1To Benjamin Franklin from Peter Collinson, 1 June 1747 (Franklin Papers)
ALS : American Philosophical Society I shall be pleased to Hear that Mine per Mesnard and Dowers...
2To Benjamin Franklin from Peter Collinson, 12 April 1748 (Franklin Papers)
ALS : Library Company of Philadelphia I was very fortunate to receive both thy Curious...
3To Benjamin Franklin from Peter Collinson, 14 June 1748 (Franklin Papers)
ALS : University of Pennsylvania Library The Bearer Mr. Kalm Is an Ingenious Man and comes over...
4To Benjamin Franklin from Peter Collinson, 14 September 1749 (Franklin Papers)
ALS : Historical Society of Pennsylvania I was unwilling to loose the Opertunity per Cap. Rice—So...
5To 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...
6To 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...
7To Benjamin Franklin from Peter Collinson, [June 1750] (Franklin Papers)
AL (fragment): Library Company of Philadelphia [ First part missing ] Pray give my respects to...
8To 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...
9To 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...
10To 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...