8 books
The Geologic Story of Isle Royale National Park (Large Text Classic Reprint)
The Geologic Story of Isle Royale National Park (Classic Reprint)
The Geologic Story of Yosemite Valley
Amount and Timing of Late Cenozoic Uplift and Tilt of the Central Sierra Nevada, California
Geological Ramblings in Yosemite
Devils Postpile Story
The Geologic Story of Yosemite National Park
The Geologic Story of Isle Royale National Park