- Notes On Some Fossil Horses, With Descriptions Of Four New Species
- The Pleistocene of the Middle Region of North America and Its Vertebrated Animals (Classic Reprint)
- 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
- Camels Of The Fossil Genus Camelops
- The fossil turtles of North America


























