Electrical blasting in sinking Montreal no. 5 shaft :also some safety practices at the Montreal mine

Author:	Crawford, F. S.
Additional Authors:	Owings, C. W.
Year:	1929
Document Type:	MAIN
SUDOC:	C 22.11:6189
Series:	Information circular / Bureau of Mines ;
Report Number:	6189
Subjects:	Mine safety
	Mining engineering
Link:	https://hdl.handle.net/2027/mdp.39015095078823