701From 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...
702From Benjamin Franklin to Cadwallader Colden, 5 December 1760 (Franklin Papers)
ALS : New-York Historical Society I take this first Opportunity of congratulating you most sincerely on your Accession to the Government of your Province, which I am the more pleas’d with, as I learn that the Ministry are well satisfy’d the Administration has fallen into so good Hands, and therefore that you are not like to be soon superseded by the Appointment of a new Governor. The Abbé...
703From Benjamin Franklin to Cadwallader Colden, 30 August 1754 (Franklin Papers)
ALS : New-York Historical Society I have now before me your Favours of July 23. and August 5th. I return Mr. Pyke’s Philosophia sacra. His Manner of Philosophizing is much out of my Way. I am now about to proceed on my Eastern Journey, but hope to be at home in the Winter, the best Season for Electrical Experiments, when I will gladly make any you desire; In the mean time should be glad you...
704From 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...
705From 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 per Mr. Strahan: But Osborne I understand has sent 50 to Mr. Read per Recommendation of Mr. Collinson. I should sell them more readily than he can, I imagine; and he talks of putting them into my hands. Are any of them arriv’d in N York? Enclos’d are two Letters for you. No others are yet come to...
706From 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 Piece enclos’d, the Reading of which gave me a great deal of Pleasure. I show’d it to our Friend Mr. Bertram, who carried it home, and, as he since tells me, is taking a Copy of it; His Keeping of it for that End has prevented my Showing it to any other Gentlemen as you desired; and hitherto prevented...
707From 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 perceive that Osborne, to puff up the Book, has inserted the Charters &c. of this Province, all under the Title of History of the Five Nations , which I think was not fair, but ’tis a common Trick of Booksellers. Mr. James Read, to whom Mr. Osborne has sent a Parcel of Books by Recommendation of Mr....
708From 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 your Assembly, seems to me extreamly unseasonable as well as unjust, and to threaten Mischief not only to your selves but to your Neighbours. It begins to be plain, that the French may reap great Advantages from your Divisions: God grant they may be as blind to their own Interest, and as negligent...
709From 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 publish your Piece on Gravitation, &c., to print it at my own Expence and Risque. If I can be a Means of Communicating anything valuable to the World, I do not always think of Gaining, nor even of Saving by my Business; But a Piece of that kind, as it must excite the Curiosity of all the Learned, can...
710From Benjamin Franklin to Cadwallader Colden, 13 September 1744 (Franklin Papers)
ALS : Yale University Library Dr. Mitchel, a Gentleman from Virginia, came to Town this Morning with Mr. Bertram, and we have been together all Day, which has hindred my Writing to you as I intended. We are to go to Mr. Logan’s tomorrow, when I shall have an Opportunity of knowing his Sentiments of your Piece on Fluxions. I am Sir Your most humble Servant Addressed: To The Honbl Cadwalr...
711From 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 greater Pleasure, as ’twas so long since I had heard from you. I congratulate you on your Return to your beloved Retirement: I too am taking the proper Measures for obtaining Leisure to enjoy Life and my Friends more than heretofore, having put my Printing house under the Care of my Partner David Hall,...
712From Benjamin Franklin to Cadwallader Colden, 14 July 1754 (Franklin Papers)
ALS : New-York Historical Society I am very sorry that our unexpected long Stay at Albany prevents my having the Pleasure of seeing you at this time. Mr. Peters, Mr. Norris and my self, with my Son, came ashore here about 3 aClock with Intent to get a Waggon or Horses to carry us to your House, and the Sloop was to wait for us till tomorrow Noon; but after many fruitless Attempts, Night coming...
713From Benjamin Franklin to David Colden, 5 March 1773 (Franklin Papers)
ALS : New-York Historical Society; letterbook draft: Library of Congress I received your obliging Favour with the Account of your Drill Plough, which appears to me very ingeniously contriv’d the Construction simple and easily executed, and the Description perfectly clear and intelligible. I put it into the Hands of Mr. Arbuthnot, who is a great Connoisseur in such Matters, and seem’d to like...
714From Benjamin Franklin to Richard Nicholls Colden, 18 February 1774 (Franklin Papers)
ALS (letterbook draft): American Philosophical Society I received yours of Dec. 2. and Jany. 5. inclosing the following Bills, viz. Taylor on Goddard £37 10 s. 0 d. Stute on Bogle, Somerville & Co. 31 4 s. 2½ d. Mitchell on Todd 50 4 s.
