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Abbildungen von VogelSkeletten Tafel VII . Alezjer Ahh Vocfelshele tcjf jaM Li lTn voiL Ruuracr Jonas in lhv loii ucx cli JhmJ Tafel VII Illustration biodiversitylibrary org title Meyer Adolf Bernhard Biodiversity Heritage Library Abbildungen von VogelSkeletten Anatomy Birds Smithsonian Institution Libraries bhl page