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81by Grover, Nathan Clifford, 1868-1956, Hoyt, W. G. (William Glenn), 1886-1971, Lamb, W. A. (William Alfred), 1881-“...Department of the Interior, United States Geological Survey,...”
Published 1915
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82by Grover, Nathan Clifford, 1868-1956, Follansbee, Robert, 1879-1952, Gray, Glenn A., 1884-“...Department of the Interior, United States Geological Survey,...”
Published 1915
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83by Grover, Nathan Clifford, 1868-1956, Follansbee, Robert, 1879-1952, Gray, Glenn A., 1884-“...Department of the Interior, United States Geological Survey,...”
Published 1917
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84by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1918
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85by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1918
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86“...Department of the Interior, United States Geological Survey,...”
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87“...Department of the Interior, United States Geological Survey,...”
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88by Grover, Nathan Clifford, 1868-1956, Follansbee, Robert, 1879-1952, Williams, E. L.“...Department of the Interior, United States Geological Survey,...”
Published 1923
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89by Grover, Nathan Clifford, 1868-1956“...Department of the Interior, United States Geological Survey,...”
Published 1925
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90by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1933
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91by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1933
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92by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1933
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93by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1935
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94by Grover, Nathan Clifford, 1868-1956“...United States Department of the Interior, Geological Survey,...”
Published 1936
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95Published 1939“...United States Department of the Interior, Geological Survey,...”
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96by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1940
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97Published 1942“...United States Department of the Interior, Geological Survey,...”
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98by Parker, Glenn L. (Glenn Lane), 1884-“...United States Department of the Interior, Geological Survey,...”
Published 1943
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99Published 1950“...United States Department of the Interior, Geological Survey,...”
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100by Paulsen, Carl G.“...United States Department of the Interior, Geological Survey,...”
Published 1949
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