but now exploded, theory of the vibration of the air. The son's other works are: Système universel (8 vols., 1812); Du Sort de l'homme (3 vols., 1820); Cours de philosophie (8 vols., 1824), reproduced as Explication universelle (3 vols., 1826–1828); Jeunesse, maturité, religion, philosophie (1837); De la phrénologie, du magnétisme, et de la folie (1843). References Attribution External links 19th-century French philosophers 1766 births 1845 deaths French male non-fiction writers 19th-century French male writers