Bureau of Mines apparatus for demonstrating electrical ignition of mine gas

Author:	Gleim, E. J.
Year:	1937
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:6944
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	6944
Subjects:	Mine safety
	Mine gases
Link:	https://hdl.handle.net/2027/mdp.39015077569500