Browse TRAIL Inventories

Method and cost of dredging sand and gravel, Portland Gravel Co., Portland, Oreg.

Mining laws of Poland

Mining laws of the Republic of Liberia

Mining laws of Denmark and Danish possessions

Mining laws of Haiti

Mining laws of the Unfederated Malay States

Mining laws of Greece

Natural-gasoline plants in the United States :January 1, 1932

Mining laws of Finland

The mineral industry

Physiological factors in mine ventilation in 1931

Survey of cracking plants, January 1, 1932

Mining and technology graduates and their problems

Management of labor in successful metal-mine operations

Abstracts of recent articles on mine support

Mining methods and costs at the Hart Spur pit of the Fort Worth Sand & Gravel Co., Inc., Fort Worth, Tex.

Mining statutes of the state of Pennsylvania(summarized)

Clay-mining methods and costs at the Corunna (Mich.) pit of the Aetna Portland Cement Co.

Methods and costs of dredging auriferous gravels at Lancha Plana, Amador County, Calif.

Description of the property and operations at the Lewiston Dredge, Lewiston, Calif.

Mining methods and costs at the vanadium mine of the United States Vanadium Corporation, Rifle, Colo.

Accident experience and cost in Tennessee coal mines

Prospecting and exploration for sand and gravel

International Conference of Mine-Safety Research at Buxton, England, July 31, 1931

Methods and costs of mining ferberite ore at Cold Springs Mine, Nederland, Boulder County, Colo.

Safety practices at Mine 1, Spring Canyon Coal Co., Utah

Explosions in Colorado coal mines, 1833 to 1932

Method and cost of quarrying, curshing, and grinding limestone at the Security Quarry of the North American Cement Corporation, Security, Md.

Sodium and potassium metals

Chromium :general information

Soapstone

Mining methods and costs at the New Cornelia Branch, Phelps Dodge Corporation, Ajo, Ariz.

Iron oxide pigments and mortar colors

Sand and gravel dredging methods and costs of J.K. Davison & Bro., Pittsburgh, Pa.

Quartz gem stones

Pumice and pumicite

List of motors available to prospective builders of permissible outfits

Milling methods and costs at the Superior concentrator of the Engels Copper Mining Co., Plumas County, Calif.

Milling methods at the Questa concentrator of the Molybdenum Corporation of America, Questa, New Mexico

Mining laws of Egypt

250 versus 500 volts or more for circuits in gassy coal mines

Consumption of primary tin in the United States during 1930

A tabular review of state laws relating to taxation and inspection of gasoline and other petroleum products

Research activities in the mineral industries of the United States

Radium in medical use in the United States

Geophysical abstracts.

Pressure losses due to bends and area changes in mine airways

Abrasive and industrial diamonds

Geophysical abstracts.

Geophysical abstracts.


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