1Thomas Jefferson to Benjamin Smith Barton, 21 September 1809 (Jefferson Papers)
I recieved last night your favor of the 14 th and would with all possible pleasure have communicated to you any part or the whole of the Indian vocabularies which I had collected, but an irreparable misfortune has deprived me of them. I have now been thirty years availing myself of every possible opportunity of procuring Indian vocabularies to the same set of words: my opportunities were...