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  1. By: Leidy, Joseph,
    Publication info: 1871-1888
    Holding Institution: Academy of Natural Sciences of Drexel University, Library and Archives
  2. By: Leidy, Joseph,
    Publication info: 1874-1890
    Holding Institution: Academy of Natural Sciences of Drexel University, Library and Archives
  3. By: Leidy, Joseph,
    Publication info: 1877-1887
    Holding Institution: Academy of Natural Sciences of Drexel University, Library and Archives
  4. By: Leidy, Joseph,
    Publication info: 1880-1883
    Holding Institution: Academy of Natural Sciences of Drexel University, Library and Archives
  5. By: Leidy, Joseph,
    Publication info: 1884-1886
    Holding Institution: Academy of Natural Sciences of Drexel University, Library and Archives