Search U.S. government technical reports digitized or harvested by TRAIL.
Method and cost of quarrying limestone at the plant of the Calaveras Cement Co., San Andreas, Calif.
Growth and development of nonmetallic mineral industries
Some notes on methods and costs of equipping and developing prospects
Saving life by barricading in mines and tunnels at times of disaster
Mining laws of Chosen (or Korea)
Diamond drilling at the United Verde mine
Portable electric lamps for animal haulage in Alabama
Flotation processes for cleaning fine coal
Mining laws of Surinam (Dutch Guiana)
Timber withdrawing and devices used for this purpose in some coal mines
Factors and conditions that aid in alinement of pillar extraction lines in coal mining
Milling methods at the lead-zinc concentrator of the International Smelting Co., Tooele, Utah
Explosions in Utah coal mines, 1900-1932
Essentials for a preliminary report on a small lode-gold mine or prospect, with notes on sampling
Use of electric power in Castle Gate No. 2 mine, Utah Fuel Co.
Mining methods and costs at the McIntyre Porcupine Mines, Ltd., Schumacher, Ontario
Petroleum and natural-gas studies of the United States Bureau of Mines
Protective clothing in the mining industry
The Experimental mine of the United States Bureau of Mines
Mining laws of the Irish Free State
Petroleum refineries, including cracking plants, in the United States, January 1, 1933
Economic aspects of gold and silver
Blasting practices as they affect the roof of coal mines in Ohio, Pennsylvania, and West Virginia
Accident prevention at the New Black Diamond Coal Mine, Washington
Design, equipment, and construction costs of Davis-Dunkirk concentrator, Prescott, Ariz.
Explosives accidents in California metal mines
Evolution of methane detecting devices for coal mines
Development of sand and gravel deposits
Manganese :general Information
Production of explosives in the United States :during the calendar year 1932
Accidents at metallurgical works in the United States :during the calendar year 1931