VAUGELAS Claude Favre de. New remarks on the French language. Posthumous work. Avec des observations de M. Alemand, avocat au Parlement. Paris, Guillaume Desprez, 1690; large vol. in-12 of [44] ff, 540-[24] pp, contemporary binding in red morocco, gilt fillets framing the boards, arms in the centre, spine ribbed and decorated, gilt edges. Posthumous first edition, rare and important. A member of the first class of the Académie française, Vaugelas worked ceaselessly on this volume without managing to publish it. It is to him that we owe this good word on his deathbed: "je m'en vais ou je m'en vas, l'un et l'autre se dit ou se disent". The treatise was assembled from notes by the Grenoble-born Louis-Augustin Alemand, and dedicated by him to the Marquis de Barbezieux, son of the Marquis de Louvois, Secretary of State to Louis XV. A copy bearing the arms of the dedicatee Louis Le Tellier de Louvois, Marquis de Barbezieux, then Secretary of State for War. The volume subsequently passed into several major collections, with ex-libris: Napoléon Fourgeaud-Lagrège with his ex-libris Res optimæ Res pessimæ; Saint-Genies; Guy de Pourtales; Madeleine and René Junod. - PHP stamp. Slight discolorations and discreet restorations to the corners, otherwise a fine copy.