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
The Experimental mine of the United States Bureau of Mines
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