Fossils

Introduction to the Study of Palæontological Botany

Researches on the Visual Organs of the Trilobites

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

Water Reptiles of the Past and Present

Rocks and Their Origins

Fossil Forests of the Yellowstone National Park

Cave Hunting

The Rise and Progress of Palaeontology

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

Submerged forests

Heroes of science : Botanists, zoologists, and geologists

The Geologic Setting of the John Day Country: Grant County, Oregon

Voyager 1 Encounters Saturn

The Survival Handbook

The Lost Lemuria

Pleistocene Bats from San Josecito Cave, Nuevo Leon, Mexico

North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus

The Pleistocene of North America and its vertebrated animals

The Flow of Time in the Connecticut Valley: Geological Imprints

Cambrian Ocean World