Search U.S. government technical reports digitized or harvested by TRAIL.
International Conference of Mine-Safety Research at Buxton, England, July 31, 1931
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
Diesel mine locomotives :development and use in European coal mines
Liquid carbon dioxide used to extinguish a gob fire in a German coal mine