1Thomas Jefferson to Destutt de Tracy, 15 May 1817 (Jefferson Papers)
I have to acknolege the reciept of your two letters of Feb. 4. & Dec. 24. 16. and, with the last, your Principes logiques, and a 2 d copy of your 4 th vol. of which I had before recieved a printed one as well as the MS. the Analysis of Dupuy and the luminous tract on public instruction I had possessed some time before, and had availed myself of some of the leading ideas of the latter in the...