dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Rex, G A
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 42
    Issue: 2
    Date: 1890
    Page Range: 192--196
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  2. By: Rex, G A
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 43
    Date: 1891
    Page Range: 389--398
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  3. By: Rex, G A
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 45
    Issue: 3
    Date: 1893
    Page Range: 364--372
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,