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Abbildungen von VogelSkeletten Tafel . Ah' Abb Vogdskelecfh Tafel Lichldmolt von RiTuiiIer Joiias in IJrestlr Dasydhis Pecgueli Lesson Tafel Illustration biodiversitylibrary org title Meyer Adolf Bernhard Biodiversity Heritage Library Abbildungen von VogelSkeletten Anatomy Birds Smithsonian Institution Libraries bhl