1Thomas Jefferson to John Barnes, 12 October 1816 (Jefferson Papers)
Barnes, John; and Destutt de Tracy’sTreatise on Political Economy [index entry]
2John Barnes to Thomas Jefferson, 21 October 1816 (Jefferson Papers)
Barnes, John; and Destutt de Tracy’sTreatise on Political Economy [index entry]
3Enclosure: Joseph Milligan to John Barnes, 21 October 1816 (Jefferson Papers)
Barnes, John; and Destutt de Tracy’sTreatise on Political Economy [index entry]
4Thomas Jefferson to John Barnes, 31 December 1816 (Jefferson Papers)
Barnes, John; and Destutt de Tracy’sTreatise on Political Economy [index entry]