1To 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...
2To 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...
3To 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...
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...