21From Benjamin Franklin to Peter Collinson, 29 July 1754 (Franklin Papers)
ALS : American Philosophical Society I am just return’d from Albany, where were Commissioners...
22From Benjamin Franklin to Peter Collinson, 28 May 1754 (Franklin Papers)
Copy: American Philosophical Society I had at length the pleasure of hearing from you per the...
23From Benjamin Franklin to Peter Collinson, 18 April 1754 (Franklin Papers)
Copy: New-York Historical Society Since September last, having been abroad on two long Journeys,...
24From Benjamin Franklin to Peter Collinson, 1753 (Franklin Papers)
Transcript: Historical Society of Pennsylvania With regard to the Germans, I think Methods of...
25From Benjamin Franklin to Peter Collinson, 23 November 1753 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity...
26From Benjamin Franklin to Peter Collinson, September 1753 (Franklin Papers)
Copy: Massachusetts Historical Society In my former Paper on this Subject, wrote first in 1747,...
27From Benjamin Franklin to Peter Collinson, 26 June 1753 (Franklin Papers)
ALS : Huntington Library I received a Letter from you on the Road hither, with one of the...
28From Benjamin Franklin to Peter Collinson, 9 May 1753 (Franklin Papers)
Copy: New York Public Library; also copies: Public Record Office, American Philosophical Society,...
29From Benjamin Franklin to Peter Collinson, 1752 (Franklin Papers)
Printed in Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp....
30From Benjamin Franklin to Peter Collinson, 1752 (Franklin Papers)
I. MS not found; printed in Benjamin Franklin, Experiments and Observations on Electricity...