Small 8vo in a contemporary mottled full calf binding. Spine gilt decorated and red edges. Marbled end papers. Hinges split with small losses, but still a tight binding. Small loss at head of spine. Title page with exlibris stamps from a Swedish noble. Half title with a small spot and minor foxing, else a clean and crisp copy. The perpetual secretary d'Alembert here praises Massillon, Despreux, Bossuet, M. de Sacy, de la Motte, Crébillon, and others. In the end a dialog between Descartes and Queen Christina of Sweden. XXXIV, VI, 559 p. , (V).