Geology

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

Climate and Time in Their Geological Relations

Urban Heat Islands

Life in China

Essay on the Theory of the Earth

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

Preliminary Report on Gowganda Mining Division District of Nipissing Ontario

Deep Cave Missions