FRANKLIN, BENJAMIN. Experiments and Observations on Electricity... Fifth Edition. London, 1774. 4to, modern half leather, spine ends slightly rubbed; browned and dampstained throughout, fore-margins chipped, few pages detached. 7 engraved plates--The Annals of Electricity, Magnetism, & Chemistry... Vol. I and II. London, 1837-38. 2 volumes, 8vo, later cloth, spine worn, slightly soiled and rubbed, light foxing on first and last few pages. 28 engraved plates. (3)