Author: | Hall, Clarence |
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Additional Authors: | Howell, S. P., Snelling, W. O. |
Year: | 1912 |
Document Type: | N/A |
Issuing Agency: | United States. Bureau of Mines. |
Series: | United States Bureau of Mines Reports |
Report Number: | Bulletin 15 |
Link: | https://digital.library.unt.edu/ark:/67531/metadc12232/ |