Geological Survey of Ohio

Edward Orton

Grove Karl Gilbert

John Strong Newberry

Ebenezer Baldwin Andrews

John Hancock Klippart

Theodore George Wormley

Henry Newton

William Bleecker Potter

Matthew Canfield Read

Report of progress in 1870

Lake Bonneville

Clarence Edward Dutton

Geographical and Geological Survey of Th

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Report on the Geology of the Henry Mountains

Geographical and Geological Survey of the Rocky Mountain Region (U.S.)

A Study of the Origin of Its Features

The Moon's Face

"Considered a landmark in California gold mining history. Public indignation against spoilage of rich agricultural land and clogging of watercourses by debris generated by hydraulic mining in the Sierra foothills led to the winning of a major battle against the miners ... [The author] examines the need to find a solution to the debris from the mining operations"--Bookdealer's description

Hydraulic-mining Débris in the Sierra Nevada

A New Method of Measuring Heights by Means of the Barometer

Grove Karl Gilbert

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