(Berlin, Haude et Spener, 1746). 4to. No wrappers, as issued in "Memoires de l'Academie Royale des Sciences et Belles-Lettres" Tome I, pp.71-98.
First edition. In this memoir Euler deals with properties shared by Conic Sections and other curves. - Ensestrom E 83
Order-nr.: 35698