1David Colden: Remarks on Nollet’s Letters, [4?] December 1753 (Franklin Papers)
Draft: New-York Historical Society In considering the Abbe Nolet’s Letters to Mr. Franklin I am oblidged to pass by all the experiments which are made with or in bottles hermetically Sealed, or exhausted of Air because not being able to repeat the experiments I could not second any thing which occurs to me thereon by experimental proofe. Wherefore the first point of which I can dare to give my...
2To Benjamin Franklin from David Colden, 12 August 1756 (Franklin Papers)
Draft: New-York Historical Society You oblidged me very much by communicating your Electrical Experiments made in pursuance of those by Mr. Canton: I shall think myself fully rewarded for my attempts in Electricity if I can thereby procure the notice of one whose Labours always aford agreable instruction to those who are desirous of discovering truth. Altho’ I have not intirely laid aside...
3To Benjamin Franklin from David Colden, 18 September 1757 (Franklin Papers)
Draft: New-York Historical Society About the time you left America I was employed in endeavouring with my Fathers assistance to form an Explication of the Phenomena of Electricity, on his Principles of Action in Matter; some conceptions had occurred to me in pursuing the Experiments made by you and Mr. Canton which gave me reason to hope it might be effected, on very simple principles. If you...
4To Benjamin Franklin from David Colden, 26 October 1758 (Franklin Papers)
ALS : American Philosophical Society; draft (incomplete): New-York Historical Society About the time you left America, I was employd in endeavouring, with my Fathers assistance, to form an explication of the phenomena of Electricity, on his Principles of action in matter: some conceptions had occur’d to me in pursuing the Experiments made by you and Mr. Canton, which gave me reason to hope it...
5To Benjamin Franklin from David Colden, 30 November 1772 (Franklin Papers)
AL (draft ): New-York Historical Society The attention you pay to every Invention that promises either utility or amusement to Mankind induces Me to communicate to you a very simple Machine which I have made this Year for sowing Seeds in Rows. I am happy in haveing an opportunity of addressing you upon any Thing that may be worth your Notice; If it shall prove of no real value to others, it...