Author: | Hall, Clarence. |
---|---|
Year: | 1911 |
Document Type: | MAIN |
Issuing Agency: | Govt. Print. Off., |
Series: | Miners' circular ; |
Report Number: | 2 |
Subjects: | Coal mines and mining--Explosives |
Explosives | |
Link: | https://hdl.handle.net/2027/mdp.39015077561234 |