Oliver Perry Hay

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

Oliver Perry Hay

$27.95

Descriptions of Species of Pleistocene Vertebrata, Types or Specimens of Most of Which Are Preserved in the United States National Museum

Oliver Perry Hay

$18.95 - $29.95

Contributions To The Knowledge Of The Mammals Of The Pleistocene Of North America

Oliver Perry Hay

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The Pleistocene of the Middle Region of North America and Its Vertebrated Animals (Classic Reprint)

Oliver Perry Hay

$25.95

On the Manner of Locomotion of the Dinosaurs, Especially Diplodocus, With Remarks on the Origin of the Birds

Oliver Perry Hay

$26.95

The Batrachians and Reptiles of Indiana

Oliver Perry Hay

$22.69 - $32.95

On Certain Portions of the Skeleton of Protostega Gigas: Fieldiana Zoology v.1, no. 2

Oliver Perry Hay

$16.34

On the Structure and Development of the Vertebral Column of Amia: Fieldiana Zoology v.1, no. 1

Oliver Perry Hay

$18.15

Notes On Some Fossil Horses, With Descriptions Of Four New Species

Oliver Perry Hay

$13.69

Camels Of The Fossil Genus Camelops

Oliver Perry Hay

$13.05 - $32.95

Description Of The Skull Of An Extinct Horse, Found In Central Alaska With

Oliver Perry Hay

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Collected Papers, Volume 2...

Oliver Perry Hay

$23.46

The Extinct Bisons Of North America: With Description Of One New Species Bison Regius

Oliver Perry Hay

$21.78

Chondrocranium, Amphibia - Miscellaneous Papers

Oliver Perry Hay

$30.95

Bibliography and catalogue of the fossil vertebrata of North America

Oliver Perry Hay

$36.95 - $46.95

Description Of A New Species Of Extinct Horse, Equus Lambei, From The Pleistocene Of Yukon Territory

Oliver Perry Hay

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On The Structure And Development Of The Vertebral Column Of Amia, Volume 1

Oliver Perry Hay

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Anthropological scraps. No. 1-5; Sept. 10, 1919-Dec. 5, 1921

Oliver Perry Hay

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Collected Papers, Volume 5...

Oliver Perry Hay

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The Batrachians and Reptiles of Indiana

Oliver Perry Hay

$26.56 - $32.95

The fossil turtles of North America

Oliver Perry Hay

$46.95

Descriptions Of Two Extinct Mammals Of The Order Xenarthra From The Pleistocene Of Texas

Oliver Perry Hay

$13.69 - $22.95

On Some Collections of Fishes Made in the Kankakee and Illinois Rivers

Oliver Perry Hay

$16.34

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

Oliver Perry Hay

$46.65

The Recognition of Pleistocene Faunas

Oliver Perry Hay

$16.34 - $26.95

A Contribution to the Knowledge of the Extinct Sirenian Desmostylus Hesperus Marsh

Oliver Perry Hay

$16.34 - $21.55