Search U.S. government technical reports digitized or harvested by TRAIL.
Effect of sized ore on blast-furnace operation
Natural-gasoline plants in the United States :January 1, 1930
Petroleum refineries in the United States, January 1, 1930
Coal-Mine Fatalities in the United States, 1928
Metal-Mine Accidents in the United States During the Calendar Year 1928
Quarry Accidents in the United States During the Calendar Year 1928
Deposits of titanium-bearing ores :by E.P. Youngman.
Method and costs of treatment at the Calumet & Hecla reclamation plant
Privately owned mine rescue stations
Mining practices, methods, and costs at Mine No. 4 of the Marquette Range, Michigan
Commercial Possibilities of the Texas-New Mexico Potash Deposits
Reducing accidents from falls of roof in coal mines
Activity of the Holmes Safety Association in reducing accidents in Alabama
Railroad fuel-oil consumption in 1928
Teaching safety through the approval plate
List of permissible mining equipment
Mining methods and costs at the Hecla and Star mines, Burke, Idaho
Mining method and costs at the Utah Copper Co., Bingham Canyon, Utah
Mining methods at the Morning mine of the Federal Mining and Smelting Company, Mullan, Idaho
Safety in Utah coal mining as affected by haulage
Data on metal-mine ventilation in 1929
Mining methods, practices, and costs of the Cananea Consolidated Copper Co., Sonora, Mexico
The work of the United States Bureau of Mines
Mining methods and costs at the Engels Mine, Plumas County, Calif.
Points to be considered in the design of covers for explosion-proof compartments
Suggested safety rules for installing and using electrical equipment in coal mines
Mining laws of the Belgian Congo
Mining laws of Germany (Prussia)
Selected bibliography and map of manganese deposits of the United States by districts
Mine safety and accident economy in Colorado metal mines
Some check in and out systems for coal mines
Safety committees in the coal mines of the state of Washington
Method and cost of mining tungsten ore at the Nevada-Massachusetts Co. mines, at Mill City, Nev.
Milling methods and costs at the Harmony mines, Baker, Idaho
Mining methods and costs at the Park Utah Mine, Park City, Utah