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1by Horton, A. H. (Albert Howard), 1875-1945, Bolster, R. H. (Roy Hale), 1877-, Chandler, Elwyn F. (Elwyn Francis), 1872-1944“...Department of the Interior, United States Geological Survey,...”
Published 1910
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2by Follansbee, Robert, 1879-1952, Horton, A. H. (Albert Howard), 1875-1945, Bolster, R. H. (Roy Hale), 1877-“...Department of the Interior, United States Geological Survey,...”
Published 1911
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3“...Department of the Interior, United States Geological Survey,...”
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4by Follansbee, Robert, 1879-1952, Horton, A. H. (Albert Howard), 1875-1945, Stevens, Guy C. (Guy Clarke), 1879-“...Department of the Interior, United States Geological Survey,...”
Published 1912
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5“...Department of the Interior, United States Geological Survey,...”
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