1From Benjamin Franklin to Peter Collinson, 28 March 1747 (Franklin Papers)
MS not found; reprinted from extract in Benjamin Franklin, Experiments and Observations on...
2From Benjamin Franklin to Peter Collinson, 25 May 1747 (Franklin Papers)
Copy: American Academy of Arts and Sciences In my last I informed you that In pursuing our...
3To 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...
4From Benjamin Franklin to Peter Collinson, 28 July 1747 (Franklin Papers)
Copy: American Academy of Arts and Sciences The inclosed is a Copy of my last, which went by the...
5From Benjamin Franklin to Peter Collinson, 14 August 1747 (Franklin Papers)
ALS : Pierpont Morgan Library I have lately written two long Letters to you on the Subject of...
6To Benjamin Franklin from Peter Collinson, 12 April 1748 (Franklin Papers)
ALS : Library Company of Philadelphia I was very fortunate to receive both thy Curious...
7To 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...
8From Benjamin Franklin to Peter Collinson, 18 October 1748 (Franklin Papers)
ALS : Pierpont Morgan Library I have receiv’d your several Favours of April 1. June 2. June 14...
9From Benjamin Franklin to Peter Collinson, 29 April 1749 (Franklin Papers)
Copy: American Academy of Arts and Sciences I now send you some Further Experiments and...
10To 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...
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...
21To Benjamin Franklin from Peter Collinson, 27 March 1751 (Franklin Papers)
ALS : American Philosophical Society I am now so prodigiously Engagd as well in my publick...
22From Benjamin Franklin to Peter Collinson, 21 May 1751 (Franklin Papers)
ALS : Pierpont Morgan Library Budden is arrived, and every thing you sent per him come safe to...
23From Benjamin Franklin to Peter Collinson, 29 June 1751 (Franklin Papers)
Copy: The Royal Society In Capt. Waddels Account *Ph. Tr. No. 492. p. III . of the Effects of...
24From Benjamin Franklin to Peter Collinson, 1752 (Franklin Papers)
Printed in Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp....
25From Benjamin Franklin to Peter Collinson, 1752 (Franklin Papers)
I. MS not found; printed in Benjamin Franklin, Experiments and Observations on Electricity...
26To Benjamin Franklin from Peter Collinson, 3 June 1752 (Franklin Papers)
ALS : American Philosophical Society I have wrote you before possibly you may receive Two Letters...
27To Benjamin Franklin from Peter Collinson, 7 July 1752 (Franklin Papers)
ALS : American Philosophical Society I had the pleasure of my Dear friends Letter of 21 March...
28To Benjamin Franklin from Peter Collinson, 15 August 1752 (Franklin Papers)
ALS : Haverford College Library I had the pleasure of my Dear friend Letter of June 19th: It...
29To Benjamin Franklin from Peter Collinson, 27 September 1752 (Franklin Papers)
ALS : American Philosophical Society In thine of June 19 mention is made of not receiveing a...
30From Benjamin Franklin to Peter Collinson, [October 1752] (Franklin Papers)
Printed in Benjamin Franklin, Supplemental Experiments and Observations on Electricity, Part II ....
31From Benjamin Franklin to Peter Collinson, 1753 (Franklin Papers)
Transcript: Historical Society of Pennsylvania With regard to the Germans, I think Methods of...
32To Benjamin Franklin from Peter Collinson, 27 January 1753 (Franklin Papers)
ALS : American Philosophical Society Tho’ I am much engaged yett I cannot Lett Mesnard Sail...
33To Benjamin Franklin from Peter Collinson, 7 March 1753 (Franklin Papers)
ALS : Haverford College I hope Mine by First Ships with some Books for L:C: [Library Company] as...
34To Benjamin Franklin from Peter Collinson, 21 March 1753 (Franklin Papers)
ALS : American Philosophical Society By the Conveyance of our friend Mr. Watson whose Letter I...
35From Benjamin Franklin to Peter Collinson, 9 May 1753 (Franklin Papers)
Copy: New York Public Library; also copies: Public Record Office, American Philosophical Society,...
36From 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...
37To Benjamin Franklin from Peter Collinson, 3 July 1753 (Franklin Papers)
ALS : American Philosophical Society Received June the 30. 1753. On Board the London for...
38To Benjamin Franklin from Peter Collinson, 20 July 1753 (Franklin Papers)
ALS : American Philosophical Society It is a great pleasure to Mee to receive so many repeated...
39To Benjamin Franklin from Peter Collinson, 12 August 1753 (Franklin Papers)
ALS : American Philosophical Society I have much to say but am on the Eve of marrying My Daughter...
40From Benjamin Franklin to Peter Collinson, September 1753 (Franklin Papers)
Copy: Massachusetts Historical Society In my former Paper on this Subject, wrote first in 1747,...
41To Benjamin Franklin from Peter Collinson, 15 September 1753 (Franklin Papers)
ALS : American Philosophical Society As no Ship will Sail from Hence in a Month or 3 Weeks I take...
42From Benjamin Franklin to Peter Collinson, 23 November 1753 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity...
43To Benjamin Franklin from Peter Collinson, 14 January 1754 (Franklin Papers)
ALS : American Philosophical Society I am so disheartend at the Loss of Capt. Davis, that I...
44To Benjamin Franklin from Peter Collinson, 26 January 1754 (Franklin Papers)
ALS : American Philosophical Society As I emptied my Budget Largely by unfortunate Capt. Davis...
45To Benjamin Franklin from Peter Collinson, 7 March 1754 (Franklin Papers)
ALS : American Philosophical Society Your favours of the 16 and 7th and 29 came not to My Hands...
46From 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,...
47From 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...
48From Benjamin Franklin to Peter Collinson, 29 July 1754 (Franklin Papers)
ALS : American Philosophical Society I am just return’d from Albany, where were Commissioners...
49From 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...
50From 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...