Author: Barkley, J.F.
Additional Author: Cheasley, Thos. C.
Additional Author: Waddell, K.M.
Link to Full Report: Pages in PDF: 106
Document Type: USBM
Issuing Agency: U.S. Bureau of Mines
Performing Organization: U.S. Bureau of Mines
Report Number: USBM Bulletin 469
SUDOC: TN 23 U4
Series: U.S. Bureau of Mines Bulletins