Sully, 21. _Summa_, 254. Summary, 330. Superstition and religion, 259. Symbolism of Hindoos, 202. Taine, 18, 111, 117, 129, 150, 200. Teleological character of will and imagination, 10. Thales, 134. Titchener, 83. Tolstoi, 151. Tools, 274. Tours, Moreau de, 55, 78, 141. Triptolemus, 269. Tropisms, 75. Tycho-Brahe, 73, 246, 270. Tylor, 99, 123, 125, 131, 139. Tyndall, 238. Tyre, 282. Unconscious, Nature of the, 339; physiological theory, 340, 341. Unconscious cerebration, 53; factor, 50 ff.; factor, not a distinct element in invention, 64. Units of exchange, 286. Unity, Principle of, 79. _Universale post rem_, 84. Utopias, based on author's _milieu_, 303. Utopian imagination, 299. Utopians, indifferent to realization, 309. Van Dyck, 145. Vaucanson, 48. Vedic epoch, 129. Vesication, 5, 7. Vicavakarma, 269. Vico, 174. Vignoli, 128. Vinci, Leonardo da, 58, 149. _Vis a fronte_ and _a tergo_, 11. Vocation, Change of, 172; Choice of, 144. Voltaire, 150. Voluntary activity analogous to creative imagination, 9. Von Baer, 210. Von Hartmann, 224. Wagner, 145. Wahle, 62. Wallace, 96, 99. Wallaschek, 99. Watch, Evolution of the, 270. Watt, James, 66, 244, 270. Wealth, desired from artistic motives, 290. Weber, E. F., 5, 145, 216. Weismann, 148. Wernicke, 100. Wiertz, 39, 206. Will, The broad meaning of, 112; a coordinating function, 9; Effect of, on physiological functioning, 5. Words, Role of, 96. Wundt, 24, 40, 182. Zeller, 226. Ziehen, 61, 62. Zoroaster, 300.