Browse TRAIL Inventories

Entry of solutions into ores during leaching.

How to compute tables for determining electrical resistivity of underlying beds and their application to geophysical problems

Microscopic study of Elkhorn coal bed at Jenkins, Letcher county, Ky.

Safety at the Old Dominion copper mine, Globe, Ariz.

Geophysical abstracts.

Mine explosions and fires in the United States during the fiscal year ending June 30, 1931

List of permissible mine equipment

Feldspar gems :(Amazon stone, Moonstone, Sunstone, etc.)

Practical rules for the use of the magnetometer in geophysical prospecting

Mining laws of Latvia

Mining practices, methods, and costs at Elkoro mines, Jarbidge, Nev.

Geophysical abstracts.

Deep mining methods, conglomerate mine of the Calumet and Hecla Consolidated Copper Co.

Geophysical abstracts :no. 27

Mining laws of Palestine

The Bureau of Mines coal-sampling truck

Mining, treatment, methods, and costs at the East Texas Gravel Co.'s deposits near Bois D'Arc, Tex.

Fatal accidents in Alabama coal mines during 1930

Pyrites :general information

Safety education at iron mines of the Lake Superior region

Method and cost of quarrying, crushing and grinding limestone at the Catskill Plant of North American Cement Corporation, Catskill, N.Y.

Mining laws of Ethiopia (Abyssinia)

Mining practice and costs of the Vipond Mine, Timmins, Ontario

Mining and crushing methods and costs at the Tiffin Limestone quarry of the Thurber Earthen Products Co., Fort Worth, Tex.

Methods and costs of concentrating tungsten ores at Atolia, San Bernardino County, Calif.

Mining laws of Austria

Geophysical abstracts.

Geophysical abstracts.

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

Rock-dusting a Pennsylvania coal mine

Consumption of explosives in November, 1930 /W.W. Adams and L.S. Gerry.

Flotation of low-grade phosphate ores.

Smelting in the lead blast furnace :handling rich charges.

Gases in manholes :a survey of a utility in Boston, Mass.

Flotation reagents, 1929

Consumption of explosives in February, 1931

Consumption of explosives in March, 1931

Comparison of storage-battery and cable-reel gathering locomotives in a West Virginia coal mine

Official changes in the active list of permissible explosives and blasting devices for June, 1931

Sand-and-gravel safety contest of 1930

Official changes in the active list of permissible explosives and blasting devices for October, 1931

Twenty live reasons for first-aid training in California

Coal-Mine Fatalities in April, 1931

Coal-Mine Fatalities in December, 1930

Coal-Mine Fatalities in February, 1931

Coal-Mine Fatalities in June, 1931

Coal-Mine Fatalities in May, 1931

Coal-Mine Fatalities in March, 1931

Coal-Mine Fatalities in November, 1930

Leaching Oxidized Copper Ores: Effect of Strength of Acid in Leaching Solvent


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