1From Benjamin Franklin to ———, [February 1746?]. (Franklin Papers)
Draft (fragment): American Philosophical Society has been blown off that Coast. Our Governor...
2From Benjamin Franklin to James Alexander, 15 August 1745 (Franklin Papers)
ALS : American Philosophical Society I return you herewith your Draughts, with a Copy of one of...
3Presentment of the Philadelphia Grand Jury, 3 January 1745 (Franklin Papers)
AD : Historical Society of Pennsylvania To the Worshipful the Mayor, the Recorder and the rest of...
4From Benjamin Franklin to Charles Carter, 18 April 1748 (Franklin Papers)
MS not found; reprinted from Anderson Galleries, Sales Catalogue No. 800 (January 18, 1910), item...
5From Benjamin Franklin to Cadwallader Colden, 10 July 1746 (Franklin Papers)
ALS : New-York Historical Society I have your Favours of June 2d. and the 7th Instant. I thank...
6From Benjamin Franklin to Cadwallader Colden, 13 August 1747 (Franklin Papers)
ALS : New-York Historical Society I am glad the electrical Observations please you. I leave them...
7From Benjamin Franklin to Cadwallader Colden, 6 August 1747 (Franklin Papers)
ALS : New-York Historical Society; draft: American Philosophical Society The Observations I sent...
8From Benjamin Franklin to Cadwallader Colden, 27 August 1747 (Franklin Papers)
ALS : Yale University Library This just serves to enclose you a Letter from our Friend Bertram;...
9From Benjamin Franklin to Cadwallader Colden, 28 June 1750 (Franklin Papers)
ALS : New-York Historical Society I wrote a Line to you last Post, and sent you some Electrical...
10From Benjamin Franklin to Cadwallader Colden, 5 June 1747 (Franklin Papers)
ALS : New-York Historical Society Mr. Harrison tells me you are still in New York, as deeply...
11From Benjamin Franklin to Cadwallader Colden, [February 1746] (Franklin Papers)
ALS : New-York Historical Society I receiv’d yours with others enclos’d for Mr. Bertram and Mr....
12From Benjamin Franklin to Cadwallader Colden, 16 October 1746 (Franklin Papers)
ALS : New-York Historical Society I have receiv’d your Favour of the 13th. Instant, and am glad...
13From Benjamin Franklin to Cadwallader Colden, 13 February 1750 (Franklin Papers)
ALS : Historical Society of Pennsylvania I receiv’d your very kind Letter relating to my...
14From Benjamin Franklin to Cadwallader Colden, 27 January 1748 (Franklin Papers)
AL : New-York Historical Society I received your Favour relating to the Cannon. We have...
15From Benjamin Franklin to Cadwallader Colden, 30 July 1747 (Franklin Papers)
ALS : Yale University Library I receiv’d your Favour of the 26th. which I shall answer at large...
16From Benjamin Franklin to Cadwallader Colden, 24 September 1747 (Franklin Papers)
ALS : New-York Historical Society I have one of your Histories come in among some Books sent me...
17From Benjamin Franklin to Cadwallader Colden, 15 August 1745 (Franklin Papers)
ALS : New-York Historical Society I receiv’d your Favour of the 20th past, with your medical...
18From Benjamin Franklin to Cadwallader Colden, 1 October 1747 (Franklin Papers)
ALS : New-York Historical Society I send you herewith the History of the Five Nations. You will...
19From Benjamin Franklin to Cadwallader Colden, 27 November 1747 (Franklin Papers)
ALS : New-York Historical Society The violent Party Spirit that appears in all the Votes &c. of...
20From Benjamin Franklin to Cadwallader Colden, 28 November 1745 (Franklin Papers)
ALS : New-York Historical Society I shall be very willing and ready, when you think proper to...
21From Benjamin Franklin to Cadwallader Colden, 29 September 1748 (Franklin Papers)
ALS : New-York Historical Society I received your Favour of the 12th Inst. which gave me the...
22From 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...
23From Benjamin Franklin to Peter Collinson, 28 March 1747 (Franklin Papers)
MS not found; reprinted from extract in Benjamin Franklin, Experiments and Observations on...
24From 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...
25From 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...
26From 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...
27From 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...
28James Logan to Peter Collinson, 28 February 1750 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania I have Spent most of this day for the first...
29From 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...
30From Benjamin Franklin to Thomas Darling, 10 February 1747 (Franklin Papers)
ALS : Miss S. Berenice Baldwin, Woodbridge, Conn. (1959) I wrote a Line to you per last Post,...