Classification chart of typical coals of the United States :showing B.t.u. per pound on the moist, mineral-matter-free basis, plotted against fixed carbon on the dry, mineral-matter-free basis

Author: Fieldner, Arno Carl,
Additional Authors: Selvig, W. A., Frederic, W. H.
Year: 1939
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 3296R
Subject: Coal--United States
Link: https://hdl.handle.net/2027/mdp.39015078496406

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