261To Benjamin Franklin from Jacob Duché, Junior, 6 May 1757 (Franklin Papers)
ALS : American Philosophical Society As you kindly offered me your best Services before you left...
262To Benjamin Franklin from ———, 10 May 1757 (Franklin Papers)
AL (incomplete): American Philosophical Society The accurate determination of longitude by a ship...
263To Benjamin Franklin from David Hall, 4 July 1757 (Franklin Papers)
Letterbook copy: American Philosophical Society My last to you was by the Rebecca, Captain Arthur...
264To Benjamin Franklin from Ezra Stiles, 12 July 1757 (Franklin Papers)
AL (incomplete): Yale University Library Just before you sail’d from New York, you was so good as...
265To Benjamin Franklin from John Bartram, 29 July 1757 (Franklin Papers)
Letterbook copy: Historical Society of Pennsylvania I now take the Freedom of thy usual...
266To Benjamin Franklin from Ferdinand John Paris, 12 August 1757 (Franklin Papers)
Copy: Historical Society of Pennsylvania In Consequence of my Letter to You, of the 10th....
267To Benjamin Franklin from William Sturgeon, 22 August 1757 (Franklin Papers)
Extract: American Philosophical Society Mrs. Franklin favoured me with the Sight of a Letter...
268To Benjamin Franklin from David Hall, 14 September 1757 (Franklin Papers)
Letterbook copy: American Philosophical Society I make no Doubt but long before this comes to...
269To 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...
270To Benjamin Franklin from Isaac Norris, 17 October 1757 (Franklin Papers)
ALS : American Philosophical Society; also letterbook copy: Historical Society of Pennsylvania I...