| Author: | Gleim, E. J. |
|---|---|
| Additional Authors: | James, R. S. |
| Year: | 1935 |
| Document Type: | USBM |
| Issuing Agency: | U.S.Bureau of Mines, |
| SUDOC: | I 28.7:566 |
| Series: | Technical paper / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 566 |
| Subjects: | Mine safety |
| Coal mines and mining--Equipment and supplies | |
| Mine safety--Equipment and supplies | |
| Link: | https://hdl.handle.net/2027/mdp.39015077565425 |