1892 Ph.D. at the University of Leipzig under Wilhelm Wundt; 1892-1927 at the Psychological Laboratory at Cornell University; 1894-1927 editor of the Studies from the Department of Psychology of Cornell University; 1894-c.1917 American editor of Mind; 1895-1920 cooperating editor of the American Journal of Psychology; 1909/1911 contributing editor of the Century Dictionary and Cyclopedia (Psychology); 1921-25 editor of the American Journal of Psychology.