CHALYBAUS, HEINRICH MORITZ Ger man philosopher, was born at Pf aff roda in Saxony. He lectured at Dresden on the history of German philosophy, and in became professor in Kiel university. His first published work Historische Entwickelung der spekulativen Philosophie von Kant bis Hegel (1837, Eng. tr. 1854), still ranks among the best expo sitions of 19th century German thought. His chief works are Entwurf eines Systems der Wissenschaftslehre (Kiel, 1846) and System der spekulativen Etliik (185o).