The quick determination of incombustible matter in coal and rock-dust mixtures in mines

Author:	Fieldner, Arno Carl,
Additional Authors:	Osgood, F. D., Selvig, Walter A.,
Year:	1918
Document Type:	USBM
Issuing Agency:	U.S.Bureau of Mines,
SUDOC:	I 28.7:144
Series:	Technical paper / United States. Bureau of Mines ;
Report Number:	144
Subjects:	Coal mines and mining--Safety measures
	Mine explosions
Link:	https://hdl.handle.net/2027/mdp.39015077565391