Books by R. C. Emmons:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Emmons, R. C. (Richard Conrad), 1898-1993: The microscopic characters of artificial inorganic solid substances or artificial minerals (J. Wiley ;, 1931), also by Alexander Newton Winchell (page images at HathiTrust)- Emmons, R. C. (Richard Conrad), 1898-1993: The universal stage : with five axes of rotation (The Geological Society of America, 1943), also by Geological Society of America (page images at HathiTrust)
Find more by R. C. Emmons at your library, or elsewhere.