Books by Horace R. Collins:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Collins, Horace R., 1930-: Coal (Ohio Division of Geological Survey, 1975), also by Ohio. Division of Geological Survey (page images at HathiTrust)- Collins, Horace R., 1930-: Coal production in Ohio, 1800-1974 (Dept. of Natural Resources, Division of Geological Survey, 1976), also by Ohio. Division of Geological Survey (page images at HathiTrust)
- Collins, Horace R., 1930-: Coal resources of a portion of the Pawpaw Creek watershed, Monroe, Noble, and Washington Counties (State of Ohio, Dept. of Natural Resources, Division of Geological Survey, 1976), also by Richard A. Struble and Richard M. DeLong (page images at HathiTrust)
Find more by Horace R. Collins at your library, or elsewhere.