(1752). FRANKLIN (Benjamin). EXPERIMENTS AND OBSERVATIONS ON ELECTRICITY MADE IN PHILADELPHIA, AMERICA. Paris, Durand, 1752. In-8 of 24-70-[10]-222-2bl.-30 pages, marbled calf, spine ribbed and decorated (contemporary binding). First French edition procured by Thomas François and illustrated with a folding plate containing 10 figures. Corners dulled, hinges split.