1To Benjamin Franklin from Cadwallader Colden, 2 April 1754 (Franklin Papers)
Draft: New-York Historical Society I should have acknowleged your favour of the 1st of January...
2From Benjamin Franklin to Cadwallader Colden, 13 August 1747 (Franklin Papers)
ALS : New-York Historical Society I am glad the electrical Observations please you. I leave them...
3To Benjamin Franklin from Cadwallader Colden, 1 October 1765 (Franklin Papers)
Letterbook copy: New-York Historical Society My regard to you makes me give you the trouble of...
4From Benjamin Franklin to Cadwallader Colden, 4 November 1743 (Franklin Papers)
ALS : New-York Historical Society; also transcript: Library of Congress I received the Favour of...
5From Benjamin Franklin to Cadwallader Colden, 6 August 1747 (Franklin Papers)
ALS : New-York Historical Society; draft: American Philosophical Society The Observations I sent...
6From Benjamin Franklin to Cadwallader Colden, 27 August 1747 (Franklin Papers)
ALS : Yale University Library This just serves to enclose you a Letter from our Friend Bertram;...
7To Benjamin Franklin from Cadwallader Colden, 28 October 1751 (Franklin Papers)
Draft: New-York Historical Society I had the pleasure of receiving yours with the favour of a...
8To Benjamin Franklin from Cadwallader Colden, 28 September 1747 (Franklin Papers)
ALS : American Philosophical Society I am obliged by your favour of the 24th and the Information...
9To Benjamin Franklin from Cadwallader Colden, 17 September 1744 (Franklin Papers)
Draft: Yale University Library I have Yours of the 13th and am glad to find by it that you have...
10From Benjamin Franklin to Cadwallader Colden, 14 May 1752 (Franklin Papers)
ALS : New-York Historical Society I find Parker has been indiscreet enough, to print a Piece in...