The Online Books Page

Books by H. L. Riley:

Books in the extended shelves:

• Riley, H. L.: Report of Bureau of Mines research and technologic work on coal and related investigations, 1955 (U. S. Department of the Interior, 1957), also by E. P. Carman and M. R. Geer (page images at HathiTrust)
• Riley, H. L.: Washability studies of the Clark and Gholson coal beds at Boothton, Ala. (U.S. Dept. of the Interior, Bureau of Mines, 1947), also by B. W. Gandrud, University of Alabama, and United States Bureau of Mines (page images at HathiTrust)
• Riley, H. L.: Washability study of the Pratt bed at the Davidson mine, Graysville, Ala. (U.S. Dept. of the Interior, Bureau of Mines, 1955), also by B. W. Gandrud, Paul Sutton, University of Alabama, and United States Bureau of Mines (page images at HathiTrust)

Find more by H. L. Riley at your library, or elsewhere.