TRAIL - Technical Report Archive and Image Library

Performance of a pebble heater type steam superheaater

Selective flotation concentration of lead-zinc ores from the Musick and Helena mines, Bohemia District, Oreg.

Study of preheating Colorado oil shale

Explosibility of mixtures of propane, air, and carbon dioxide and of propane, air and nitrogen at elevated pressures

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

Treatment of timber

Safety in milling :Magma Copper Co., Superior, Ariz.

Some roof-control practices in coal mines of the United Kingdom

Process development in the hydrocarbon synthesis to 1941

The second underground gasification experiment at Gorgas, Ala.,

Universal type electrostatic separator

Preparation characteristics of coal occurring in Indiana County, Pa.

The short-circuiting contactor as an electrical protective device for coal-mine service

Concentration of oxide and silicate manganese ores from the vicinity of Golconda, Nev.

Concentration of carbonate and oxide manganese ores from Silver Bow, Jefferson and Park Counties, Mont.

Experimental treatment of oxidized lead-silver ore from Eureka, Nev.

Variance in characteristics of the oil in the Weber Sandstone Reservoir, Rangely field, Colorado

Acid-Mine-Drainage Problems: Anthracite Region of Pennsylvania

Helium-Bearing Natural Gases of the United States: Analyses and Analytical Methods

Studies of the Extraction and Coking of Coal and their Significance in Relation to its Structure

Fluid Flow Through Packed and Fluidized Systems

[Figure 1. Place and Direction From Which Figures 2 to 7 Were Taken and Relative Positions of Flooded Surface, Buried Valley of the Susquehanna, and Underlying Coal Measures and Mine Workings]

Anthracite mechanical mining investigations.

Roof-bolting the Delaware Aqueduct

Petroleum and natural-gas research program, Bureau of Mines, fiscal year 1951

Annual report of research and technologic work on coal :fiscal year 1951

Two-way radio communication at Santa Rita Open Pit, Kennecott Copper Corp., Santa Rita, N. Mex.

Truck haulage at an iron mine in the Adirondack Mountains, New York

Economic benefits of systematic roof bolting in Ziegler No. 3 Mine, Bell & Zoller Coal & Mining Co., Williamson County, Ill.,

List of respiratory protective devices approved by the Bureau of Mines

A practical method for teaching mine workers and officials use of gas-detecting equipment

Active list of permissible explosives and blasting devices approved before December 31, 1951

Petroleum refineries, including cracking plants, in the United States, January 1, 1952

Filling with unclassified tailing in modified cut-and-fill stopes, Dayrock Mine, Wallace, Idaho

Recommendations for improved shuttle-car-haulage safety

Economies through roof bolting in an Indiana coal mine

Underground storage of natural gas in coal-mining areas

Production of manganese slags for manufacturing high-grade ferromanganese by blowing oxidation spiegeleisen

State compensatory provisions for occupational diseases

Industrial minerals of the Pacific northwest

Volumetric determination of small quantities of Uranium,with special reference to errors associated with use of Jones reductor

Hazard of firing open, unconfined shots in coal mines

Some thermodynamic values for ferrous oxide

Ignition of coal dust by permissible explosives

Synthetic liquid fuelsannual report of the Secretary of the Interior for 1951.

The thermodynamics of combustion gases :general considerations

Beneficiation of oxide manganese ores from Arapahoe, Douglas, Saguache, Custer, Chaffee, and Park Counties, Colorado

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