Books by Hugh Maupin Wolfin:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Wolfin, Hugh Maupin, 1886-: Metal-mine fires (U.S. Dept. of the Interior, Bureau of Mines, 1923), also by D. Harrington and Byron O. Pickard (page images at HathiTrust)
Find more by Hugh Maupin Wolfin at your library, or elsewhere.