Methane-indicating detectors prove dependable in sampling air in anthracite mines

Author:	Currie, R. D.
Year:	1936
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:6874
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	6874
Subjects:	Mine safety
	Anthracite coal
	Coal mines and mining--Safety measures
	Mine ventilation
Link:	https://hdl.handle.net/2027/mdp.39015077568767