1From Benjamin Franklin to David Hume, 27 September 1760 (Franklin Papers)
ALS : Royal Society of Edinburgh I have too long postpon’d answering your obliging Letter, a...
2From Benjamin Franklin to David Hume, 21 January 1762 (Franklin Papers)
AL (incomplete): Royal Society of Edinburgh; printed in full in Essays and Observations, Physical...
3From Benjamin Franklin to David Hume, 19 May 1762 (Franklin Papers)
ALS : Royal Society of Edinburgh It is no small Pleasure to me to hear from you that my Paper on...