1William Lambert to Thomas Jefferson, 10 October 1817 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
2Josiah Meigs to Thomas Jefferson, 12 October 1818 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
3William Lambert to Thomas Jefferson, 18 March 1822 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
4Thomas Jefferson to William Lambert, 29 March 1822 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
5Enclosure: William Lambert’s Methods of Calculating the Moon’s Parallaxes, 27–28 June 1822 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
6William Lambert to Thomas Jefferson, 6 July 1822 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
7William Lambert to Thomas Jefferson, 11 July 1822 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]
8Enclosure: William Lambert’s Calculation of the United States Capitol’s Longitude from Greenwich, 11 July 1822 (Jefferson Papers)
longitude; calculations for U.S. Capitol [index entry]