From William Heberden
AL: American Philosophical Society
[Before Wednesday, April 22, 17674]
Dr. Heberden sends his compliments to Mr. Franklin, and desires the favor of his company at dinner on wednesday next (April 22d.) at half an hour past three.
Addressed: To / Dr. Franklin / Craven Street
4. During BF’s second mission to England April 22 fell on a Wednesday in 1767 and 1772. In accordance with editorial policy Dr. Heberden’s invitation is printed at the earlier date.