1From Benjamin Franklin to John Pringle, 21 December 1757 (Franklin Papers)
ALS : The Royal Society The following is what I can at present recollect, relating to the Effects...
2From Benjamin Franklin to John Pringle, 6 January 1758 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity...
3From Benjamin Franklin to John Pringle, 27 May 1762 (Franklin Papers)
ALS : Princeton University Library For nearly twenty years Franklin had been interested in the...
4From Benjamin Franklin to John Pringle, 1 December 1762 (Franklin Papers)
MS not found; reprinted from Benjamin Franklin, Experiments and Observations on Electricity...
5From Benjamin Franklin to Sir John Pringle, [1767?] (Franklin Papers)
Draft: American Philosophical Society I have attentively perused the Remarks of Capt. Coats,...
6From Benjamin Franklin to Sir John Pringle, 10 May 1768 (Franklin Papers)
Printed in Benjamin Franklin, Experiments and Observations on Electricity … London, 1769), pp....
7From Benjamin Franklin to Sir John Pringle, [before 10 May 1772] (Franklin Papers)
AL (draft): American Philosophical Society Dr. F. presents his respectful Compliments to Sir J....