41To Benjamin Franklin from David Hartley, 5 July 1779 (Franklin Papers)
Transcript: Library of Congress I send you for fear of accidents copies of two letters wch I have...
42To Benjamin Franklin from David Hartley, 1 September 1779 (Franklin Papers)
Two copies: American Philosophical Society; transcript: Library of Congress Yours of August 20th...
43To Benjamin Franklin from David Hartley, 18 September 1779 (Franklin Papers)
Copy: American Philosophical Society; transcript: Library of Congress I think it very probable...
44To Benjamin Franklin from David Hartley: Two Letters, 11 October 1779 (Franklin Papers)
(I) ALS and copy: American Philosophical Society; (II) ALS : American Philosophical Society;...
45To Benjamin Franklin from David Hartley: Two Letters, 26 October 1779 (Franklin Papers)
(I) ALS : American Philosophical Society; transcript: Library of Congress; (II) ALS : American...
46To Benjamin Franklin from David Hartley, 16 November 1779 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress The enclosed letter wch I...
47To Benjamin Franklin from David Hartley, 3 January 1780 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress It is so long since I have...
48To Benjamin Franklin from David Hartley, 5 January 1780 (Franklin Papers)
ALS : American Philosophical Society; transcript: Library of Congress I writ to you a day or two...
49To Benjamin Franklin from David Hartley, 8 January 1780 (Franklin Papers)
ALS : American Philosophical Society I cannot imagine what has prevented my hearing from you for...
50To Benjamin Franklin from David Hartley, 1 March 1780 (Franklin Papers)
ALS : American Philosophical Society Having been very much chagrined with the delay of the Cartel...