Rocks & Minerals

Texas Rocks and Minerals: An Amateur's Guide

Gemstones

Lifeful Stories of Lifeless Rocks

Mount Rainier, a Record of Exploration

The Geologic Story of Glacier National Park

The Geology of Button Bay State Park

The Geologic Story of Colorado National Monument

Fragments of Earth Lore: Sketches & Addresses Geological and Geographical

Underground Treasures: How and Where to Find Them

Pleistocene Bats from San Josecito Cave, Nuevo Leon, Mexico

Pleistocene Bats from San Josecito Cave, Nuevo Leon, Mexico

Canyons of the Colorado

Florida Caverns State Park

Geology: The Science of the Earth's Crust

Across Mongolian Plains

Ancient Landscapes of the Grand Canyon Region

Gems in the Smithsonian Institution

Fossil Forests of the Yellowstone National Park

Cave Regions of the Ozarks and Black Hills

Field Book of Common Rocks and Minerals