11From Benjamin Franklin to Peter Collinson, 22 November 1756 (Franklin Papers)
Duplicate: Pierpont Morgan Library; also extract: The Royal Society Since mine of the 5th...
12From Benjamin Franklin to Peter Collinson, 5 November 1756 (Franklin Papers)
ALS : Pierpont Morgan Library; also extract: The Royal Society The above is a Copy of my last,...
13From Benjamin Franklin to Peter Collinson, 23 September 1756 (Franklin Papers)
Duplicate: Pierpont Morgan Library I enclose three Bills, viz. A second for £50 Sterling, drawn...
14From Benjamin Franklin to Peter Collinson, 15 June 1756 (Franklin Papers)
ALS : University of Pennsylvania Library I can now only acknowledge the Receipt of your Favours...
15From Benjamin Franklin to Peter Collinson, 25 October 1755 (Franklin Papers)
Draft: American Philosophical Society The above is a Copy of my last. I hope you have receiv’d a...
16From Benjamin Franklin to Peter Collinson, 27 August 1755 (Franklin Papers)
ALS : Pierpont Morgan Library I received your Favours of May 28 and June 1. I believe I have...
17From Benjamin Franklin to Peter Collinson, 25 August 1755 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity...
18From Benjamin Franklin to Peter Collinson, 26 June 1755 (Franklin Papers)
ALS : Pierpont Morgan Library Mr. Bartram brings a Box to my House, which has a little Vacancy in...
19Deborah Franklin to Peter Collinson, 30 April 1755 (Franklin Papers)
LS : Huntington Library Mr. Franklin is from home, and can not have by this Conveyance an...
20From Benjamin Franklin to Peter Collinson, 29 December 1754 (Franklin Papers)
ALS : Pierpont Morgan Library I wrote a few Lines by a Vessel that went from hence about 2 Weeks...