1To Benjamin Franklin from Edward Nairne: Bill and Receipt, 6 September 1765 (Franklin Papers)
DS : American Philosophical Society Bot. of Edwd. Nairne £ s D an Achromatic prospective Glass. with two Eye Glasses in one Slider. that Magnifies Different } 1: 15: – a Set of 6 Inch Magnetts in Mahogany Case 1: 16: – an Electrical Machine, with: 6 Inch Globe in a plain box } 6: 16: 6
2To Benjamin Franklin from Edward Nairne, 19 March 1770 (Franklin Papers)
ALS : Historical Society of Pennsylvania When You did me the pleasure of calling on me last week, I mention’d to You that I had been trying to freeze water in which different quantities of Sea Salt had been dissolv’d, You then said You wish’d I had tasted the Ice, for it was thought to be fresh; At that time I had not tasted it, but since have tried the following Experiment; I took two ounces...