715From Benjamin Franklin to William Coleman, 12 October 1761 (Franklin Papers)
LAS: Yale University Library I have received your obliging Favours of July 16. and Augt. 15. for which I thank you. The Transit I think would not have appear’d at Philadelphia, if any body had been ready there to observe. It is so far West, that Venus was off the Sun’s Disk before he rose there. I send you Ferguson’s Book on the Subject to which I was a Subscriber, and also a large Scheme of...
716From Benjamin Franklin to William Coleman, 22 February 1757 (Franklin Papers)
Copy, MS minutes: Trustees of the University of Pennsylvania Recollecting Coll. Ludwell’s Donation of £20 Sterling to the Academy, I am desirous of settling it before I go (tho I have not yet heard that his Bill, which I sent home, is accepted.) Therefore, and to save you the Trouble of paying that Interest Money to my Order, I inclose £1 11 s . 3 d ., which added to the Interest Money £32 18...
717From Benjamin Franklin to William Coleman, 8 December 1757 (Franklin Papers)
MS not found; abstract: Minute-Book of the Academy Trustees, Trustees of the University of Pennsylvania At a Meeting of the Trustees at the Academy March 14th 1758 Present Richard Peters Thomas White William Coleman Alexander Stedman Mr. Franklin having by a Letter to Mr. Coleman dated from London Dec. 8th 1757 requested him to inform the Trustees that he had on their Account discharged a Bill...
718From Benjamin Franklin to Michael Collinson, [8 February 1770] (Franklin Papers)
Copy: American Philosophical Society Understanding that it is intended to give the Publick, some Account of our dear departed Friend Mr. Peter Collinson, I cannot omit expressing my Approbation of the Design, as the Characters of good Men are exemplary, and often stimulate the well-disposed to an Imitation beneficial to Mankind, and honourable to themselves. And as you may be unacquainted with...
719From Benjamin Franklin to Peter Collinson, 19 December 1763 (Franklin Papers)
ALS : Yale University Library I am but lately return’d from my Tour of these Northern Colonies, having been from the Southernmost Part of Virginia to the easternmost Part of New England. I think I wrote you from Boston that I had by a Fall dislocated my right Arm at the Shoulder Joint; it is now pretty well recovered, tho’ not quite so strong as before. Your obliging Favours of June 8, and 28;...
720From Benjamin Franklin to Peter Collinson, 29 July 1754 (Franklin Papers)
ALS : American Philosophical Society I am just return’d from Albany, where were Commissioners from seven Provinces to treat with the Indians of the Six Nations. I suppose the Treaty will be printed, and I shall send you a Copy. At present can only mention, that we brighten’d the Chain with them &c. and parted good Friends; but in my Opinion no Assistance is to be expected from them in any...
721From Benjamin Franklin to Peter Collinson, 23 September 1756 (Franklin Papers)
Duplicate: Pierpont Morgan Library I enclose three Bills, viz. A second for £50 Sterling, drawn by Thos. Saul on Wm. Baker. A first — £20 — — Mary Steevens—Alexr. Grant. A first — £30 — — Philip Ludwell Wm. Bowden. When paid, please to Credit my Account with them. I am Yours most affectionately P.S. We agree perfectly well with the Governor, but are very angry with the Proprietors and the...
722From Benjamin Franklin to Peter Collinson, 31 January 1757 (Franklin Papers)
ALS : Pierpont Morgan Library The preceding are Copies of my late Letters; to which I have little to add, except to request you would send the Magazines mention’d in the enclos’d List, which it seems are still wanting to compleat the Sets in the Library. It may be well enough to forbear sending the Universal Magazine for the future, it contains little of Value I inclose also an Almanack, and...
723From Benjamin Franklin to Peter Collinson, 5 November 1756 (Franklin Papers)
ALS : Pierpont Morgan Library; also extract: The Royal Society The above is a Copy of my last, and I now send the two second Bills of Steevens and Ludwell. I wrote then in great Hurry, being just setting out for the Frontiers, to visit some of the Forts with the Governor; a long Journey. Since our Return, I have scarce had a Moment’s Time to write to my Friends, the Assembly sitting twice a...
724From 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, and otherwise much engag’d, I have made but few Observations on the positive and negative State of Electricity in the Clouds. But Mr. Kinnersley kept his Rod and Bells in good Order, and has made many. Once this Winter the Bells rang a long time during a fall of Snow, tho’ no Thunder was heard nor...
725From 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 with some ingenious papers in the late Transactions on the subject of electricity. There is something however in the experiments of points, sending off, or drawing on, the electrical fire, which has not been fully explained, and which I intend to supply in my next. For the doctrine of points is very...
