Experiment, 17. Expression, 105, 169. Faculties, 10, 11, 13, 22, 124, 151. Falstaff, 123. Fatalism, 179. Fatigue, 102. Fechner, 18, 19. Feeling, 81, 162. Fibril, 32. Fichte, 15. France, 10. Frederick William, 1, 5. Freedom, 7, 8, 9, 176, 208. Fritsch, 21. Future life, 192, 195. Galileo, 10. Gall, 29. Ganglion cell, 30, 32, 38, 80. Generalization, 126, 128, 134. Goethe, 14, 62. Gray matter, 33, 39. Greece, 192. Greenwich, 20. Hallucination, 79. Handicraft, 202. Harmony, 68. Helmholtz, 17, 76. Heraclitus, 3. Herbart, 12, 13, 14, 18, 19. Herod, 137. Hitzig, 21. Hobbes, 8, 9, 10, 17. Hume, 10. Hypnosis, 179. Hysteria, 29. Ideation, 123. Illusion, 120. Imagery, 98, 128. Imagination, 78, 115, 124, 151. Imitation, 130, 132, 199. Indeterminism, 181. Insane, 143. Instinct, 85, 91, 101, 107, 109, 110, 130, 171, 173, 180, 197. Intelligence, 27, 148. Interest, 89. James, 170. Japan, 205. Jewish prophets, 193. Judgment, 142. Kant, 13, 15, 205. Kinesthetic, 51, 52, 67, 86, 91, 98, 108, 117, 129, 131, 145, 174. Kinnebrook, 20. Knowledge, 152, 157, 184, 189. Labyrinth, 54. Lange, 170. Language, 3, 24, 109, 128, 144, 147, 151, 155. Latent idea, 81. Laughing, 105. Law, 24. Leibniz, 8. Linnæus, 11. Literature, 139. Localization of function, 41, 42, 44. Lotze, 19. Machine, 15. Maskelyne, 20. Mathematics, 13. Medulla, 38. Melody, 68. Memory, 92, 123, 144, 149, 150. Metaphor, 137. Metonymy, 137. Middle Ages, 7. Mind, 47. Money, 165. Monotheism, 193, 209. Mood, 169. Morality, 193, 204. Mosaic law, 209. Motor point, 34. Movement, 105, 108. Müller, Johannes, 17. Münchhausen, 207. Music, 199. Napoleon, 159. Natural science, 6, 8, 9, 16. Neo-Platonic philosophy, 194. Nerve anatomy, 38. Nerve center, 35, 36, 37, 107, 111. Nervous architecture, 34. Nervous process, 33. Nervous system, 27, 28, 36. Neuron, 30, 81. Newton, 10. Noise, 62. Odor, 57. Organic sensation, 56, 170, 174. Otolith, 54, 55, 65. Pain, 53. Painting, 200. Passion, 172. Pathology, 22, 117, 143, 174. Perception, 105, 114, 119. Personal equation, 20. Perspective, 116. Philonic philosophy, 194. Philosophy, 18, 19, 23, 24. Phrenology, 29, 42. Physiology, 16, 17, 19, 21, 22. Plato, 10, 193, 209. Play, 106, 197. Pleasantness, 82, 106. Poetry, 200. Practice, 99, 126. Prayer, 191, 192, 193. Predestination, 179. Priesthood, 191, 195. Priestley, 182. Property, 186. Psychiatry, 23, 24, 28, 143. Psychophysics, 19, 23, 24, 28, 143. Ptolemaic system, 161. Pythagoras, 158. Quantitative, 13, 17. Range of perceptibility, 70. Reality, 153. Reason, 142. Reflex, 86, 107, 110, 170. Reflex arch, 36, 38, 107. Religion, 14, 24, 189, 197, 207, 209. Reproduction, 93, 125. Responsibility, 180. Retina, 73, 75. Rousseau, 15, 183. St. Luke, 137. Schelling, 18. Schopenhauer, 15. Science and religion, 194. Sculpture, 200. Seat of the soul, 29, 41. Self, 145, 166.