11To Thomas Jefferson from Robert Patterson, 19 December 1801 (Jefferson Papers)
The art of secret writing, or, as it is usually termed, writing in cypher , has occasionally...
12From Thomas Jefferson to Robert Patterson, 22 March 1802 (Jefferson Papers)
I recieved your favor by mr Engles . the place desired for him is not given by commission from...
13To 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...
14From Thomas Jefferson to Robert Patterson, 17 April 1802 (Jefferson Papers)
Your favor of the 12th. is duly recieved. mr Barnes will write by the present post to his friend...
15To 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....
16To 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...
17From Thomas Jefferson to Robert Patterson, 16 October 1802 (Jefferson Papers)
The inclosed is merely the letter of form communicating the paper it covers to the society. but I...
18To Thomas Jefferson from Robert Patterson, 1 November 1802 (Jefferson Papers)
It was not till the day before yesterday that, upon coming to the city, I received your favour of...
19From Thomas Jefferson to Robert Patterson, 2 March 1803 (Jefferson Papers)
I am now able to inform you, tho’ I must do it confidentially, that we are at length likely to...
20To Thomas Jefferson from Robert Patterson, 15 March 1803 (Jefferson Papers)
I have been honoured with your favour of the 2d. and thank you for your confidence, which I will...