11To Benjamin Franklin from Cadwallader Colden, [February 1746] (Franklin Papers)
Draft: New-York Historical Society There is no Question but in the case you mention of a ships...
12From Benjamin Franklin to Cadwallader Colden, 10 July 1746 (Franklin Papers)
ALS : New-York Historical Society I have your Favours of June 2d. and the 7th Instant. I thank...
13From Benjamin Franklin to Cadwallader Colden, 16 October 1746 (Franklin Papers)
ALS : New-York Historical Society I have receiv’d your Favour of the 13th. Instant, and am glad...
14From Benjamin Franklin to Cadwallader Colden, 5 June 1747 (Franklin Papers)
ALS : New-York Historical Society Mr. Harrison tells me you are still in New York, as deeply...
15From Benjamin Franklin to Cadwallader Colden, 30 July 1747 (Franklin Papers)
ALS : Yale University Library I receiv’d your Favour of the 26th. which I shall answer at large...
16To Benjamin Franklin from Cadwallader Colden, 3 August 1747 (Franklin Papers)
ALS : New-York Historical Society Baxters [book] was gon so much out of my memory that I could...
17From Benjamin Franklin to Cadwallader Colden, 6 August 1747 (Franklin Papers)
ALS : New-York Historical Society; draft: American Philosophical Society The Observations I sent...
18From 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...
19From 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;...
20From Benjamin Franklin to Cadwallader Colden, 24 September 1747 (Franklin Papers)
ALS : New-York Historical Society I have one of your Histories come in among some Books sent me...