Search U.S. government technical reports digitized or harvested by TRAIL.
Coal-dust explosions in mines caused by direct electrical ignition
The effectiveness of different-size rock dusts in preventing coal-dust explosions in mines
Some experiments on the initiation of coal-dust explosions by gas explosions
Laboratory Testing of the Inflammability of Coal and other Dusts Conducted by the Bureau of Mines
Tests of Rock-Dust Barriers in the Experimental Mine
The Experimental mine of the United States Bureau of Mines
Explosion Tests of Pittsburgh Coal Dust in the Experimental Mine, 1925 to 1932, Inclusive
Notes on testing and explosibility of coal dusts and a proposal to have an international test method
Tests of the compressibility and bearing strength of potash salt
Studies of roof movement in coal mines.
Tests of a barrier using rock dust in paper bags
Compression tests of roof-salt slabs supported by potash salt pillars
Studies of roof movement in coal mines.
Experiments on strength of small pillars of coal in the Pittsburgh bed