Search U.S. government technical reports digitized or harvested by TRAIL.
Gases produced in the use of carbon tetrachloride and foamite fire extinguishers in mines.
Methane in California gold mines
Precautions to be observed in entering abandoned exploratory shafts and pits
Hot high-nitrogen gas in a metal mine
Rock strata gases in mines of the East Tintic mining district, Utah
Rock strata gases in mines of a Nevada mining district
Fighting a mine fire with its own gases
Momentary heating of inflammable coal dusts
A critical study of the Burrell indicator for combustible gases in air