1Constantine S. Rafinesque to Thomas Jefferson, 3 April 1821 (Jefferson Papers)
books; on natural history [index entry]
2Rodolph Schaer to Thomas Jefferson, 25 March 1819 (Jefferson Papers)
books; on natural history [index entry]
3Constantine S. Rafinesque to Thomas Jefferson, 25 January 1821 (Jefferson Papers)
books; on natural history [index entry]
4Francis Adrian Van der Kemp to Thomas Jefferson, 7 January 1818 (Jefferson Papers)
books; on natural history [index entry]
5John Hyder to Thomas Jefferson, 14 July 1820 (Jefferson Papers)
books; on natural history [index entry]
6Francis Adrian Van der Kemp to Thomas Jefferson, 5 April 1818 (Jefferson Papers)
books; on natural history [index entry]
7Benjamin Vaughan to Thomas Jefferson, 16 April 1819 (Jefferson Papers)
books; on natural history [index entry]
8Louis H. Girardin to Thomas Jefferson, 6 June 1819 (Jefferson Papers)
books; on natural history [index entry]
9John Laval to Thomas Jefferson, 28 May 1819 (Jefferson Papers)
books; on natural history [index entry]