BALDWIN, JAMES MARK (1861-1934), American phi losopher, was born at Columbia (S.C.), Jan. 12, 1861, and edu cated at Princeton and several German universities. He was pro fessor of philosophy in the University of Toronto , of psychology at Princeton (1893-1903), of philosophy and psy chology in Johns Hopkins university (1903-09) and in the Na tional University of Mexico until 1913. After lecturing at Oxford and the French provincial universities, he became professor at the Ecole des Hautes Etudes Sociales, Paris, in 1919. Prominent among experimental psychologists, he received many honours from learned societies in America and Europe. His works include: Handbook of Psychology 0889-1891) ; Elements of Psychology (1893) ; Story of the Mind (1898) ; Mental Development in the Child and the Race (1896) ; History of Psychology (1913) ; Between Two Wars (1926) ; and contributions to the Dict. of Philosophy and Psychology (19o1—o5) and the Psychological Review, both of which he edited.