| Author: | Rice, George Samuel, |
|---|---|
| Additional Authors: | Greenwald, H. P. |
| Year: | 1929 |
| Document Type: | USBM |
| Issuing Agency: | U.S. Bureau of Mines, |
| SUDOC: | C 22.5:464 |
| Series: | Technical paper / United States. Bureau of Mines ; |
| Report Number: | 464 |
| Subjects: | Coal mines and mining--Safety measures |
| Mine explosions | |
| Link: | https://hdl.handle.net/2027/mdp.39015077559352 |