MAHON (Charles). PRINCIPLES OF ELECTRICITY, containing several theorems supported by new experiments, with an analysis of the superior advantages of high and pointed conductors. London & Brussels, Emmanuel Flon, 1781. In-8 of [6]-250 pages, red morocco, gilt fillets on covers, spine ribbed and decorated, gilt edges, (period binding). First edition of the French translation by Abbé Needham, decorated with 6 copper-engraved folding plates and a folded table; it contains descriptions of 71 experiments. A good copy on strong paper from the Starhemberg library. Old label of the Th. Scheler bookshop.