Search U.S. government technical reports digitized or harvested by TRAIL.
Explosibility of coal dust from four mines in Utah
Propagation of flame in mixtures of natural gas and air
Rock-dust barriers for coal mines
Coal-dust explosibility factors indicated by experimental mine investigations 1911 to 1929
What do we know about the explosibility of coal dust in 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
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
Tests of salt as a substitute for rock dust in the prevention of coal-dust explosions in mines
Studies of roof movement in coal mines.
Characteristics of fuel pitches and their explosibility in pulverized form
Use of wetting agents for allaying coal dust in mines
Methods of sampling and analyzing coal-mine dusts for incombustible content
A study of timber decay in the Crucible Mine of the Crucible Fuel Co.
Studies of roof movement in coal mines.
Progress report :experiments on strength of small pillars of coal in the Pittsburgh bed