11William Watson: Notice of Franklin’s Experiments, 11 January 1750 (Franklin Papers)
MS : The Royal Society; also copy: American Academy of Arts and Sciences At the reading of this...
12To Benjamin Franklin from John Pownall, 4 March 1767 (Franklin Papers)
AL : American Philosophical Society Mr. Pownall presents his respectfull Compliments to Dr....
13From Benjamin Franklin to Cadwallader Colden, 11 October 1750 (Franklin Papers)
ALS : New-York Historical Society I have learnt by different hands, that Dr. Mitchel continues in...
14[Diary entry: 14 February 1760] (Washington Papers)
14. Ditto Ditto Do. Do. but cloudy.
15[Diary entry: 10 April 1748] (Washington Papers)
Sunday 10th. We took our farewell of the Branch & travelld over Hills and Mountains to 1 Coddys...
16[Diary entry: 28 August 1773] (Washington Papers)
28. Warm again, with very little Wind and that Southerly.
17To Benjamin Franklin from W. Masters, [1769?] (Franklin Papers)
LS : American Philosophical Society Though I have not the honour of an intimate acquaintance with...
18To Benjamin Franklin from Augustus Gottlieb Spangenberg, 29 January 1756 (Franklin Papers)
Copy: Archives of the Moravian Church, Bethlehem When I think of the Multitude of Things, which...
19To Benjamin Franklin from John Whitehurst, 18 January 1770 (Franklin Papers)
ALS : American Philosophical Society The natural tendency of philosophical minds to promote...
20[Diary entry: 25 December 1773] (Washington Papers)
25. Raining more or less all day with the Wind fresh from the Southward. Snow intirely dissolv’d.