Search U.S. government technical reports digitized or harvested by TRAIL.
A study of the oxidation of coal
Some properties of the water in coal
Factors in the spontaneous combustion of coal
The sulphur problem in burning coal
Burning of coal in down-draft ceramic kilns and burning characteristics of some Ohio coals
Developments in coal research and technology in 1937 and 1938
Hydrogenation and liquefaction of coal.
Hydrogenation and liquefaction of coal.
Hydrogenation and liquefaction of coal.
Hydrogenation and liquefaction of coal.
Bureau of Mines research on the hydrogenation and liquefaction of coal and lignite