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Rock-dust barriers for coal mines

Coal-dust explosions in mines caused by direct electrical ignition

The effectiveness of different-size rock dusts in preventing coal-dust explosions in mines

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

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

The Experimental mine of the United States Bureau of Mines

Tests of the compressibility and bearing strength of potash salt

Tests of a barrier using rock dust in paper bags

Compression tests of roof-salt slabs supported by potash salt pillars

Experiments on strength of small pillars of coal in the Pittsburgh bed

Tests of salt as a substitute for rock dust in the prevention of coal-dust explosions in mines

Characteristics of fuel pitches and their explosibility in pulverized form

Progress report :experiments on strength of small pillars of coal in the Pittsburgh bed

Tests in the Experimental coal mine to determine requirements for preventing propagation of coal-dust explosions in rooms

Tests on the ignition of natural gas-air mixtures by permissible explosives in the experimental coal mine

Tests on the control of coal-mine fires in the experimental coal mine

Recent rock-dusting experiments for arresting coal-mine explosions

Experiments on safety of incombustible plugs for stemming explosives

Experiments on multiple short-delay blasting of coal (in two parts) :part I


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