1Thomas Jefferson to Lewis D. Belair, 27 October 1818 (Jefferson Papers)
books; on mathematics [index entry]
2Thomas Jefferson to Lewis D. Belair, 16 November 1818 (Jefferson Papers)
books; on mathematics [index entry]
3Thomas Jefferson to Lewis D. Belair, 23 November 1818 (Jefferson Papers)
books; on mathematics [index entry]
4Thomas Jefferson to Lewis D. Belair, 9 December 1818 (Jefferson Papers)
books; on mathematics [index entry]