ROUSSEAU (Jean-Jacques). Collection complète des œuvres. Genève, s.n. [Société typographique de Genève, then Barde, Manget Cie], 1782-1789. 17 volumes in-4, collective reference edition, compiled by Pierre Moultou and Du Peyrou "based on the copy prepared in part by the author himself, and featuring remarkable additions in several works" (Brunet). It is illustrated with a portrait of the author engraved by Saint-Aubin after Maurice-Quentin de La Tour, 37 hors texte figures engraved after drawings by Le Barbier and Moreau le jeune, 10 music plates, a fold-out plate in volume 8 and 13 engraved music plates in volume 9. A fine copy with wide margins. Bound in contemporary full calf, with triple filleted boards, 5-ribbed spine, red morocco title-piece, green morocco head-piece. (some discreet restorations to bindings, accidents to some headpieces).