Sort By:
  1. The batrachians and reptiles of the State of Indiana / by Oliver Perry Hay.
    By: Hay, Oliver Perry,
    Publication info: Indianapolis :Wm. B. Burford,1892.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
    View Book
  2. The batrachians and reptiles of the State of Indiana / by Oliver Perry Hay.
    By: Hay, Oliver Perry,
    Publication info: Indianapolis :Wm. B. Burford,1892.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
    View Book
  3. Bibliography and catalogue of the fossil vertebrata of North America, by Oliver Perry Hay.
    By: Hay, Oliver Perry,
    Publication info: Washington :Govt. Print. Off.,1902.
    Contributed by: University of California Libraries (archive.org)
    View Book
  4. The fossil turtles of North America, by Oliver Perry Hay.
    By: Hay, Oliver Perry,
    Publication info: Washington, D.C. :Pub. by the Carnegie Institution of Washington,1908.
    Contributed by: University of California Libraries (archive.org)
    View Book
  5. The fossil turtles of North America, by Oliver Perry Hay.
    By: Hay, Oliver Perry,
    Publication info: Washington, D.C.,Pub. by the Carnegie Institution of Washington,1908.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
    View Book
  6. On certain portions of the skeleton of Protostega gigas [by] O. P. Hay.
    By: Hay, Oliver Perry,
    Publication info: Chicago,1895
    Contributed by: University of Illinois Urbana Champaign
    View Book
  7. On some collections of fishes made in the Kankakee and Illinois Rivers [by] O. P. Hay.
    By: Hay, Oliver Perry,
    Publication info: Chicago,1896
    Contributed by: University of Illinois Urbana Champaign
    View Book
  8. On the manner of locomotion of the dinosaurs, especially Diplodocus, with remarks on the origin of the birds, by Oliver P. Hay ...
    By: Hay, Oliver Perry,
    Publication info: Baltimore, Md. :Williams & Wilkins company,1910.
    Contributed by: University of California Libraries (archive.org)
    View Book
  9. On the skeleton of Toxochelys latiremis [by] O. P. Hay.
    By: Hay, Oliver Perry,
    Publication info: Chicago,1896
    Contributed by: University of Illinois Urbana Champaign
    View Book
  10. On the structure and development of the vertebral column of Amia [by] O. P. Hay.
    By: Hay, Oliver Perry,
    Publication info: Chicago,1895
    Contributed by: University of Illinois Urbana Champaign
    View Book
  11. The Pleistocene of North America and its vertebrated animals form the states east of the Mississippi River and form the Canadian provinces east of longitude 95 .
    By: Hay, Oliver Perry,
    Publication info: WashingtonCarnegie Institution of Washington1923
    Contributed by: Gerstein - University of Toronto (archive.org)
    View Book
  12. The recognition of Pleistocene faunas, by Oliver P. Hay.
    By: Hay, Oliver Perry,
    Publication info: Washington :Smithsonian Institution,1912.
    Contributed by: University of California Libraries (archive.org)
    View Book