ERDMANN, BENNO (1851-1921), German philosopher, was born on May 3o, 1851, at Guhrau, in Prussian Silesia. Edu cated at Berlin and Heidelberg, he was appointed professor suc cessively at Kiel (1878), Breslau (1884), Halle (1890), Bonn (1898) and Berlin (19o9). He occupied himself mainly with Kantian philosophy and the investigation of thought-processes. He died on Jan. 7, 1921, in Berlin. His publications include: Kants Kritizismus (5878); Nachtrage zu Kants Kritik der reinen V ernun f t 0880; Reflexionen Kants zur kritischen Philosophie (1882-84) ; Logik (1892 ; 2nd ed., 190 7) ; Psych. Untersuchungen Tuber das Lesen auf experimentaler Grundlage (1898); Immanuel Kant (19o4) ; Wissenscha f tliche Hypothesen Tuber Leib and Seele (1908) and Reproduktions-psychologie (1920).
See E. Wentscher in Kant Studien, vol. xxvi. (1921) , and tYberweg, Gesch. der Philosophie (bd. iv., 1923).