1From Benjamin Franklin to Cadwallader Colden, 11 October 1750 (Franklin Papers)
ALS : New-York Historical Society I have learnt by different hands, that Dr. Mitchel continues in a bad State of Health, which I suppose obliges him to drop his Correspondencies. ’Tis a Loss to us all. Messrs. Bertram and Evans did not go their intended Journey to Lake Erie, but are both safe at home. Mr. Weiser is just return’d from Onondago, and gives a melancholly Account of the declining...
2From Benjamin Franklin to Cadwallader Colden, 26 February 1763 (Franklin Papers)
ALS : New-York Historical Society; draft (incomplete): American Philosophical Society Your Favour of the 14th. Instant, I met on the Road in my Journey to this Place with my Son, who joins with me in Thanks for your good Wishes relating to his Administration here. I thank you also for your kind Endeavours in obtaining the Discharge of William Forrester, who is accordingly discharged. I condole...
3From Benjamin Franklin to Cadwallader Colden, 6 December 1753 (Franklin Papers)
Letter: ALS : New-York Historical Socity; enclosure: draft: American Philosophical Society I receiv’d your Favour of the 29th past, with some Remarks on my meteorological Paper, for which I thank you, and return some Observations on those Remarks, hoping by this Friendly Intercourse of Sentiments and Objections, some Advantage will arise to the Increase of true Knowledge. I sent you our Treaty...
4From 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 you for your little Treatise. I have interleav’d it, and am Reading it and Making Remarks as Time permits. I deliver’d one, as you directed, to Mr. Evans; another to Mr. Bertram. The former declares he cannot understand it; the latter told me the other Day, that he could not read it with the...
5From 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 in your hands another Week. Our Workmen have undertaken the Electrical Apparatus, and I believe will do it extreamly well: It being a new Job they cannot say exactly what their Work will come to, but they will charge reasonably when done, and they find what Time it has taken. I suppose the whole...
6From Benjamin Franklin to Cadwallader Colden, 4 November 1743 (Franklin Papers)
ALS : New-York Historical Society; also transcript: Library of Congress I received the Favour of yours, with the Proposal for a new Method of Printing, which I am much pleased with: and since you express some Confidence in my Opinion, I shall consider it very attentively and particularly, and in a Post or two send you some Observations on every Article. My long Absence from home in the Summer,...
7From Benjamin Franklin to Cadwallader Colden, 12 April 1753 (Franklin Papers)
ALS : New-York Historical Society I received your Favour of March 20. and a subsequent one without Date, containing the Description of Lord Macclesfield’s Mural Quadrant. No Vessel has sail’d hence for England these three Months, but one goes next Week by which I shall send your Answer to the German Professor, corrected as you direct. I see it is not without Reluctance that the Europeans will...
8From Benjamin Franklin to Cadwallader Colden, 6 August 1747 (Franklin Papers)
ALS : New-York Historical Society; draft: American Philosophical Society The Observations I sent you on Baxter’s Book were wrote on a Sheet or two of Paper in Folio. He builds his whole argument on the Vis Inertiae of Matter: I boldly deny’d the Being of such a Property, and endeavour’d to demonstrate the contrary. If I succeeded, all his Edifice falls of course, unless some other way...
9From 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; and to request you would deliver my Papers on Electricity to the Bearer Mr. Darling. I have not Time to add, but that I am, with great Respect, Sir, Your most humble Servant P.S . I think you wrote me Word you had lent Watson’s Book on Electricity which I sent you last Winter to Dr. Bard. Please to...
10From 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 Observations and Experiments. You formerly had those Papers of mine out of which something has been taken by Mr. Watson, and inserted in the Transactions: If you have forgot the Contents of those Papers, I am afraid some Things in that I last sent you will be hardly understood, as they depend on...