Paleontology

Thoughts on a Pebble, or, A First Lesson in Geology

Pleistocene Pocket Gophers From San Josecito Cave, Nuevo Leon, Mexico

Fossils: A Story of the Rocks and Their Record of Prehistoric Life Denver Museum of Natural History, Popular Series No. 3

Dinosaurs, with Special Reference to the American Museum Collections

African Dinosaurs Unearthed

Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems

The Desert Bones

Researches on the Visual Organs of the Trilobites

A Monograph of the Trilobites of North America: with Coloured Models of the Species

Relics of Primeval Life: Beginning of Life in the Dawn of Geological Time

The zoology of the voyage of H.M.S. Beagle: Fossil mammalia

Fossil Butterflies

Introduction to the Study of Palæontological Botany

Geology and Inhabitants of the Ancient World

Eurypterids of the Devonian Holland Quarry Shale of Ohio

Australasian Fossils: A Students' Manual of Palaeontology

The Coal Measures Amphibia of North America

North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus

North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus

The Pleistocene of North America and its vertebrated animals