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Authors whose works are in public domain in at least one jurisdiction

List of works by Charles Willard Hayes

Contributions to economic geology, 1910, Part I, Metals and nonmetals except fuels--Introduction ⬇️

scholarly article by C. Willard Hayes published in January 1911

Geologic map of Murphy quadrangle, Tennessee-North Carolina

article by Philip Burke King & Charles Willard Hayes published 1950 in Open-File Report

Geology of a Portion of the Coosa Valley in Georgia and Alabama

scholarly article by C. Willard Hayes published in January 1893

Physiography and geology of region adjacent to the Nicaragua Canal route

scholarly article by C. Willard Hayes published in January 1899

Solution of Silica Under Atmospheric Conditions

scholarly article

The Gila River alum deposit

scholarly article

The Overthrust Faults of the Southern Appalachians

scholarly article

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