Search U.S. government technical reports digitized or harvested by TRAIL.
A process for the recovery of gold from activated carbon by leaching and electrolysis
Investigation of Nightingale tungsten deposit, Pershing County, Nev.
Investigation of the Atolia tungsten mines, San Bernardino County, Calif.
Investigation of Cherry Creek tungsten district, White Pine County, Nev.
Investigation of Nevada Massachusetts tungsten deposits, Pershing County, Nev.
Buried Valley of the Susquehanna River: Anthracite Region of Pennsylvania
Information on the Prevention of Quarry Accidents
Investigation of Canyon Diggings zinc-lead deposit, Newton County, Mo.
The role of oxygen in the production of synthetic liquid fuels from coal
Performance of a pebble heater type steam superheaater
Study of preheating Colorado oil shale
Investigation of sodium sulfate deposits in Bull Lake, Carbon County, Wyo.
Investigation of the Cougar Spar fluorspar deposit, Beaver County, Utah
Investigation of Kasna Creek copper prospect, Lake Kontrashibuna, Lake Clark region, Alaska
Nodulization and pelletization of fluorite flotation concentrates
Safety in milling :Magma Copper Co., Superior, Ariz.
Some roof-control practices in coal mines of the United Kingdom
Statistical data on the mechanical cleaning of bituminous coal in the United States
Gas explosions and their prevention
Tunnel construction by peripheral sawing at the Fort Randall Reservoir, Pickstown, S. Dak.
Safety in hoisting at the United Verde Mine, Phelps Dodge Corp., Jerome, Ariz.
Petroleum and natural gas research program Bureau of Mines, fiscal year 1950
Suggestions for inspection of roof-bolt installations
Safety consciousness :an evaluation
Significance of laboratory tests of coal and coke for combustion
Physiological aspects of electrical accidents in the coal-mining industry
Analysis of haulage fatalities in coal mines :January-June 1951
Use of visual aids in the Morenci Branch safety program, Phelps Dodge Corp., Morenci, Ariz.
Falls of roof :the no. 1 killer in bituminous-coal mines
Why men were killed at Pennsylvania anthracite mines in 1950
Annual report of research and technologic work on coal :fiscal year 1950
Permissible mine equipment approved during the calendar year 1950
Mines and mineral deposits (except fuels) Gallatin County, Mont.
Ventilation-air heating plants of the Menominee Range
Allaying coal dust during operation of continuous-mining machines in Utah
Froth-flotation practice in coal-preparation plants of Western Europe and Great Britain
Bureau of Mines approval system for respiratory protective devices