491From Benjamin Franklin to Samuel Johnson, 9 August 1750 (Franklin Papers)
ALS : Columbia University Library At my Return home I found your Favour of June the 28th. with...
492From Benjamin Franklin to Samuel Johnson, 23 August 1750 (Franklin Papers)
MS not found; reprinted from The Port Folio , n.s., II (1809), 115–16. We received your favour of...
493To Benjamin Franklin from Peter Kalm, 2 September 1750 (Franklin Papers)
ALS : American Philosophical Society Peter Kalm visited Niagara Falls in the summer of 1750. He...
494From Benjamin Franklin to Samuel Johnson, 13 September 1750 (Franklin Papers)
ALS : Columbia University Library I am sorry to hear of your Illness: If you have not been us’d...
495From Benjamin Franklin to Jane Mecom, 20 September 1750 (Franklin Papers)
MS not found; reprinted from Jared Sparks, ed., A Collection of the Familiar Letters and...
496From Benjamin Franklin to John Franklin, 27 September 1750 (Franklin Papers)
Transcript: Vassar B. Carlton, Titusville, Florida (1955) I received yours of the 17th Inst. with...
497Additional Experiment, [27 September 1750] (Franklin Papers)
Copy: American Academy of Arts and Sciences Additional Experiment proving that the Leyden Bottle...
498From 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...
499Land Grant, from Thomas, Lord Fairfax, 20 October 1750 (Washington Papers)
20 Oct. 1750. “The Right Honourable Thomas Lord Fairfax . . . for and in Consideration of the...
500From Benjamin Franklin to James Bowdoin, 25 October 1750 (Franklin Papers)
ALS : Massachusetts Historical Society Enclos’d with this I send you all my Electrical Papers...