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  1. Annual report of Captain A.A. Humphreys, topographical engineers, in charge of Office of Explorations and Surveys, War Department, December, 1858.
    By: United States. Office of Explorations and Surveys. - Humphreys, A. A. - Ives, J. C. - Pope, John. - Warren, Gouverneur Kemble,
    Publication info: Washington1859.
    Holding Institution: Library of Congress
    Subjects: Animals  Colorado Exploring Expedition  Colorado River (Colo.-Mexico)  Discovery and exploration  Nebraska  Pecos River (N.M. and Tex.)  Plants  West (U.S.)  
    BHL Collections: Library of Congress
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