Carbonizing properties and petrographic composition of washed and unwashed Lower and Upper Kittanning-bed coals from mines 72 and 73, Johnstown, Cambria County, Pa.

Additional Authors:	Reynolds, D. A., Holmes, C. R., Selvig, W. A., Fieldner, Arno Carl,, Davis, J. D., Thiessen, R.
Year:	1939
Document Type:	USBM
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.7:595
Series:	Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number:	595
Subjects:	Coal--Pennsylvania--Cambria County
	Coal--Testing
	Carbonization
Link:	https://hdl.handle.net/2027/mdp.39015078485045