Author: | Ash, S. H. |
---|---|
Additional Authors: | Smith, Emory. |
Year: | 1936 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:6909 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 6909 |
Subjects: | Mines and mineral resources--California |
Mine safety | |
Link: | https://hdl.handle.net/2027/mdp.39015077569674 |