21From 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...
22From 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...
23From Benjamin Franklin to Cadwallader Colden, 31 October 1751 (Franklin Papers)
Letter: ALS : Historical Society of Pennsylvania; enclosure: AD : New-York Historical Society I enclose you Answers, such as my present Hurry of Business will permit me to make, to the principal Queries contain’d in your Favour of the 28th Instant, and beg Leave to refer you to the latter Piece in the printed Collection of my Papers for farther Explanation of the Difference between what are...
24From Benjamin Franklin to Cadwallader Colden, 23 April 1752 (Franklin Papers)
ALS : New-York Historical Society; also draft: American Philosophical Society In considering your Favour of the 16th. past, I recollected my having wrote you Answers to some Queries concerning the Difference between Electrics per se, and Non Electrics, and the Effects of Air in Electrical Experiments, which I apprehend you may not have received. The Date I have forgot. We have been us’d to...
25From Benjamin Franklin to Cadwallader Colden, 14 May 1752 (Franklin Papers)
ALS : New-York Historical Society I find Parker has been indiscreet enough, to print a Piece in his Paper, which has brought him into a great deal of Trouble. I cannot conceive how he was prevail’d on to do it, as I know him to be a thorough Believer himself, and averse to every thing that is commonly called Freethinking. He is now much in his Penitentials, and requests me to intercede with...
26From Benjamin Franklin to Cadwallader Colden, 14 September 1752 (Franklin Papers)
ALS : New-York Historical Society When I had read your Favour of May the 14th. I resolved to read and consider more carefully Sir Isaac Newton’s Optics, which I have not look’d at these many Years. I delay’d answering, till I should have an Opportunity of doing this; but one thing or other has hitherto hindred. In the Winter I may possibly have more Leisure. In the mean time I would just...
27From Benjamin Franklin to Cadwallader Colden, 28 February 1753 (Franklin Papers)
ALS : New-York Historical Society I return you herewith Professor Kanster’s Remarks. As far as I am able to judge, the Translation is just, and your Answer a good one. I am pleas’d with the Omission of that part of a Paragraph relating to the German and Pensilvanian Electricians, and have corrected the Copy as you direct. I have but one other Alteration to propose, which is, to omit some Part...
28From 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...
29From Benjamin Franklin to Cadwallader Colden, 25 October 1753 (Franklin Papers)
ALS : New-York Historical Society This last Summer I have enjoy’d very little of the Pleasure of Reading or Writing. I made a long Journey to the Eastward, which consum’d 10 Weeks; and two Journeys to our Western Frontier: One of them to meet and hold a Treaty with the Ohio Indians, in Company with Mr. Peters and Mr. Norris. I shall send you a Copy of the Treaty as soon as ’tis printed. I...
30From 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...