| Author: | Coward, H. F. |
|---|---|
| Additional Authors: | Jones, G. W. |
| Year: | 1926 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | I 28.23:2757 |
| Series: | Report of investigations / United States. Bureau of Mines ; |
| Report Number: | 2757 |
| Subjects: | Helium |
| Mine explosions | |
| Methane | |
| Link: | https://hdl.handle.net/2027/mdp.39015086546374 |