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  1. By: Morris, Charles
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 37
    Date: 1885
    Page Range: 124--135
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  2. By: Morris, Charles
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 37
    Date: 1885
    Page Range: 97--101
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  3. By: Morris, Charles
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 40
    Date: 1888
    Page Range: 419--420
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,