Fires and fire prevention in Lake Superior mines

Author:	Gregory, F. C.
Year:	1928
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6073
Series:	Information circular / United States Department of Commerce, Bureau of Mines ;
Report Number:	6073
Subjects:	Mine explosions--Minnesota
	Mine fires--Prevention and control--Minnesota
Link:	https://hdl.handle.net/2027/mdp.39015077569799