Search U.S. government technical reports digitized or harvested by TRAIL.
Volatilization of impuities from zinc concentrates
Mining methods and costs at Granada Gold Mines, Ltd., Rouyn, Quebec
Mining laws of New Caledonia and French Oceania
Mine explosions and fires in the United States during the fiscal year which ended June 20, 1932
Mining methods and costs at Plant C, Eliot, Calif., of the Pacific Coast Aggregates (Inc.)
Mining laws of French Indo-china
Metal-mine fires and ventilation
An international viewpoint on safeguarding electrical equipment used in gassy mines
Coke-oven accidents in the United States :during the calendar year 1932
Solubility and liberation of gas from natural oil-gas solutions
Unwatering flooded coal mines in Washington
Explosive properties of acetone-air mixtures
Protection of equipment containing explosive acetone-air mixtures by the use of diaphragms
A study of roof in Pennsylvania mines contiguous to Monongahela River
Falls of roof in mines operating in the Pittsburgh Coal Bed, West Virginia
The present status of the mineral industry
Washability studies of coal from the Henry Ellen Bed at Acmar No. 5 Mine, Acmar, Ala.
The Development of an Electrolytic Method for the Determination of Inclusions in Plain-Carbon Steels
Coal-Mine Accidents in the United States: 1931
Metal-Mine Accidents in the United States During the Calendar Year 1931
Quarry Accidents in the United States During the Calendar Year 1931
Estimate of the Gas Reserves of the Oklahoma City Oil Field, Oklahoma County, Oklahoma
Working an underground mine 6 years without lost-time accidents
Mining laws of British North Borneo
List of permissible mine equipment
Explosions in Pennsylvania coal mines, 1870-1932
Accident experience and costs in Colorado metal mines
Mining laws of French Equatorial Africa, West Africa, Cameroun, and Togo
Milling methods and costs at the Golden Cycle Mill, Colorado Springs, Colo.