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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

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

Modified longwall mining with a German coal planer (plow) in the Pocohontas No. 4 coal bed, Helen, W. Va.

Development of new, experimental coke oven

A selected bibliography of coal gasification

Concentration tests on various base-metal ores

Investigation of the Colorado Copper Co. properties, Mesa, and Montrose Counties, Colo.

Treatment tests of scheelite ores and tailings

Development of a rotary test drill

Recovery of lithium from spodumene-amblygonite mixtures

Bumpus pegmatite deposit, Oxford County, Maine

Electrolytic manganese tests in cooperation with industry

Separation and utilization studies of bitumens from bituminous sandstones of the Vernal and Sunnyside, Utah, deposits. !n Part I,

Centrifugal testing apparatus for mine-structure stress analysis

Experimental treatment of barite ores from Montgomery County, Ark. and Morgan County, Mo.


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