Author: | DeVaney, F. D. |
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Additional Authors: | Coghill, W. H. |
Year: | 1932 |
Document Type: | BMRA |
Issuing Agency: | United States Bureau of Mines, |
SUDOC: | C 22.12:3148 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 3148 |
Subjects: | Coal washing |
Ore-dressing | |
Coal mines and mining--Minnesota | |
Link: | https://hdl.handle.net/2027/mdp.39015077567702 |