726From Benjamin Franklin to Peter Collinson, 25 October 1755 (Franklin Papers)
Draft: American Philosophical Society The above is a Copy of my last. I hope you have receiv’d a Bill for £75 Sterling. I sent you the 1st per in mine of the 27th of August last, when I wrote for one of Mr. Smeaton’s New Air Pumps for the Academy. I now send another Bill for £30 Sterling on the same Account together with a List of some Philosophical Implements that will be wanted towards our...
727From Benjamin Franklin to Peter Collinson, 9 May 1753 (Franklin Papers)
Copy: New York Public Library; also copies: Public Record Office, American Philosophical Society, and (part only) British Museum Although this is one of Franklin’s most important letters, there has been difficulty about both its date and its recipient. Moreover, it has never been printed accurately, nor can it be here, for no Franklin autograph has been found. The two fullest surviving...
728From Benjamin Franklin to Peter Collinson, 1753 (Franklin Papers)
Transcript: Historical Society of Pennsylvania With regard to the Germans, I think Methods of great tenderness should be used, and nothing that looks like a hardship be imposed. Their fondness for their own Language and Manners is natural: It is not a Crime. When People are induced to settle a new Country by a promise of Privileges, that Promise should be bonâ fide performed, and the...
729From Benjamin Franklin to Peter Collinson, 7 December 1762 (Franklin Papers)
ALS : Pierpont Morgan Library I arrived here the first of last Month, and had the great Happiness, after so long Absence, to find my little Family well, and my Friends as cordial and more numerous than ever. Mr. Bartram I suppose writes to you concerning the great Bones at the Ohio. I have delivered to him and to the Library Company what you sent by me. There is great Complaint here of the...
730From Benjamin Franklin to Peter Collinson, [October 1752] (Franklin Papers)
Printed in Benjamin Franklin, Supplemental Experiments and Observations on Electricity, Part II . … (London, 1753), pp. 108–[9]. (Yale University Library) As you tell me our friend Cave is about to add some later experiments to my pamphlet, with the Errata , I send a coppy of a letter from Dr. Colden which may help to fill a few pages; also my kite experiment in the Pennsylvania Gazette: to...
731From Benjamin Franklin to Peter Collinson, 13 July 1767 (Franklin Papers)
ADS and AD enclosure: British Museum I have heard of an Account you lately received from Russia of some Discovery of an ancient Sepulchre in the Frontiers of that Country. I wish I could see that Account. In the mean time I send you a Passage I have met with in Herodotus, that most ancient Historian, concerning the Sepulchres of the Sythian Kings, which may possibly throw some Light on this...
732From Benjamin Franklin to Peter Collinson, 25 August 1755 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp. 356–9. As you have my former papers on Whirlwinds, &c. I now send you an account of one which I had lately an opportunity of seeing and examining myself. Being in Maryland, riding with Col. Tasker, and some other gentlemen to his country-seat, where I and my son were entertained by...
733From Benjamin Franklin to Peter Collinson, 28 March 1747 (Franklin Papers)
MS not found; reprinted from extract in Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp. 1–2. This is the earliest surviving letter in which Franklin alludes to his electrical investigations. It introduced the fourth edition of his Experiments and Observations in 1769. That edition, its predecessors and its successor, will be discussed below, under their...
734From Benjamin Franklin to Peter Collinson, September 1753 (Franklin Papers)
Copy: Massachusetts Historical Society In my former Paper on this Subject, wrote first in 1747, enlarged and sent to England in 1749, I considered the Sea as the grand source of Lightning, imagining its luminous Appearance to be owing to Electric Fire, produced by Friction between the Particles of Water and those of Salt. Living far from the Sea I had then no opportunity of making Experiments...
735From Benjamin Franklin to Peter Collinson, 1752 (Franklin Papers)
Printed in Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp. 350–4; also draft (fragment): American Philosophical Society. The earliest surviving reference to Franklin’s magic squares and circles is in a letter from James Logan, January 12, 1750 (see above, III , 458), asking him to bring copies of his work to Stenton. Actually, Franklin had first contrived...
736From Benjamin Franklin to Peter Collinson, 19 December 1756 (Franklin Papers)
Duplicate: Pierpont Morgan Library I have now the Pleasure of yours of the 7th and 10th. of September, and have received the old Book of Voyages, the Magazines for August, and Messrs. Hoadly and Wilson on Electricity. We have hitherto preserv’d a good Agreement with our new Governor; tho’ it seems that some evil Counsellors about him would fain get him into a Quarrel with us; but I hope it...
