SIGAUD DE LA FOND. Elemens de physique théorique et expérimentale. Second edition. Paris: Gueffier, 1787. 4 volumes in-8; frontispiece and 25 folding plates. Bound in contemporary marbled basane, spine ribbed and decorated. Worm work on the boards, headpieces and spines, with missing leather, rubbing and spotting, but a very fresh copy inside. Armorial bookplate in each volume from the library of the Château des Ormes (owned by the d'Argenson family in the 18th and 19th centuries).