CONDORCET, Marie Jean Antoine Nicolas Caritat, Marquis de (1743-94). Essai sur l'Application de l'Analyse à la Probabilité des Décisions, Paris: l'Imprimerie Royale, 1785, 4°, FIRST EDITION (title slightly soiled and also frayed at lower outer margin, with stamp on verso, outer margins of early leaves affected by damp, gathering Y with large dampstain at outer margin, some crease-marks throughout), modern red library buckram. [Brunet VI, 472]