Search U.S. government technical reports digitized or harvested by TRAIL.
Stench warnings in metal mines
Permeation of oxygen breathing apparatus by gases and vapors
The sugar-tube method of determining rock dust in air
Permissible explosives, mining equipment and apparatus approved prior to January 1, 1923
Gasoline saved on government trucks by adjusting carburetors by exhaust gas analysis
Coal analyses from twenty-five laboratories compared
The universal and the fireman's gas masks
The carbon monoxide self-rescuer
Exhaust gases from engines using ethyl gasoline
The Bureau of Mines Orsat apparatus for gas analysis
Work of the experiment stations of the Bureau of Mines
Recent developments in the production of motor fuels from coal