 Feuerbach and Grollmann, on the "Origin of War and its Influence of Civilization", 1788; on the "Progress and Decay of the Sciences", 1789; on the "Rights and Constitution of the Germanic Diet" during the vacancy of the imperial throne, 1792; a philosophical essay on the "Penal Laws of the French Republic"; the "Past, Present, and Future Condition of Germany" considered politically.His works are enumerated, and a very elaborate account of him is to be found in Hasse's "Zeitgenossen", 3rd series, vol.i.