TRAIL - Technical Report Archive and Image Library

Production of Crude Ammonia-Synthesis Gas from North Dakota Lignite in an Annular-Retort Gasifier

Survey of Fire-Fighting Facilities at Coal Mines

Beneficiation of Iron-Copper Ores from Kasaan Peninsula, Prince of Wales Island, Alaska

Geologic Factors Related to Block Caving at San Manuel Copper Mine, Pinal County, Arizona: Progress Report, April 1954-March 1956

Low-Temperature Carbonization Assays of North American Coals

National Motor-Gasoline Survey: Winter 1956-57

Mining Methods and Costs: La Sal Mining & Development Co., La Sal Uranium Mine, San Juan County, Utah

National Motor-Gasoline Survey: Summer 1956

Molybdenum: A Materials Survey

Accidents from explosives at metal and nonmetallic mines

American Standard Recommended Practice for Drainage of Coal Mines (M6.1-1955, UDC 622.5)

Development of the Fischer-Tropsch Oil-Recycle Process

Combustion of Solid Fuels in Thin Beds

Mine Flood Prevention and Control: Anthracite Region of Pennsylvania, Final Report of the Anthracite Flood-Prevention Project Engineers

Syllabus of Clay Testing

Micro-Seismic Method of Determining the Stability of Underground Openings

Fires, gases, and ventilation in metal and nonmetallic mines

Characteristics and Analyses of Ninety-Two Colorado Crude Oils

A Convenient Table for Determining Metastable Transitions in Mass Spectra

Volatilization of tin chlorides from slime

Examination of copper-lead-zinc deposits, Cabarrus and Union Counties, N.C.

Relationship of composition to thermal stability in the huebnerite-ferberite series of tungstates

Effects of substituting various high-and low low-volatile coals in foundry-coke blends carbonized in the Tuscaloosa and sole-heated ovens

Analyses of crude oils from 470 important oilfields in the United States

Phosphate rock(in two parts) :

Shaft-sinking methods and costs at the T.L. Shaft, Eureka Corp., Eureka, Nev.

Open-pit copper mining methods and practices at the Chino Mines Division, Kennecott Copper Corp., Grant County, N. Mex.

Block caving in limestone at the Crestmore Mine, Riverside Cement Co., Riverside, Calif.

Chemical solidification of soil in tunneling at a Minnesota iron-ore mine

Coal-mine ventilation without doors to control main air currents

Injury experience in coal mining, 1953-54 :analysis of mine safety factors, related employment, and production data

Fuel-briquetting plants in the United States that reported production in 1956

Spodumene :major source of lithium

Engineering control of health and safety hazards in uranium mines

Bibliography of investment and operating costs for chemical and petroleum plants, July 1954-December 1956

Roof-bolt recovery in the middle west

Manganese deposits of western Arizona

Coke plants in the United States as of December 31, 1957

Bibliography of zirconium :supplement to information circular 7771

Peat producers in the United States that reported production in 1956

Packaged-fuel plants in the United States that reported production in 1956

Mechanism of the synthesis of hydrocarbons from carbon monoxide and hydrogen

Discovery and development of the Pima copper deposit, Pima Mining Co., Pima County, Ariz.

Active list of permissible explosives and blasting devices approved before December 31, 1957

Permissible mine equipment approved during the calendar years 1955-56 :with appended list of manufacturers of flame resistant trailing cables and fire-resistant conveyor belts

Recommended safety standards for surface auger mining.

Fire-protection system, Allen Coal Mine, Colorado Fuel and Iron Corporation, Stonewall (P.O., Weston), Las Animas County, Colo.

Exploration, development, and costs of the Stormy Day Tungsten Mine, Pershing County, Nev.

Using precast reinforced-concrete sets in the Pioneer Tunnel of Great Northern Railway's Cascade Tunnel, King County, Wash.

Peat producers in the United States that reported production in 1957

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