1294 - °L'HOSPITAL, Guillaume François Antoine, Marquis de Mesmes. Analytical Treatise on Conic Sections and Their Use in Solving Equations in Both Determined and Indeterminate Problems, Paris 1720. In-4°, calfskin with a scaly grain, slightly rubbed, restoration on the front cover, gilt-ribbed spine, red morocco label, marbled endpapers, red edges, viii + 459 pp. with 32 fold-out plates.

°L'HOSPITAL, Guillaume François Antoine, Marquis de Mesmes. Analytical Treatise on Conic Sections and Their Use in Solving Equations in Both Determined and Indeterminate Problems, Paris 1720. In-4°, calfskin with a scaly grain, slightly rubbed, restoration on the front cover, gilt-ribbed spine, red morocco label, marbled endpapers, red edges, viii + 459 pp. with 32 fold-out plates. Clean text with wide margins. Provenance: Niclas Cliquot d’Eclaire, who received it as a prize for mathematics in Reims in 1746 (inscription signed by Henri Jurain on the verso of the endpaper). L'Hospital’s second and final work, which continues Ph. De la Hire’s studies on conics in the plane. The work was translated into English by Edmund Stone in 1723 and became the standard treatment of the subject in the 18th century.