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 Creators/Contributors Herndon, William Lewis, 1813-1857 Remove constraint Creators/Contributors: Herndon, William Lewis, 1813-1857 Subjects Amazon River Valley--Description and travel Remove constraint Subjects: Amazon River Valley--Description and travel
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