| Author: | Denny, E. H. | 
|---|---|
| Additional Authors: | Kintz, G. M. | 
| Year: | 1930 | 
| Document Type: | MAIN | 
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, | 
| SUDOC: | C 22.11:6349 | 
| Series: | Information circular / United States Department of the Interior, Bureau of Mines ; | 
| Report Number: | 6349 | 
| Subjects: | Mine safety | 
| Mine accidents | |
| Industrial safety--Research--United States | |
| Safety education, Industrial--United States | |
| Link: | https://hdl.handle.net/2027/mdp.39015095084565 |