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  1. By: Derby, Orville A
    Type: Article
    In: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge
    Volume: 18
    Issue: 103
    Date: 1879
    Page Range: 155--178
    Publication Info: Philadelphia, American Philosophical Society,
  2. By: Agassiz, Alexander, - Garman, Samuel, - Derby, Orville A
    Type: Article
    In: Bulletin of the Museum of Comparative Zoology at Harvard College
    Volume: 3
    Issue: 12
    Date: 1875
    Page Range: 279--286
    Publication Info: Cambridge, Mass The Museum 1863-
  3. By: Derby, Orville A
    Type: Article
    In: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge
    Volume: 18
    Issue: 103
    Date: 1879
    Page Range: 251--258
    Publication Info: Philadelphia, American Philosophical Society,