1Thomas Jefferson to Benjamin Smith Barton, 7 March 1815 (Jefferson Papers)
Your letter of Feb. 19. was ten days on it’s passage to me, and this followed by an interval of...
2Thomas Jefferson to Antonio Dugnani, 7 March 1815 (Jefferson Papers)
My friend Doct r Barton proposing, for the benefit of his health, a voyage across the Atlantic ,...