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By: Gardiner, Edward G. (Edward Gardiner),Edition:Publication info: Leipzig, 1884Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Bill (Anatomy) Birds Embryology Epidermis Keratinization physiologyBHL Collections:
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By: Mercer, E. H. (Edgar Howard),Edition:Publication info: Oxford, Pergamon Press, 1961Volume:Series:Holding Institution: MBLWHOI LibrarySubjects: KeratinizationBHL Collections: