1To Benjamin Franklin from Cadwallader Colden, 29 November 1753 (Franklin Papers)
Draft (letter and enclosure): New-York Historical Society; copy (enclosure only): American...
2To Benjamin Franklin from Cadwallader Colden, 13 February 1754 (Franklin Papers)
ALS : American Philosophical Society The want of an opportunity is the only reason why I have not...
3To 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...
4To Benjamin Franklin from Cadwallader Colden, 2 April 1754 (Franklin Papers)
Draft: New-York Historical Society Any knowlege I have of the winds and other Changes which...
5To Benjamin Franklin from Cadwallader Colden, 20 June 1754 (Franklin Papers)
Draft: New-York Historical Society; also transcript: Library of Congress I inclose the papers...