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1Published 1909“...Washington, D.C. : Geological Survey (U.S.) (Washington, D.C.)...”
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2by Geological Survey (U.S.)“...Washington, D.C. : Geological Survey (U.S.)...”
Published 1906
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4by Geological Survey (U.S.)“...Washington, D.C. : Geological Survey (U.S.)...”
Published 1907
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7by Geological Survey (U.S.)“...Washington, D.C. : Geological Survey (U.S.)...”
Published 1907
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8by Geological Survey (U.S.)“...Washington, D.C. : Geological Survey (U.S.)...”
Published 1907
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10by Geological Survey (U.S.)“...Washington, D.C. : Geological Survey (U.S.)...”
Published 1911
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12by Geological Survey (U.S.);“...Washington, D.C. : U.S. Geological Survey;...”
Published 1962
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14by Geological Survey (U.S.)“...Washington, D.C. : Geological Survey (U.S.)...”
Published 2000
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15by Sawyer, Ernest Walker“...Washington, D.C. : Geological Survey (U.S.);...”
Published 1930
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16by Geological Survey (U.S.)“...Washington, D.C. : U.S. Geological Survey...”
Published 1919
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