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Front Matter

Articles

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Administrative Reports p. 9-32
Samuel Calvin, A. G. Leonard, and William Harmon Norton

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Geology of Johnson County p. 33-116
Samuel Calvin

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Geology of Cerro Gordo County p. 117-196
Samuel Calvin

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Geology of Marshall County p. 197-262
Samuel Walker Beyer

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Geology of Polk County p. 263-412
H. F. Bain

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Geology of Guthrie County p. 413-488
H. F. Bain

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Geology of Madison County p. 489-540
J. L. Tilton and H. F. Bain

Back Matter