1To Benjamin Franklin from Benjamin Duffield, 16 May 1779 (Franklin Papers)
ALS : American Philosophical Society You will probably be much surprized at receiving a Letter from this Place, and from one who has so much disgraced the Introduction you were so kind as to favour him with. I cannot without deep Confusion, attempt to address you again— I cannot attempt to excuse my past follies and Indiscretions otherwise than by pleading a natural Volatility and a great flow...