[SCIENCES] GUISNEE - Application de l'Algèbre à la géométrie ou méthode de démontrer par l'algèbre les Théorèmes de géométrie, & d'en résoudre & construire tous les problèmes By Jean Boudot and Jaque Quillau, Paris, 1705 - A very fine copy of the very rare first edition of this work by a disciple of Varignon, who had him admitted to the Académie des Sciences. The author had to enlist the help of one of his friends to publish the work, which no one else was willing to risk. Montucla judged the work to be highly esteemed (Histoire des Mathématiques) and favorably compared its developments of the theory of algebraic curves and the construction of their equations with M. de l'Hôpital's work. Complete with 6 folding plates. Superb period binding in full calf with 5 ribbed spine, richly ornamented caissons and red morocco title-piece, very fine condition for this important mathematical work, which will be republished several times, but whose original edition remains particularly rare. (66p) 252p (3p)