Author: | Ilsley, L. C. |
---|---|
Additional Authors: | Hooker, A. B. |
Year: | 1921 |
Document Type: | USBM |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.7:228 |
Series: | Technical paper / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 228 |
Subjects: | Mine explosions--Prevention |
Safety lamps--Materials--Testing | |
Link: | https://hdl.handle.net/2027/mdp.39015077560624 |