1Thomas Jefferson’s Account with Joseph Milligan, [8–10 March 1809] (Jefferson Papers)
books; on mathematics [index entry]
2Nicolas G. Dufief to Thomas Jefferson, 5 November 1812 (Jefferson Papers)
books; on mathematics [index entry]
3Samuel Pleasants to Thomas Jefferson, 13 November 1812 (Jefferson Papers)
books; on mathematics [index entry]
4Samuel Pleasants to Thomas Jefferson, 16 December 1812 (Jefferson Papers)
books; on mathematics [index entry]
5Nicolas G. Dufief to Thomas Jefferson, 4 January 1813 (Jefferson Papers)
Books on mathematics are, indeed, rarer than those of classical authors because...
6Enclosure: Nicolas G. Dufief’s Account with Thomas Jefferson for Books, [ca. 31 May 1813] (Jefferson Papers)
books; on mathematics [index entry]
7Thomas Jefferson’s Account with Nicolas G. Dufief, [ca. 4 May 1815] (Jefferson Papers)
books; on mathematics [index entry]
8Nicolas G. Dufief to Thomas Jefferson, 5 August 1815 (Jefferson Papers)
books; on mathematics [index entry]
9Nicolas G. Dufief to Thomas Jefferson, 25 August 1815 (Jefferson Papers)
books; on mathematics [index entry]
10John Manesca and Victor Value to Thomas Jefferson, 16 October 1815 (Jefferson Papers)
...remainder of his life. He wrote books on mathematics and on language education, and in 1835...