German-American psychophysiologist, born at Danzig. Having been extraordinary professor at Freiburg-im-Breisgau, he became in 1892 professor of psychology at Harvard University. Among his more important works are Beiträge zur experimentellen Psychologie (4 vols., Freiburg, 1889–1892); Psychology and Life (New York, 1899); Grundzüge der Psychologie (Leipzig, 1900); American Traits from the Point of View of a German (Boston, 1901); Die Amerikaner (several ed.; Eng. trans., 1904); Science and Idealism (New York, 1906); Philosophie der Werte (Leipzig, 1908); Aus Deutsch-Amerika (Berlin, 1908); Psychology and Crime (New York, 1908). He has been prominently identified with the modern developments of experimental psychology, and his sociological writings display the acuteness of a German philosophic mind as applied to the study of American life and manners. Among his later publications were American Problems from the Point of View of a Psychologist (1910); Psychology and Industrial Efficiency (1912); American Patriotism and Other Social Studies (1913); Psychology and Social Sanity (1914); The War and America (1914); The Peace and America (1915); The Photoplay: a Psychological Study (1916) and To-morrow: Letters to a Friend in Germany (1916). He died in Cambridge, MA, on the 16th of December 1916.
