- The Dinosaurs Of North America
- Odontornithes: A Monograph Of The Extinct Toothed Birds Of North America
- Introduction and Succession of Vertebrate Life in America. An Address Delivered Before the American Association for the Advancement of Science, at Nashville, Tenn., Aug. 30, 1877
- Birds With Teeth
- Description of an Ancient Sepulchral Mound Near Newark, Ohio