Search U.S. government technical reports digitized or harvested by TRAIL.
Mining statutes of the state of Pennsylvania(summarized)
Clay-mining methods and costs at the Corunna (Mich.) pit of the Aetna Portland Cement Co.
Methods and costs of dredging auriferous gravels at Lancha Plana, Amador County, Calif.
Description of the property and operations at the Lewiston Dredge, Lewiston, Calif.
Accident experience and cost in Tennessee coal mines
Prospecting and exploration for sand and gravel
International Conference of Mine-Safety Research at Buxton, England, July 31, 1931
Methods and costs of mining ferberite ore at Cold Springs Mine, Nederland, Boulder County, Colo.
Safety practices at Mine 1, Spring Canyon Coal Co., Utah
Oil prospecting in Kentucky by resistivity methods,
Explosions in Colorado coal mines, 1833 to 1932
Consumption of silver in the arts and industries of the United States
Mining methods and costs at the New Cornelia Branch, Phelps Dodge Corporation, Ajo, Ariz.
Sand and gravel dredging methods and costs of J.K. Davison & Bro., Pittsburgh, Pa.
A study of high-manganese slags in relation to the treatment of low-grade manganiferous ores
Coke-oven accidents in the United States during the calendar year 1931
Safety organizations at lake Superior iron mines
A magnetic study of some iron deposits
Accident experience and cost of accidents at Washington metal mines and quarries
Falls of roof and coal in mines operating in the Sewickley coal bed in Monongalia County, W. Va.
Accidents at metallurgical works in the United States :during the calendar year 1930
List of motors available to prospective builders of permissible outfits
250 versus 500 volts or more for circuits in gassy coal mines
Selecting and training the refinery personnel to prevent accidents
Character of drainage from mines in the Thick Freeport coal bed, Pennsylvania
Economics of potash recovery from wyomingite and alunite
Sanitary surveys of coal-mining, metal-mining, and smelter towns of Utah
Analyses of crude oils from the Oklahoma City Field, Oklahoma