Electromagnetic absorption by rocks :with some experimental observations taken at the Mammouth Cave of Kentucky

Author:	Joyce, J. Wallace.
Year:	1931
Document Type:	USBM
Issuing Agency:	U.S.Bureau of Mines,
SUDOC:	C 22.5:497
Series:	Technical paper / United States. Bureau of Mines ;
Report Number:	497
Subjects:	Rocks
	Electric waves
Link:	https://hdl.handle.net/2027/mdp.39015077559469