1To Benjamin Franklin from Jan Ingenhousz, 20 August 1782 (Franklin Papers)
ALS : American Philosophical Society I Was very happy in recieving your lettre containing the explication of the stroke of lightning at Cremona, and an other, dated July 4th, which came to hand before yesterday. Recieve my most harty thanks for both these favours and particularly for your kindness of forwarding my lettre to mr. Sam. Wharton and joining to it an admonitory note of your own on...