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The Iowan Drift; A Review of the Evidences of the Iowan Stage of Glaciation; a Co-Operative Study for the U. S. Geological Survey and the Iowa
The Iowan Drift A Review of the Evidences of the Iowan Stage of Glaciation a CoOperative Study for the U S Geological Survey and the Iowa Author:Alden Title: The Iowan Drift; a Review of the Evidences of the Iowan Stage of Glaciation; a Co-Operative Study for the U. S. Geological Survey and the Iowa Geological Survey, by William C. Alden and Morris M. Leighton Publisher: Des Moines Publication date: 1917 Subjects: Geology -- Iowa Drift Notes: This is an OCR reprint. There may be numerou... more »s typos or missing text. There are no illustrations or indexes. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. You can also preview the book there.« less