatic derailing switch at Roslyn no. 3 mine, Northwestern Improvement Company, Roslyn, Wash.
Comparative advantages of applying several geophysical methods of prospecting to the same territory
Mining methods and costs, American Zinc Co. of Tennessee, Mascot, Tenn.
Mining practice at Harmony Mines Co., Baker, Idaho
Natural-gasoline plants in the United States :January 1, 1930
Petroleum refineries in the United States, January 1, 1930