1From Benjamin Franklin to [Alexander] Colden, 8 April 1760 (Franklin Papers)
Draft: American Philosophical Society I have ordered into your Care from Liverpool 9 Casks and a...
2To Benjamin Franklin from Alexander Colden, 2 July 1771 (Franklin Papers)
ALS : American Philosophical Society The [favour?] of yours of the first May I received by the...
3To Benjamin Franklin from Alexander Colden, 6 August 1771 (Franklin Papers)
ALS : American Philosophical Society The 2d of last Month I wrote you by the Packet in Answer to...
4From Benjamin Franklin to Alexander Colden, 7 October 1772: résumé (Franklin Papers)
ALS (letterbook draft): Library of Congress <London, October 7, 1772. Has acknowledged in...
5From Benjamin Franklin to Alexander Colden, 3 November 1772 (Franklin Papers)
ALS (letterbook draft): Library of Congress Inclos’d I return to you Mackie’s Bill on Molleson...
6From Benjamin Franklin to Alexander Colden, 2 December 1772 (Franklin Papers)
ALS (letterbook draft): Library of Congress I duly received yours of Oct. 10. with the Accounts,...
7From Benjamin Franklin to Alexander Colden, 6 January 1773: résumé (Franklin Papers)
ALS (letterbook draft): Library of Congress <London, January 6, 1773. Returns two protested...
8To Benjamin Franklin from Alexander Colden, 7 January 1773: résumé (Franklin Papers)
ALS : American Philosophical Society <General Post Office, January 7, 1773: Has received...
9From Benjamin Franklin to Alexander Colden, 2 February 1773 (Franklin Papers)
ALS (letterbook draft): Library of Congress I receiv’d yours of Dec. 2. enclosing a Bill Hancock...
10From Benjamin Franklin to Alexander Colden, 3 March 1773: résumé (Franklin Papers)
ALS (letterbook draft): Library of Congress <London, March 3, 1773: Has received Colden’s letter...