Additional Authors: | Fay, Albert H. |
---|---|
Year: | 1919 |
Document Type: | USBM |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.7:231 |
Series: | Technical paper / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 231 |
Subjects: | Coal mines and mining--Safety measures |
Mine accidents | |
Explosives | |
Link: | https://hdl.handle.net/2027/mdp.39015086470849 |