Rocks & Minerals

The Forms of Water in Clouds and Rivers, Ice and Glaciers

Essay on the Theory of the Earth

Inside Illinois: Mineral Resources

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

A Boy's-Eye View of the Arctic

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

Glossary of Geological and Other Scientific Terms Used in the Principles of Geology

Deserts: Geology and Resources

Cave Hunting

The Geologic Story of Glacier National Park

The Lost Lemuria

Pleistocene Bats from San Josecito Cave, Nuevo Leon, Mexico

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

Voyager 1 Encounters Saturn

The Survival Handbook

The Rise and Progress of Palaeontology

Fossil Forests of the Yellowstone National Park

Preliminary Report on Gowganda Mining Division District of Nipissing Ontario

The Geology of Button Bay State Park

The Geology of D.A.R. State Park, Mt. Philo State Forest Park, Sand Bar State Park