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  1. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia :Claxton, Remsen, and Haffelfinger,1878.
    Holding Institution: University of California Libraries (archive.org)
  2. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia,Claxton, Remsen, and Haffelfinger,1878.
    Holding Institution: Smithsonian Libraries
  3. By: Gentry, Thomas G. (Thomas George),
    Publication info: New York,Doubleday, Page & co.,1900
    Holding Institution: University of California Libraries (archive.org)
  4. By: Gentry, Thomas G. (Thomas George),
    Publication info: New York,Doubleday, Page & Co.,1900.
    Holding Institution: Cornell University Library
  5. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia,Burk & McFetridge Co.,c1897.
    Holding Institution: University of California Libraries (archive.org)
  6. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia,Published by the author,1876-77.
    Holding Institution: Cornell University Library
  7. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia :Pub. by the author,1876-77.
    Holding Institution: University of California Libraries (archive.org)
  8. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia,Pub. by the author,1876-77.
    Holding Institution: MBLWHOI Library
  9. By: Gentry, Thomas G. (Thomas George),
    Publication info: Philadelphia,J.A. Wagenseller,1882.
    Holding Institution: Smithsonian Libraries
  1. By: Gentry, Thomas G. (Thomas George),
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia.
    Volume: 27
    Date: 1875
    Page Range: 24--54
    Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
  2. By: Gentry, Thomas G. (Thomas George),
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia.
    Volume: 25
    Date: 1873
    Page Range: 281--283
    Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia
  3. By: Gentry, Thomas G. (Thomas George),
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia.
    Volume: 25
    Date: 1873
    Page Range: 274--275
    Publication info: Philadelphia,Academy of Natural Sciences of Philadelphia