Synopses & Reviews
Additional Editor Is Herbert S. Langfeld. Contributing Authors Include Walter Van Dyke Bingham, Edwin Garrigues Boring, Cyril Burt, Richard M. Elliott, Agostina Gemelli, Arnold Gesell, Clark L. Hull, Walter S. Hunter, David Katz, Albert Michotte, Jean Piaget, Henri Pieron, Godfrey Thomson, L. L. Thurstone, And Edward Chace Tolman.