1To Thomas Jefferson from Benjamin Smith Barton, 1 August 1796 (Jefferson Papers)
Mrs. Rittenhouse has received the letter (dated July 3d), which was directed to her excellent...
2To Thomas Jefferson from Benjamin Smith Barton, 5 September 1796 (Jefferson Papers)
Sometime since, I wrote to you, in answer to the letter which you had written to my deceased...
3To Thomas Jefferson from Benjamin Smith Barton, 25 October 1796 (Jefferson Papers)
Your letter has come safe to hand. I am extremely glad to learn, that a number of the bones of...