Books by Hugh Maupin Wolflin:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Wolflin, Hugh Maupin, 1886-: Rescue and recovery operations in mines after fires and explosions (Govt. print. off., 1916), also by United States Bureau of Mines, Hugh M. Wolflin, and James W. Paul (page images at HathiTrust)- Wolflin, Hugh Maupin, 1886-: Use of airplanes in mining and petroleum operations (abstract) (U.S. Bureau of Mines, 1934), also by Charles Will Wright and United States Bureau of Mines (page images at HathiTrust)
Find more by Hugh Maupin Wolflin at your library, or elsewhere.