Play of animals, 43; of children, 95. Pleasure, 21, 156. Post-hypnotic suggestion, 160. Projection fibres, 109. Psychology, 1, 55; abnormal, 4; animal, 2, 24; child, 2, 25, 37, 51; comparative, 2, 24; educational, 5, 166; experimental, 4, 101, 122; genetic, 2; individual, 5; introspective, 3, 8; pedagogical, 5; physiological, 4, 101, 122; race, 6; social, 6, 200; variational, 5. Punishment, effect of, 172. R. Race psychology, 6. Rapport, 161. Reaction-time experiments, 126. Reason in animals, 31. Reasoning, 11, 13, 17. Recept, the, 41. Reception, 10. Re-evolution, 122. Reflex actions, 57, 105, 53. Reflex theory of instinct, 30, 34. Right-handedness, 53, 69. Rolandic region, 112. S. Schools, public, advantages of, 95; dangers of, 61. Selection, natural, 31, 202; organic, 34, 50. Self-consciousness, 43, 54, 80, 86. Self-suggestion, 151. Sensation, 10, 21, 22, 107, 109, 146, 179. Senses, the, 10, 101, 107, 109. Sense exaltation, 153. Sensory period, 167. Sentiment, 23. Sexes, difference in mental disposition, 176. Sight, 10; experiments on, 132. Smell, 10. Social heredity, 200; social psychology, 6, 200. Social sense, the, 90. Somnambulism, 153, 159. Speech, 75, 79; defects of, 114. Speech zone, 56, 109, 112. Spinal cord, 105. Spiritual healing, 120. Statistical method of investigation, 143. Stimulation, artificial, 103. Subconscious suggestion, 149. Suggestion, 17, 21, 67, 80, 120, 145, 148, 168, 172. Suggestion, motor, 80. T. Taste, 10. Temperature sense, 10, 124. Thought, 9, 11, 12, 21, 23. Thought-transference, 120. Touch, 10. Toxic method, 104. Tune suggestions, 149. V. Variation, 202; theory of, 30, 218. Variational psychology, 5. Vision, 133. Visual type of mind, 128, 193. W. Will, 19, 78; defects of, 119 Writing, 14, 79. THE END. * * * * * THE LIBRARY OF USEFUL STORIES The Library of Useful Stories. _A series of little books dealing with various branches of useful knowledge, and treating each subject in clear, concise language, as free as possible from technical words and phrases, by writers of authority in their various spheres. Each book complete in itself. Illustrated. 18mo. Cloth. 35 cents net per volume; postage, 4 cents per volume additional._ THE STORY OF EXTINCT CIVILIZATIONS OF THE WEST. By ROBERT E. ANDERSON. M.A., F.A.S. THE STORY OF ALCHEMY. By M. M. PATTISON MUIR. THE STORY OF ANIMAL LIFE. By B. LINDSAY. THE STORY OF THE ART OF MUSIC. By F. J. CROWEST. THE STORY OF THE ART OF BUILDING. By P. L. WATERHOUSE. THE STORY OF BOOKS. By GERTRUDE B. RAWLINGS. THE STORY OF KING ALFRED. By Sir WALTER BESANT. THE STORY OF THE ALPHABET. By EDWARD CLODD. THE STORY OF ECLIPSES. By G. F. CHAMBERS, F.R.A.S. THE STORY OF THE LIVING MACHINE. By H. W. CONN. THE STORY OF THE BRITISH RACE. By JOHN MUNRO, C.E. THE STORY OF GEOGRAPHICAL DISCOVERY. By JOSEPH JACOBS.