1To Thomas Jefferson from Robert Patterson, 24 April 1802 (Jefferson Papers)
Agreeably to the directions in your favour of the 17th I am getting a stand made for the sextant...
2To Thomas Jefferson from Robert Patterson, 17 April 1802 (Jefferson Papers)
I had the honour, a few days ago , of mentioning to you an interesting experiment which Mr. R....
3To Thomas Jefferson from Robert Patterson, 12 April 1802 (Jefferson Papers)
I have been honored with your favour of the 22d Ult. and feel, with a lively sense, the...