1To Thomas Jefferson from John Armstrong, Jr., 28 October 1807 (Jefferson Papers)
I have put off writing to you, not only to the last day, but litterally to the last hour of Dr....
2To Thomas Jefferson from John Armstrong, Jr., 15 June 1808 (Jefferson Papers)
I had the pleasure of receiving your packet by the St. Michael and of executing your Orders with...
3To Thomas Jefferson from John Armstrong, Jr., 9 August 1806 (Jefferson Papers)
I had yesterday the honor of receiving from a Committee of the Agricultural Society of the Seine,...
4To Thomas Jefferson from John Armstrong, Jr., 28 July 1808 (Jefferson Papers)
M. Warden has already forwarded to you Regnier’s description of the dynamometre, and I have now...
5To Thomas Jefferson from John Armstrong, Jr., 17 February 1806 (Jefferson Papers)
I had not the honor of receiving your letter of the 21st. July ‘till some time in Decr. The young...
6To Thomas Jefferson from John Armstrong, Jr., 2 January 1806 (Jefferson Papers)
I sincerely regret that I should be compelled to give you the trouble of reading the Volume of...
7To Thomas Jefferson from John Armstrong, Jr., 15 February 1808 (Jefferson Papers)
The bearer of this is an active, sober, industreous and brave man, and in the event of a war, may...
8To James Madison from John Armstrong, Jr., 15 October 1807 (Madison Papers)
You will find in this note the substance of certain observations made by the Emperor at a...
9To James Madison from John Armstrong, Jr., 25 October 1808 (Madison Papers)
Hearing that the Charleston packet would not sail before the 1st. of November, I avail myself of...
10To James Madison from John Armstrong, Jr., 24 November 1808 (Madison Papers)
I had the honor in a note of the 24th. ultimo to communicate the terms on which it was understood...