737From 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 hand. Both the Library-Company and the Academy are exceedingly oblig’d to you, and would be glad of any Opportunity of serving you or any of your Friends. The Academy goes on as one could wish: We have excellent Masters, and the Boys improve surprizingly: The Number now 70 and daily encreasing. I...
738From Benjamin Franklin to Peter Collinson, 30 April 1764 (Franklin Papers)
ALS : The British Museum I have before me your kind Notices of Feb. 3. and Feb. 10. Those you enclos’d for our Friend Bartram, were carefully deliver’d. I have not yet seen the Squib you mention against your People, in the Supplement to the Magazine; but I think it impossible they should be worse us’d there than they have lately been here; where sundry inflammatory Pamphlets are printed and...
739From 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 sending to our Library-Company a Tube with Directions how to use it; and as our honourable Proprietor enabled us to carry those Experiments to a greater Height, by his generous Present of a complete Electrical Apparatus; ’Tis fit that both should know from Time to Time what Progress we make. It was in...
740From 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 Electrical Enquiries, we had observ’d some particular Phaenomena, which we lookt upon to be new, and of which I promised to give you some Account; tho’ I apprehended they might possibly not be new to you, as so many Hands are daily employed in Electrical Experiments on your Side the Water, some or other...
741From 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 since, acknowledging the Receipt of your several Favours of July 30. Augt. 6, and 23. and Sept. 18. Sundry Affairs have retarded my Return home, but tomorrow I purpose to set out. I am much oblig’d to you for the favourable Light you put me in, to our Proprietor, as mention’d in yours of July 30. I...
742From 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 and Augt. 20, and some others, with all the Books and Pamphlets you have sent at sundry Times for the Library Company: We wish it were in our Power to do you or any Friend of yours some Service in Return for your long-continued Kindness to us. I am pleas’d to hear that my Electrical Experiments were...
743From 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 it; so I put in my Philosophical Pacquet, which I long since intended to send you, but one thing or other has prevented. I would not have any Part of it printed, (unless you should think that printing the Papers relating to Whirlwinds and Water Spouts, together with a Collection of all the...
744From Benjamin Franklin to Peter Collinson, 23 November 1753 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), p. 165. In my last, via Virginia, I promised to send you per next ship, a small philosophical pacquet: But now having got the materials (old letters and rough drafts) before me, I fear you will find it a great one. Nevertheless, as I am like to have a few days leisure before this ship...
745From Benjamin Franklin to Peter Collinson, 15 June 1756 (Franklin Papers)
ALS : University of Pennsylvania Library I can now only acknowledge the Receipt of your Favours of Feb. 12, 21, 24, 29, and April 1. together with two Boxes, containing Parcels for the Library and John Bartram, all safe and deliver’d. Enclos’d is a 2d Bill for £20 Sterling; the first went in March. When receiv’d please to credit my private Account with it. I send also two other Bills of £50...
746From 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 Electricity, one by the Governor’s Vessel, the other per Mesnard. On some further Experiments since, I have observ’d a Phenomenon or two that I cannot at present account for on the Principles laid down in those Letters, and am therefore become a little diffident of my Hypothesis, and asham’d that I...
747From 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 Observations in Electricity made in Philadelphia 1748. viz. §1. There will be the same Explosion and Shock if the electrified, Phial is held in one Hand by the Hook, and the Coating touched by the other; as when held by the Coating and touched at the Hook. §2. To take the charged Phial safely by the Hook,...
748From Benjamin Franklin to Peter Collinson, 24 September 1764 (Franklin Papers)
ALS : Pierpont Morgan Library I received your kind Letter of June 29. We hear nothing here of the Proprietary”s relenting. If any have it in charge from him to offer Concessions for Peacesake (as we are told from your side the Water they have) they keep them back in hopes the next Election may put the Proprietaries in a Condition not to need the proposing them. A few Days will settle this...
749From Benjamin Franklin to Peter Collinson, 22 November 1756 (Franklin Papers)
Duplicate: Pierpont Morgan Library; also extract: The Royal Society Since mine of the 5th Instant, a long one, per Capt. Snead, I have receiv’d the Air Pump and Apparatus per Rankin. There is some Breakage, of which shall send an Account per next Ship, to have the Glasses renew’d. We are exceedingly oblig’d to you for your Care in the Affair, and return you cordial Thanks. I am just return’d...
750From 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 have laid out on Books and Mathematical Instruments for the Academy, by which I perceive there is but about £20 in your Hands, much too little, I fear, for the Philosophical Apparatus! and the Misfortune is, that our other Expences in purchasing, Building, &c. are like to pinch us so in the...