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  1. By: Lewis, Henry Carvill
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 32
    Date: 1880
    Page Range: 282--291
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  2. By: Lewis, Henry Carvill
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 32
    Date: 1880
    Page Range: 281--281
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  3. By: Lewis, Henry Carvill
    Type: Article
    In: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge
    Volume: 20
    Issue: 111
    Date: 1882
    Page Range: 112--117
    Publication Info: Philadelphia, American Philosophical Society,
  4. By: Lewis, Henry Carvill
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 32
    Date: 1880
    Page Range: 278--279
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  5. By: Lewis, Henry Carvill
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 32
    Date: 1880
    Page Range: 244--251
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  6. By: Lewis, Henry Carvill
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 32
    Date: 1880
    Page Range: 296--309
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,