Online Books by
Max Walker De Laubenfels
(De Laubenfels, Max Walker, 1894-)
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
De Laubenfels, Max Walker, 1894-: A discussion of the sponge fauna of the Dry Tortugas in particular and the West Indies in general, with material for a revision of the families and orders of the Porifera (Carnegie institution of Washington., 1936) (page images at HathiTrust)- De Laubenfels, Max Walker, 1894-: Life science, a survey of the various fields of biology (The author, 1943) (page images at HathiTrust)
- De Laubenfels, Max Walker, 1894-: Life science, a survey of the various fields of biology (The author, 1946) (page images at HathiTrust)
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