Still-vital lectures on teaching deal with psychology and the teaching art, the stream of consciousness, the child as a behaving organism, education and behavior, native and acquired reactions, habit, association of ideas, attention, memory, acquisition of ideas, perception, will, and more. The three addresses to students are "The Gospel of Relaxation," "On a Certain Blindness in Human Beings," and "What Makes a Life Significant?" Preface. 2 black-and-white illustrations.