Paris: Hachette, 1851. First Edition. hardcover. 2 vols., contemporary half-calf; worn, both covers of volume II detached. Paris: Hachette, 1851. very good(-).
One of Cournot's "more important epistemological works" growing out of theoretical physics. (Schumpeter,p. 959). A solid copy, despite binding problems; occasional light foxing and old pencilled notes in the margins.