Microscopic study of Elkhorn coal bed at Jenkins, Letcher county, Ky.

Author:	Thiessen, Reinhardt,
Additional Authors:	O'Donnell, Hugh J.,, Sprunk, G. C.
Year:	1931
Document Type:	USBM
Issuing Agency:	U.S.Bureau of Mines,
SUDOC:	C 22.5:506
Series:	Technical paper / United States. Bureau of Mines ;
Report Number:	506.
Subjects:	Coal--Kentucky--Letcher County
	Microscopy
Link:	https://hdl.handle.net/2027/mdp.39015077559790