11To 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...
12To 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...
13From Thomas Jefferson to Benjamin Smith Barton, 10 October 1796 (Jefferson Papers)
Your favors should have been sooner acknoleged but that I have been in daily expectation of...
14To 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...
15From Thomas Jefferson to Benjamin Smith Barton, 17 May 1797 (Jefferson Papers)
Th: Jefferson presents his friendly compliments to Dr. Barton and his thanks for his note of...
16To Thomas Jefferson from Benjamin Smith Barton, 26 October 1798 (Jefferson Papers)
I have lately published a new edition of my New Views. I shall endeavour, by the first private...
17From Thomas Jefferson to Benjamin Smith Barton, 1 March 1800 (Jefferson Papers)
Th: Jefferson presents his compliments to Dr. Barton. he is just now beginning to copy the Indian...
18From Thomas Jefferson to Benjamin Smith Barton, 14 February 1801 (Jefferson Papers)
Your favor of Jan. 18 . is duly recieved. the subject of it did not need apology. on the contrary...
19To Thomas Jefferson from Benjamin Smith Barton, 10 March 1801 (Jefferson Papers)
I take the liberty of introducing to your knowledge the bearer of this, Mr. Benjamin Rittenhouse....
20To Thomas Jefferson from Benjamin Smith Barton, 9 February 1802 (Jefferson Papers)
I do myself the honour to introduce to your knowledge, one of our countrymen, Dr. John Watkins ,...