1Thomas Jefferson to John Minor, 30 August 1814, including Thomas Jefferson to Bernard Moore, [ca. 1773?] (Jefferson Papers)
natural philosophy; TJ on [index entry]
2Thomas Jefferson to William C. Rives, 18 September 1811 (Jefferson Papers)
natural philosophy; TJ on [index entry]
3Thomas Jefferson to George F. Hopkins, 5 September 1822 (Jefferson Papers)
natural philosophy; TJ on [index entry]