The Geology and Petrography of Crater Lake National Park (Department of the Interior United State Geological Survey, Professional Paper No. 3, Series B. Descriptive Geology, 22; D. Petrography and Mineralogy, 21)
The Geology and Petrography of Crater Lake National Park (Department of the Interior United State Geological Survey, Professional Paper No. 3, Series B. Descriptive Geology, 22; D. Petrography and Mineralogy, 21)

The Geology and Petrography of Crater Lake National Park (Department of the Interior United State Geological Survey, Professional Paper No. 3, Series B. Descriptive Geology, 22; D. Petrography and Mineralogy, 21)

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167 pp. CONTENTS: Introduction by Joseph Silas Diller; The Geology of Crater Lake National Park, by Joseph Silas Diller; The Petrography of Crater Lake National Park, by Horace Bushnell Patton; Index.