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harvard university ernst mayr library museum of comparative zoology shell mollusk gastropoda early works to 1800 recreatio mentis et oculi in observatione animalium testaceorum fossil bones annales du musée royal d'histoire naturelle de belgique t.13 (planches)

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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united states bird

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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harvard university ernst mayr library

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great britain fish

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north america paleontology

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north america paleontology

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north america paleontology

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north america paleontology

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united states bird

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