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  1. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 9
    Date: 1857
    Page Range: 101--104
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  2. By: Lea, Isaac
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 3
    Series: 4
    Date: 1869
    Page Range: 466--467
    Publication Info: London Taylor and Francis, Ltd
  3. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 14
    Date: 1862
    Page Range: 262--272
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  4. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 15
    Date: 1863
    Page Range: 190--190
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  5. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 25
    Date: 1873
    Page Range: 422--423
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  6. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 18
    Date: 1866
    Page Range: 33--35
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  7. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 18
    Date: 1866
    Page Range: 133--133
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  8. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 17
    Date: 1865
    Page Range: 88--89
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  9. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 16
    Date: 1864
    Page Range: 3--5
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  10. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 15
    Date: 1863
    Page Range: 154--156
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  11. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 20
    Date: 1868
    Page Range: 160--161
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  12. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 18
    Date: 1866
    Page Range: 110--113
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  13. By: Lea, Isaac
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 20
    Date: 1868
    Page Range: 145--146
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,