Expeditions and Discoveries Sponsored Exploration and Scientific Discovery in the Modern Age

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You searched for: Creators/Contributors Armstrong, Robert, 1792-1854 Remove constraint Creators/Contributors: Armstrong, Robert, 1792-1854 Repository Gray Herbarium Library, Botany Libraries, Harvard University Remove constraint Repository: Gray Herbarium Library, Botany Libraries, Harvard University Repository Master Microforms, Harvard University Remove constraint Repository: Master Microforms, Harvard University Subjects Amazon River Valley--Discovery and exploration--American Remove constraint Subjects: Amazon River Valley--Discovery and exploration--American Subjects Expeditions--history Remove constraint Subjects: Expeditions--history

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