Preliminary paper on the driftless area of the Upper Mississippi Valley
By: by T.C. Chamberlin and R.D. Salisbury
Contributors: Salisbury, Rollin D., 1858-1922
Series: Nineteenth Century Collections Online: Science, Technology, and Medicine, Part I; Nineteenth Century Collections Online: Science, Technology, and Medicine, Part I
Publisher: G.P.O.
Published: 1886
Place of publication: Washington
Language: eng
Format: [electronic resource] /
Number of pages: 322
Subjects: Geology; Glacial epoch
Other titles: 6th annual report of the director of the U.S. Geological Survey, 1884-85.
Notes: Cover title.

Extracts from the 6th annual report of the Director of the U.S. Geological Survey, 1884-85.

Reproduction of the original from the Library of Congress.

Includes bibliographical references.