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1“...Department of the Interior, United States Geological Survey,...”
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2by Grover, Nathan Clifford, 1868-1956, Covert, C. C. (Clermont Calvert), 1872-, Stevens, Guy C. (Guy Clarke), 1879-“...Department of the Interior, United States Geological Survey,...”
Published 1915
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3by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1915
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4by Grover, Nathan Clifford, 1868-1956, Lamb, W. A. (William Alfred), 1881-, Follansbee, Robert, 1879-1952“...Department of the Interior, United States Geological Survey,...”
Published 1915
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5by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1916
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6by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1917
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7by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1916
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8by Grover, Nathan Clifford, 1868-1956, Horton, A. H. (Albert Howard), 1875-1945, Hoyt, W. G. (William Glenn), 1886-1971“...Department of the Interior, United States Geological Survey,...”
Published 1915
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9“...Department of the Interior, United States Geological Survey,...”
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10by Grover, Nathan Clifford, 1868-1956, Hall, Warren E. (Warren Esterly), 1881-, Horton, A. H. (Albert Howard), 1875-1945“...Department of the Interior, United States Geological Survey,...”
Published 1917
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11by Grover, Nathan Clifford, 1868-1956, Hall, Warren E. (Warren Esterly), 1881-, Horton, A. H. (Albert Howard), 1875-1945“...Department of the Interior, United States Geological Survey,...”
Published 1920
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12by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1930
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13by Grover, Nathan Clifford, 1868-1956, Hall, Warren E. (Warren Esterly), 1881-, Stevens, Guy C. (Guy Clarke), 1879-“...United States Department of the Interior, Geological Survey,...”
Published 1915
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14by Grover, Nathan Clifford, 1868-1956, Baldwin, G. C., Henshaw, Fred F. (Fred Forbes), 1884-1933“...United States Department of the Interior, Geological Survey,...”
Published 1918
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15by Grover, Nathan Clifford, 1868-1956, Covert, C. C. (Clermont Calvert), 1872-, Horton, A. H. (Albert Howard), 1875-1945, Hoyt, W. G. (William Glenn), 1886-1971, Pierce, C. H. (Charles Henry), 1878-“...United States Department of the Interior, Geological Survey,...”
Published 1917
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16by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1917
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17by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1919
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18by Grover, Nathan Clifford, 1868-1956, Henshaw, Fred F. (Fred Forbes), 1884-1933, McGlashan, H. D. (Harry Deyoe), 1879-“...United States Department of the Interior, Geological Survey,...”
Published 1918
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19by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1921
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20by Grover, Nathan Clifford, 1868-1956, Covert, C. C. (Clermont Calvert), 1872-, Horton, A. H. (Albert Howard), 1875-1945, Hoyt, W. G. (William Glenn), 1886-1971, Pierce, C. H. (Charles Henry), 1878-“...United States Department of the Interior, Geological Survey,...”
Published 1919
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