1To Thomas Jefferson from Robert Patterson, 18 December 1790 (Jefferson Papers)
You will not, I am persuaded, be displeased with any hint, though from one who has not the honour...
2From Thomas Jefferson to Robert Patterson, 27 March 179[8] (Jefferson Papers)
In the lifetime of mr Rittenhouse I communicated to him the description of the mouldboard of a...
3To Thomas Jefferson from Robert Patterson, 29 March 1798 (Jefferson Papers)
The drawings, model, and description of your mold-board of least resistance , which you have been...
4From Thomas Jefferson to Robert Patterson, 30 March 1798 (Jefferson Papers)
I am much obliged by your letter of yesterday. tho’ I possess Emerson’s fluxions at home, & it...
5From Thomas Jefferson to Robert Patterson, 31 March 1798 (Jefferson Papers)
I return you Emerson with thanks. it has suggested a qualification of the expression in my letter...
6To Thomas Jefferson from Robert Patterson, 25 March 1800 (Jefferson Papers)
I take the liberty of introducing the bearer Mr. Smith an acquaintance of mine from Bucks county....
7From Thomas Jefferson to Robert Patterson, 10 December 1800 (Jefferson Papers)
The annual period for electing a President of the American Philosophical society being now...
8To Thomas Jefferson from Robert Patterson, 2 January 1801 (Jefferson Papers)
I duly received your favour of the 10th. of last month, and communicated your desire to the...
9To Thomas Jefferson from Robert Patterson and Andrew Ellicott, 9 May 1801 (Jefferson Papers)
Should the office of Superintendant of the military stores of the United States, created by an...
10To Thomas Jefferson from Robert Patterson, 8 June 1801 (Jefferson Papers)
Relying on your known goodness—I have taken the liberty of thus introducing the bearer, Mr. John...
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...
21To Thomas Jefferson from Robert Patterson, 18 June 1803 (Jefferson Papers)
I recommended to Capt. Lewis, the use of a statistical Table , in which to set down his...
22To Thomas Jefferson from Robert Patterson, 18 April 1804 (Jefferson Papers)
Understanding from the Secretary at War to Dr. Hunter of this expedition is fitting out for the...
23From Thomas Jefferson to Robert Patterson, 28 April 1804 (Jefferson Papers)
I recieved yesterday your favor of the 18th. with Doctr. Moore’s letter inclosed. by a mistake of...
24From Thomas Jefferson to Robert Patterson, 10 January 1805 (Jefferson Papers)
The bearer hereof mr Cosa is an Italian Physico-mechanic. he employs himself chiefly in...
25From Thomas Jefferson to Robert Patterson, 27 April 1805 (Jefferson Papers)
I have learnt indirectly that mr Boudinot will shortly resign the office of Director of the mint....
26To Thomas Jefferson from Robert Patterson, 30 April 1805 (Jefferson Papers)
Your unexpected & very flattering favour of the 27th. demands my most grateful acknowledgements....
27From Thomas Jefferson to Robert Patterson, 13 June 1805 (Jefferson Papers)
Having now recieved notice from mr Boudinot that he resigns his office as Director of the mint,...
28To Thomas Jefferson from Robert Patterson, 29 June 1805 (Jefferson Papers)
On the receipt of your favour of the 13th. announcing the resignation of Mr. Boudinot, and your...
29From Thomas Jefferson to Robert Patterson, 2 July 1805 (Jefferson Papers)
The failure to send your commission has been an act of forgetfulness of my own, as it should have...
30From Thomas Jefferson to Robert Patterson, 16 November 1805 (Jefferson Papers)
When Capt Lewis’s mission was under contemplation, and it’s principal object the obtaining a...
31To Thomas Jefferson from Robert Patterson, 23 November 1805 (Jefferson Papers)
I have been honoured with your favour of the 16th. inclosing a method of finding the longitude...
32To Thomas Jefferson from Robert Patterson, 14 December 1805 (Jefferson Papers)
A Committee from the Directors of the Bank of the United States have represented to me, as...
33To Thomas Jefferson from Robert Patterson, 16 December 1805 (Jefferson Papers)
The Theodolite, which by advice from Mr. Freeman I purchased of Mr. Biggs, is carefully packed...
34From Thomas Jefferson to Robert Patterson, 29 December 1805 (Jefferson Papers)
A pressure of business has put it out of my power sooner to answer your letter of the 14th. I...
35To Thomas Jefferson from Robert Patterson, 30 December 1805 (Jefferson Papers)
Some years ago, I remember to have laid before you a scheme of secret writing , which you were...
36To Thomas Jefferson from Robert Patterson, 3 January 1806 (Jefferson Papers)
Agreeably to former practice, I have the honor, at the commencement of the present year, to lay...
37To Thomas Jefferson from Robert Patterson, 3 March 1806 (Jefferson Papers)
I beg leave to introduce to your notice Mr. Hassler, a Gentleman lately from Switzerland. He is a...
38To Thomas Jefferson from Chandler Price, 8 March 1806 (Jefferson Papers)
I am informed Mr Patrick Ysnardi Son of Joseph Ysnardi Esqr. American Consul at Cadiz, is now on...
39To Thomas Jefferson from Robert Patterson, 25 June 1806 (Jefferson Papers)
The bearer, Mr. Alexr Stuart, is about to remove from this city to the Havanna in the line of...
40To Thomas Jefferson from Robert Patterson, 4 July 1806 (Jefferson Papers)
At the desire of the author, I have the pleasure of transmitting you the enclosed pamphlet, which...
41To Thomas Jefferson from Robert Patterson, 14 October 1806 (Jefferson Papers)
Mr. Adam Eckfeldt, being a skilful mechanic, was employed by Mr. Rittenhouse, when director of...
42From Thomas Jefferson to Robert Patterson, 17 October 1806 (Jefferson Papers)
Your favor of the 14th. was recieved last night. as to the salaries at the mint which are to be...
43To Thomas Jefferson from Robert Patterson, 21 October 1806 (Jefferson Papers)
According to your desire I have sent you by post, N. As. for 98. 99. 06. 07. & 08 The two...
44To Thomas Jefferson from Robert Patterson, 25 October 1806 (Jefferson Papers)
The inclosed is subjoined, by way of appendix to the 1st vol of an American edition of Adams’s...
45From Thomas Jefferson to Robert Patterson, 5 November 1806 (Jefferson Papers)
I thank you for the Nautical almanacs, and for the two small tracts sent me since. it is only...
46To Thomas Jefferson from Robert Patterson, 1 January 1807 (Jefferson Papers)
At the commencement of the present year, I have the honour of laying before you a Report of the...
47From Thomas Jefferson to Robert Patterson, 5 January 1807 (Jefferson Papers)
I am obliged to return you the inclosed with a request to send me duplicates of them; because I...
48To Thomas Jefferson from Robert Patterson, 7 February 1807 (Jefferson Papers)
The American edition of the nautical Almanac for the year 1809 being just published, I have the...
49To Thomas Jefferson from Robert Patterson, 25 March 1807 (Jefferson Papers)
The prospect of full employment at the mint still continues, and is likely to increase. It is...
50From Thomas Jefferson to Robert Patterson, 29 March 1807 (Jefferson Papers)
I have duly recieved your letter of the 25th. proposing the appointment of an Assistant engraver...