Permissible explosives tested prior to January 1, 1911 and precautions to be taken in their use
| Author: | Hall, Clarence. |
|---|---|
| Year: | 1911 |
| Document Type: | MAIN |
| Issuing Agency: | Govt. Print. Off., |
| Series: | Miners' circular ; |
| Report Number: | 2 |
| Subjects: | Explosives |
| Coal mines and mining--Explosives | |
| Link: | https://hdl.handle.net/2027/mdp.39015077561234 |