TRAIL - Technical Report Archive and Image Library

Cyanidation of gold-silver ore from Manhattan, Nev.

Raw materials for the mineral-wool industry

Processes for recovering vanadium from western phosphates

Preparation characteristics of coal occurring in Westmoreland County, Pa.

Properties of Colorado oil shale

Zirconium-titanium system: constitution diagram and properties

Synthetic liquid fuels :annual report of the secretary of the interior for 1950.

Design, construction, and operation of a distillation laboratory for the synthetic liquid fuels program

Simple treatment methods for oxide gold and silver ores

Synthetic liquid fuels :annual report of the secretary of the interior for 1950

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.

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

Flammability of mixtures of individual paraffin-hydrocarbon gases with air and added nitrogen at subatmospheric pressures

Effects of water flooding on reservoir temperatures and wax precipitation in the Bradford, Pa., oil field

Concentration of oxide manganese ore from Doyle-Smith claims, Northern Yuma County, Ariz.

Diamond drilling the gypsum camel prospect, Iyoukeen Cove, Chichagof Island, southeastern Alaska

Diamond orientation in diamond bits :a method of identifying hard vectors for setting purposes

Preparation characteristics of coal from Pike County, Ky.

Soda sinter process for treating low-grade titaniferous ores

Natural-gasoline and cycle plants in the United States, January 1, 1952

Successful use of wooden roof bolts in Stony Point Mine, Stony Point Coal Co., Hopkins County, Ky.

A quarter century of fuel-oil sales :1926-50

Modern automatic electrically controlled elevators for transporting men at two coal mines in Western Pennsylvania

Natural-gas statistics, 1936-50

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

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