41Thomas Jefferson to Joseph Milligan, 9 December 1818 (Jefferson Papers)
books; on mathematics [index entry]
42Thomas Jefferson to Fernagus De Gelone, 27 December 1818 (Jefferson Papers)
books; on mathematics [index entry]
43Thomas Jefferson to Fernagus De Gelone, 22 January 1819 (Jefferson Papers)
books; on mathematics [index entry]
44Thomas Jefferson to Robert Patterson, 14 March 1819 (Jefferson Papers)
books; on mathematics [index entry]
45Thomas Jefferson to John Adams, 21 March 1819 (Jefferson Papers)
books; on mathematics [index entry]
46Thomas Jefferson to James Eastburn & Company, 2 April 1819, with Jefferson’s Note (Jefferson Papers)
books; on mathematics [index entry]
47Thomas Jefferson to Frederick A. Mayo, 9 April 1819 (Jefferson Papers)
books; on mathematics [index entry]
48Thomas Jefferson to Robert Patterson, 7 November 1820 (Jefferson Papers)
books; on mathematics [index entry]
49Thomas Jefferson to Claudius Crozet, 23 November 1821 (Jefferson Papers)
books; on mathematics [index entry]
50Thomas Jefferson to Joseph Echols, 23 May 1822 (Jefferson Papers)
books; on mathematics [index entry]