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  1. Correspondence : Bailey and Torrey,
    By: Bailey, Jacob Whitman,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: (1838-1842)  1796-1873  1811-1857  Algae  Bailey, Jacob Whitman,  Correspondence  Diatoms  Marine sediments  Microorganisms  Torrey, John,  United States Exploring Expedition  
    BHL Collections: New York Botanical Garden
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  2. Correspondence : Emory and Torrey,
    By: Emory, William H.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: (William Hemsley),  1796-1873  1811-1887  Correspondence  Emory, William H  Mexican-American Border Region  Plants  Scientific Expeditions  Torrey, John,  United States and Mexican Boundary Survey  West (U.S.)  
    BHL Collections: New York Botanical Garden
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  3. Correspondence : Frémont and Engelmann,
    By: Frémont, John Charles,
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: 1796-1873  1809-1884  1813-1890  Correspondence  Discovery and exploration  Engelmann, George,  Explorers  Frémont, John Charles,  Torrey, John,  West (U. S.)  West (U.S.)  
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  4. Correspondence : Frémont and Torrey,
    By: Frémont, John Charles,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: (1st :  (2nd :  (3rd :  1796-1873  1813-1890  1842)  1843-1844)  1845-1847)  Correspondence  Discovery and exploration  Explorers  Frémont Expedition  Frémont, John Charles,  Plants  Scientific Expeditions  Torrey, John,  West (U.S.)  
    BHL Collections: New York Botanical Garden
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  5. Correspondence : Nicollet and Torrey,
    By: Nicollet, J. N.
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: (Joseph Nicolas),  1786-1843  1796-1873  Correspondence  Discovery and exploration  Mississippi River Valley  Nicollet, J. N  Plants  Torrey, John,  
    BHL Collections: New York Botanical Garden
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  6. Correspondence : Palmer and Torrey,
    By: Palmer, Edward,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: 1796-1873  1831-1911  Correspondence  Discovery and exploration  Palmer, Edward,  Plants  Torrey, John,  West (U.S.)  
    BHL Collections: New York Botanical Garden
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  7. Correspondence : Parry and Engelmann,
    By: Parry, Charles Christopher, - Engelmann, George,
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (William Hemsley),  1796-1873  1809-1884  1811-1887  1814-1875  1823-1890  Boundaries  Correspondence  Emory, William H  Engelmann, George,  Mexico  Parry, Charles Christopher,  Plants  Rocky Mountain Region  Schott, Arthur,  Southwest, New  Torrey, John,  United States  West (U.S.)  
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  8. Correspondence : Parry and Torrey,
    By: Parry, Charles Christopher,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: 1796-1873  1823-1890  Correspondence  Discovery and exploration  Mexican-American Border Region  Parry, Charles Christopher,  Plants  Rocky Mountain Region  Scientific Expeditions  Southwest, New  Torrey, John,  United States and Mexican Boundary Survey  West (U.S.)  
    BHL Collections: New York Botanical Garden
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  9. Correspondence : Schott and Torrey,
    By: Schott, Arthur,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: 1796-1873  1814-1875  Correspondence  Discovery and exploration  Mexican-American Border Region  Plants  Schott, Arthur,  Scientific Expeditions  Torrey, John,  United States and Mexican Boundary Survey  West (U.S.)  
    BHL Collections: New York Botanical Garden
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  10. Correspondence : Torrey and Engelmann,
    By: Torrey, John,
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (John Strong),  (William Hemsley),  1796-1873  1809-1884  1810-1888  1811-1887  1813-1890  1822-1892  1823-1890  Correspondence  Emory, William H  Engelmann, George,  Frémont, John Charles,  Gray, Asa,  New York (State)  Newberry, J. S  Parry, Charles Christopher ,  Plants  Rocky Mountain Region  Southwest, New  Torrey, John,  West (U.S.)  
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  11. Correspondence : Wilkes and Torrey,
    By: Wilkes, Charles,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: (1838-1842)  1796-1873  1798-1877  Correspondence  Scientific Expeditions  Torrey, John,  United States  United States Exploring Expedition  Wilkes, Charles,  
    BHL Collections: New York Botanical Garden
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  12. Drawings/prints associated with USPRR reports & photographs/archival material
    By: Schott, Arthur, - Sprague, Isaac,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: 1796-1873  1811-1895  1814-1875  19th century  Botanical illustration  Discovery and exploration  Drawings (visual works)  Explorers  Pictorial works  Plants  Schott, Arthur,  Scientific Expeditions  Sprague, Isaac,  Torrey, John,  United States Pacific Railroad Expeditions and Sur  West (U.S.)  
    BHL Collections: New York Botanical Garden
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  13. Plant lists, notes, and correspondence : Frémont expeditions,
    By: Torrey, John, - Bigelow, John M. - Gray, Asa,
    Contributed by: Mertz Library, The New York Botanical Garden
    Subjects: (2nd :  (3rd :  (John Milton),  1796-1873  1804-1878  1809-1884  1810-1888  1813-1890  1843-1844)  1845-1847)  Bigelow, John M  Correspondence  Discovery and exploration  Engelmann, George,  Explorers  Frémont Expedition  Frémont, John Charles,  Gray, Asa,  Plants  Scientific Expeditions  Torrey, John,  West (U.S.)  
    BHL Collections: New York Botanical Garden
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