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Field notes and maps, circa 1934-1940 and undated, Devonian in Iowa, Michigan, Illinois, Missouri, Wisconsin, Minnesota, and Ontario

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By: Cooper, G. Arthur (Gustav Arthur),

Publication info: 1934-1940

Holding Institution: Smithsonian Institution Archives

Subjects: Canada Field notes Geology Holts Summit Illinois Iowa Maps Michigan Minnesota Missouri Ontario Paleontology Quasqueton Rogers City United States Wisconsin

BHL Collections: Smithsonian Field Books collection