21To Thomas Jefferson from David Rittenhouse, 8 May 1791 (Jefferson Papers)
I thank you for a Sight of Mr. Randolph’s Letter. I must Confess I was pleased with Mr. Neville’s...
22To Thomas Jefferson from David Rittenhouse, 26 June 1786 (Jefferson Papers)
Your favour of Jan. 25th. I received some time ago, and likewise all the Nautical Almanacs you...
23To Thomas Jefferson from David Rittenhouse, 21 June 1790 (Jefferson Papers)
I received yours of the 12th. 14th. and 17th. together with the several papers mentioned, to...
24To Thomas Jefferson from David Rittenhouse, 11 June 1792 (Jefferson Papers)
I have read over Mr. Keiths paper carefully, and endeavoured to make out his meaning. He has...
25To Thomas Jefferson from David Rittenhouse, 25 June 1790 (Jefferson Papers)
Since my last letter (and not before) I have read Mr. Whitehursts Book on the Subject of...
26To Benjamin Franklin from David Rittenhouse, 31 December 1780 (Franklin Papers)
ALS : American Philosophical Society Amidst that Hurry of Business and want of Leisure, which is...
27To Thomas Jefferson from David Rittenhouse, 2 July 1790 (Jefferson Papers)
I should not have troubled you with my Algebraical Calculations but for your present inconvenient...
28Proceedings of Commissioners to Settle the Pennsylvania-Virginia Boundary, 27–31 August 1779 (Jefferson Papers)
Baltimore, 27–31 Aug. 1779 . After presenting their respective powers, the commissioners for...
29Enclosure: Assay of Foreign Coins, 7 January 1793 (Jefferson Papers)
In 24 Grains specific gravity In 24 Grains specific gravity Fine Gold Alloy Fine Gold Alloy Date...
30Enclosure: Account of Expenditures for the Mint, [25 March 1793] (Jefferson Papers)
Account of Expenditures for the Purposes of The Mint of the United States Dolls. Cents For...