1From Benjamin Franklin to John Coakley Lettsom, 6 [or 17] March 1783 (Franklin Papers)
Reprinted from Thomas Joseph Pettigrew, ed., Memoirs of the Life and Writings of the Late John Coakley Lettsom … (3 vols., London, 1817), I , 171–2 of second pagination. I received your favour of September last. It found me labouring under a painful disorder, which continued long, and put me much behind-hand in my correspondence. I thank you for the valuable publications that accompanied it,...