Coal. Classification chart of typical coals of United States, showing B. t. u. per pound on moist, mineral-matter-free basis, plotted against fixed carbon on dry, mineral-matter-free basis; by A. C. Fieldner, W. A. Selvig, and W. H. Frederic.
Publication Title:
Coal. Classification chart of typical coals of United States, showing B. t. u. per pound on moist, mineral-matter-free basis, plotted against fixed carbon on dry, mineral-matter-free basis; by A. C. Fieldner, W. A. Selvig, and W. H. Frederic.
Display Title:
Coal. Classification chart of typical coals of United States, showing B. t. u. per pound on moist, mineral-matter-free basis, plotted against fixed carbon on dry, mineral-matter-free basis; by A. C. Fieldner, W. A. Selvig, and W. H. Frederic.
Corporate Agency Authors:
Mines Bureau and Interior Department
Sort Author:
Mines Bureau
Authors:
Fieldner, A. C., Selvig, W. A., and Frederic, W. H.
Date:
[Revised edition.] June 1939
Publish Date ISO Format:
1939-06-01T00:00:00Z
Publication Start:
19390601
Publication End:
19390630
Corporate/Agency Author:
Mines Bureau
Publication month:
7
Publication year:
1939
SuDoc number:
I 28.23:3296/2
Description:
[1]+22+[1] p. 4 pl. 4°
Notes:
(Report of investigations, R. I. 3296R.) [Processed.]
Notes:
(Report of investigations, R. I. 3296R.) [Processed.] † Distribution Made by Issuing Office.