Browse TRAIL Inventories

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

Effect of sized ore on blast-furnace operation

Natural-gasoline plants in the United States :January 1, 1930

Petroleum refineries in the United States, January 1, 1930

Coal-Mine Fatalities in the United States, 1928

Metal-Mine Accidents in the United States During the Calendar Year 1928

Quarry Accidents in the United States During the Calendar Year 1928

Deposits of titanium-bearing ores :by E.P. Youngman.

Cobalt

Bromine and iodine

Titanium

Men and mines

Barite and barium products.

Method and costs of treatment at the Calumet & Hecla reclamation plant

Privately owned mine rescue stations

Mining practices, methods, and costs at Mine No. 4 of the Marquette Range, Michigan

Commercial Possibilities of the Texas-New Mexico Potash Deposits

Reducing accidents from falls of roof in coal mines

Activity of the Holmes Safety Association in reducing accidents in Alabama

Railroad fuel-oil consumption in 1928

Teaching safety through the approval plate


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