1To Benjamin Franklin from William Withering, [before 17 April 1784] (Franklin Papers)
Printed in William Withering, The Miscellaneous Tracts of the Late William Withering; to Which is...
2From Benjamin Franklin to William Withering, 1 March 1784 (Franklin Papers)
ALS : American Philosophical Society Mr Vaughan communicated to me a very ingenious & judicious...