1To Benjamin Franklin from William Henly, [28 October? 1772] (Franklin Papers)
ALS : American Philosophical Society I have this morning received the [enclosed] Letter from a...
2To Benjamin Franklin from William Henly: Account of an Experiment, 7 October 1771 (Franklin Papers)
AD (incomplete): American Philosophical Society; remainder printed in the Royal Society,...
3To Benjamin Franklin from William Henly, [June?] 17, [1772?] (Franklin Papers)
ALS : American Philosophical Society Having Received an Account from Dr. Priestley that he could...
4To Benjamin Franklin from William Henly, 29 January 1771 (Franklin Papers)
ALS : American Philosophical Society I think myself highly honour’d by your very obliging favour,...
5To Benjamin Franklin from William Henly, [30 December 1772] (Franklin Papers)
ALS : American Philosophical Society I send you herewith the paper of your experiments, and shall...
6To Benjamin Franklin from William Henly, 28 November 1772 (Franklin Papers)
AD and draft: American Philosophical Society; printed in the Royal Society, Philosophical...
7To Benjamin Franklin from William Henly, [26 November? 1772] (Franklin Papers)
ALS : American Philosophical Society I have Received your very obliging favour, and take the...
8To Benjamin Franklin from William Henly, [April? 1772] (Franklin Papers)
ALS : American Philosophical Society I have this day repeated in the most accurate manner I was...
9To Benjamin Franklin from William Henly, [after 4 May 1772] (Franklin Papers)
ALS : American Philosophical Society This letter poses a problem of dating that we are unable to...
10To Benjamin Franklin from William Henly, 18 April 1773 (Franklin Papers)
ALS : American Philosophical Society This letter poses a remarkable problem of dating, and we...
11To Benjamin Franklin from William Henly, [1772?] (Franklin Papers)
ALS : Historical Society of Pennsylvania I think myself exceedingly obliged to you for your...