1To Thomas Jefferson from Henry Roi, 15 February 1823 (Jefferson Papers)
Without any recommendation of Individual, I take the freedom to apply to the friend of Mankind.!...
2Henry Roi: Extract of a System, or a new order of things, 15 Feb 1823, 15 February 1823 (Jefferson Papers)
Extract of A new system, or a new order of things, delightful Dreams if ever any were! An Essay....