Author: | Paul, J. W. |
---|---|
Year: | 1913 |
Document Type: | MAIN |
Issuing Agency: | U.S. G.P.O., |
SUDOC: | I 28.6:12 |
Series: | Miner's circular ; |
Report Number: | 12 |
Subjects: | Coal mine accidents |
Safety lamps | |
Link: | https://hdl.handle.net/2027/mdp.39015077561994 |