SIGAUD DE LA FOND, [Joseph Aignan].

Précis Historique et Expérimental des Phénomènes Électriques, depuis l’origine de cette découverte jusqu’a ce jour.

A Paris: [De l’Imprimerie Demonville,] Rue et Hôtel Serpente. .1781

8vo, pp. xvi, 742, (2), 9 folding engraved plates by Sellier of electrical apparatus and experiments. Contemporary mottled sheep (ends of spine neatly restored, several wormholes in surface of both covers), marbled endpapers, red edges. Dampstain (very faint) in first 40 leaves, foxing and dampstain on 4 other leaves, otherwise a very good copy.

FIRST EDITION, one of several comprehensive books on electricity published by Sigaud de la Fond, who was actually a practitioner of obstetrics as well as a demonstrator of physics. He attended Nollet’s lectures and succeeded him as Professor of Physics and Chemistry at the college at Bourges. The phenomena and laws of electricity are compared and discussed at length, as well as their history and application to medicine. “In the first edition of his Précis Historique, published in 1781, Sigaud claims to have made already in 1756, twenty-five years earlier, a considerable improvement to the electricity machine by replacing the old Hauksbee glass cylinder with a glass disk. The invention is generally attributed to Martin Planta (1727–1772), a seminar director from the Swiss Engadine Valley, who used the disk in 1755” (Ekelöf). Ekelöf 496. Wheeler Gift 505.

£550.00

In stock

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