Pt I County And Regional Geology Geology Of The Middle Region Of Western Iowa And Other Counties By O H St John Northwestern Iowa Middle Region Of Northern Iowa Geology Of The Coal Counties By C A White Pt Ii Mineralogy Lithology And Chemistry Peat And Petroleum Gypsum And Other Sulphates Of The Alkaline Earths Building Materials Metals And Miscellaneous Substances By C A White Chemistry By R Emery Appendices A Railroad Elevations By Civil Engineers B Catalogue Of Birds By J A Allen C Land Surveys By C W Irish

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