1From Thomas Jefferson to Andrew Ellicott, 13 March 1801 (Jefferson Papers)
Th: Jefferson having referred mr Ellicott’s letter to the Secretary of the Treasury (mr Dexter)...
2To Thomas Jefferson from Andrew Ellicott, 20 March 1801 (Jefferson Papers)
I have enclosed the first 12 pages of my astronomical observations :—you will perceive they are...
3To Thomas Jefferson from Andrew Ellicott, 13 April 1801 (Jefferson Papers)
I have accompanied this by a few sheets of my observations, they contain an account of the work...
4To 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...
5To Thomas Jefferson from Andrew Ellicott, 16 May 1801 (Jefferson Papers)
No two branches of science have been so much improved the last two centuries as chemistry, and...
6To Thomas Jefferson from Andrew Ellicott, 26 May 1801 (Jefferson Papers)
I have enclosed three more sheets of my astronomical observations.—Pages 109, and 110, contain a...
7To Thomas Jefferson from Andrew Ellicott, 4 June 1801 (Jefferson Papers)
With this you will receive the last pages of my astronomical observations with an extra half...
8To Thomas Jefferson from Andrew Ellicott, 18 August 1801 (Jefferson Papers)
Immediately upon my return from the City of Washington I began the reduction of my Charts to a...
9To Thomas Jefferson from Andrew Ellicott, 10 October 1801 (Jefferson Papers)
I have enclosed the observations made by Mr. Patterson and myself on the lunar eclipse of...
10To Thomas Jefferson from Andrew Ellicott, 2 November 1801 (Jefferson Papers)
I have forwarded by the bearer Mr. Brown the notes to accompany the map which I informed you some...