Earth Sciences

Marine Lava Fields

Sunken Cave Secrets

Odd Mountain Tales

The Preparation of Illustrations for Reports of the United States Geological Survey

The Chain of Life in Geological Time

Illogical Geology, the Weakest Point in the Evolution Theory

Thunder and Lightning

Outlines of the Earth's History: A Popular Study in Physiography

Mystic Peak Legends

Tidal Arch Realms

Raging Storm Hunts

Desert Encounters

Guide to the Geologic Map of Illinois

Fierce Volcano Runs

Undersea Crystal Tunnels

Lesser Known Paths

Earth's Changing Climate

Tiny Planet Patterns

Soil Erosion Crisis

Ocean Depth Realms