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By: McDougall, W. B. (Walter Byron),Edition: 3d ed., thoroughly rev.Publication info: Philadelphia, Lea & Febiger, [1941]Volume:Series:Holding Institution: MBLWHOI LibrarySubjects:BHL Collections:
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By: McDougall, W. B. (Walter Byron), - Baggley, Herma A. - United States. National Park Service.Edition:Publication info: Washington, U.S. Govt. Print. Off, 1936Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects:BHL Collections: Earth Optimism | Women in Natural History