New Experiments and Observations on Electricity. Made at Philadelphia in America. By Benjamin Franklin, Esq; Communicated to P. Collinson, Esq; of London, F.R.S. And read at the Royal Society June 27, and July 4, 1754. To which are added A Paper on the same Subject by J. Canton, M.A. F.R.S. and read at the Royal Society Dec. 6, 1753; and another in defence of Mr Franklin against the Abbe Nollet, by Mr D. Colden, of New York. Part III. London: Printed and sold by D. Henry, and R. Cave, at St. John’s-Gate. 1754. (Yale University Library)