Th: Jefferson returns his thanks to Mr Michaux for the book of his travels & the pamphlet he has been so kind as to send him. he possesses the Flora Americana of his father & has seen his work on the American oaks, both of which are valuable additions to our Botanical libraries. he has no doubt that mr Michaux will increase the debt of science to his family by his further researches in the United States, in which he wishes him all success, and prays him to accept his salutations & respects.