Cousin, J. A. J., — Traite du Calcul Differentiel et de Calcul Integral (Draft of Differential and Integral Calculus) (in French).

Paris, Regent & Bernard, 1796. Very Good. Permiere Partie has 319 pp plus 6 fold-out pages of figures and Seconde partie has 284 pp. Corners and edges worn, spine worn,. contents tight and clean. "Cousin's work is important in connections with the theory of partial differential equations (Cantor's Verlesungen vol IV, pp 951/6)".