Browse TRAIL Inventories

Laboratory and field tests of a permissible indicating methane detector

A study of the Marshall-Bird test for determining the agglutinating value of coal

Washability studies of the Clark Seam at Marvel, Alabama

Grinding and classification.

Nine years of smoke-abatement work at Salt Lake City

Flotation reagents, 1928

Use of ethyl mercaptan to detect leaks in natural-gas distribution systems

Cooperative research between the United States Bureau of Mines and the Safety in Mines Research Board

Toxicity of dichloro-difluoro methane :a new refrigerant

Official changes in the active list of permissible explosives and blasting devices for March, 1930

Roasting of chromite ores to produce chromates :a study of effects of various reagents and impurities on oxidation reactions

The power consumed by rotating disks and other shaped objects in fluid mediums

The sand and gravel safety contest of 1929

A new flame safety-lamp testing and demonstration apparatus

Official changes in the active list of permissible explosives and blasting devices for June, 1930

Dissolution of various manganese minerals

Test of ampoules filled with palladium salt solution for detecting carbon monoxide

Tests of the strength of concrete stoppings designed to resist the pressure of explosions in coal mines

Concentration tests on the mangniferous iron ores of the Cuyuna district, Minnesota

Hauling coal safely with permissible storage-battery locomotives

The lower limits of inflammability of natural gas-air mixtures in a large gallery

Influence of washing coal on coke properties and on gas and by- product yields

Increased recoveries of phosphate in the land-pebble district of Florida

Survey of fuel consumption at refineries in 1929

Review of fatalities in the California petroleum industry during the calender year 1929

Leaching copper ores :advantages of wet-charging

Rock-dusting in coal mines of the State of Washington

Gravity concentration on certain Florida phosphatic sands

The use of boiler feed-water heater with steam-powered rotary drilling equipment

Active list of permissible explosives and blasting devices approved prior to June 30, 1930.

Some experiments on the initiation of coal-dust explosions by gas explosions

Official changes in the active list of permissible explosives and blasting devices for September, 1930

The use and value of air analyses in Illinois mines

Official changes in the active list of permissible explosives and blasting devices for October, 1930

Concentration of chromite

Concentration tests on tailings from the washing plants on the Mesabi Range, Minnesota

Caesium, rubidium, and lithium

List of manufacturers of permissible equipment and explosion-proof accessories, as of January 1, 1930

Automatic derailing switch at Roslyn no. 3 mine, Northwestern Improvement Company, Roslyn, Wash.

Comparative advantages of applying several geophysical methods of prospecting to the same territory

Mining methods and costs, American Zinc Co. of Tennessee, Mascot, Tenn.

Mining practice at Harmony Mines Co., Baker, Idaho

Mining practices, methods, and costs at mine no. 5 of the Marquette Range, Michigan

Mining practice at the Pecos mine of the American Metal Co. of New Mexico

Mining laws of Italy

What the superintendent of a coal mine might do to prevent injury from falls of roof

Selected list of Bureau of Mines publications covering safety studies and activities of the electrical section

Study of quarry costs :trap rock, sandstone, granite

Methods and costs of concentrating tungsten ore at the Nevada Massachusetts Mill, Mill City, Nevada

Performance tests for trailing cables


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