London, Royal Society of London, 1782. 4to. In recent marbled wrappers. In ""Philosophical Transactions of the Royal Society of London, Vol. LXXII (72) for the Year 1782, Part I"". A few leaves reinforced in margin, otherwise fine and clean. VII, (1), 237-280.
First edition of Volta's peper in which he announced the invention of the ""condensatore"" for measuring small amounts of atmospheric electricity, otherwise too weak for detection.