1John Adams to Thomas Jefferson, 16 July 1814 (Jefferson Papers)
natural history; study of [index entry]
2John Adams to Thomas Jefferson, 2 March 1816 (Jefferson Papers)
natural history; study of [index entry]
3Benjamin Smith Barton to Thomas Jefferson, 13 July 1810 (Jefferson Papers)
natural history; study of [index entry]
4Joseph C. Cabell to Thomas Jefferson, 23 July 1810 (Jefferson Papers)
natural history; study of [index entry]
5Thomas Cooper’s Notes on University Curricula, [ca. 15–22 September 1814] (Jefferson Papers)
natural history; study of [index entry]
6Theodosius Hansford to University of Virginia Board of Visitors, 15 March 1822 (Jefferson Papers)
natural history; study of [index entry]
7Thomas Jefferson to Peter Carr, 7 September 1814 (Jefferson Papers)
natural history; study of [index entry]
8Thomas Jefferson to Francis Eppes, 6 October 1820 (Jefferson Papers)
natural history; study of [index entry]
9Charles Willson Peale to Thomas Jefferson, 15 January 1818 (Jefferson Papers)
natural history; study of [index entry]
10André Thoüin to Thomas Jefferson, 20 March 1810 (Jefferson Papers)
natural history; study of [index entry]