11To Benjamin Franklin from Peter Collinson, 5 February 1750 (Franklin Papers)
ALS : American Philosophical Society I have so many Obligations to my kind Friend, that I...
12From Benjamin Franklin to Peter Collinson, [2 March 1750] (Franklin Papers)
MS not found; reprinted from The Gentleman’s Magazine , XX (1750), 208. I was very much pleased...
13To Benjamin Franklin from Peter Collinson, 25 April 1750 (Franklin Papers)
ALS : American Philosophical Society I wish I have before this advised my Worthy Friend that his...
14To Benjamin Franklin from Peter Collinson, [June 1750] (Franklin Papers)
AL (fragment): Library Company of Philadelphia [ First part missing ] Pray give my respects to...
15To Benjamin Franklin from Peter Collinson, 3 July 1750 (Franklin Papers)
ALS : Historical Society of Pennsylvania I received thy Letter from the Trustees and Bill per...
16To Benjamin Franklin from Peter Collinson, 11 July 1750 (Franklin Papers)
ALS : Library Company of Philadelphia If I catch the Bagg before its taken away its more than I...
17From Benjamin Franklin to Peter Collinson, 27 July 1750 (Franklin Papers)
Copy: American Academy of Arts and Sciences Mr. Watson I believe wrote his Observations on my...
18From Benjamin Franklin to Peter Collinson, 29 July 1750 (Franklin Papers)
Copy: American Academy of Arts and Sciences As you first put us on Electrical Experiments by...
19From Benjamin Franklin to Peter Collinson, 4 February 1751 (Franklin Papers)
ALS : The Royal Society I receiv’d yours of Oct. 4. via New England, with the Account of what you...
20To Benjamin Franklin from Peter Collinson, 22 February 1751 (Franklin Papers)
ALS : Yale University Library On the other Side is the Account of the Books I now send. I next...