1Destutt de Tracy’s Commentary on Book 2 of Montesquieu’s Esprit des Lois, [ca. 12 June 1809] (Jefferson Papers)
Helvétius, Claude Adrien; letter of on Montesquieu’s Esprit des Lois [index entry]
2Thomas Jefferson to William Duane, 12 August 1810 (Jefferson Papers)
Helvétius, Claude Adrien; letter of on Montesquieu’s Esprit des Lois [index entry]
3Thomas Jefferson’s Translation of Destutt de Tracy’s Commentary on Book 2 of Montesquieu’s Esprit des Lois, [ca. 12 … (Jefferson Papers)
Helvétius, Claude Adrien; letter of on Montesquieu’s Esprit des Lois [index entry]
4Contemporary Translation of Destutt de Tracy’s Commentary on Book 2 of Montesquieu’s Esprit des Lois, [after 16 … (Jefferson Papers)
Helvétius, Claude Adrien; letter of on Montesquieu’s Esprit des Lois [index entry]
5Thomas Jefferson to William Duane, 16 September 1810 (Jefferson Papers)
Helvétius, Claude Adrien; letter of on Montesquieu’s Esprit des Lois [index entry]
6William Duane to Thomas Jefferson, 25 January 1811 (Jefferson Papers)
Helvétius, Claude Adrien; letter of on Montesquieu’s Esprit des Lois [index entry]