Parallelist theory, 132 Perceptible, the, 84, 85 Perception, intermediate character of, 15; of a child, 232 Personality, formation of, 100 Phenomena, auditory, 37; physical, 30, 31; visual, 37 Phenomenism of Berkeley, 109 _note_[26] "Philosophical Review," 70 Philosophy, history of, 200 "Philosophy of Hamilton" (J. S. Mill), 47 Pilon, 113 Plato, 201 Preadaptation, process of, 164-175 Prince, Morton, 70 Probabilism forced upon us, 174 "Psychical Review," 86 "Psychologie," 112 "Psychologie du Raisonnement" (Binet), 113 Psychology, definitions of, 135-175, 265, 266 Rabier, E., 98, 112, 148 Radio-activity, 27 Reason developed according to law, 169 Recapitulation, 256-276 Reid, Thomas, 47, 65, 259 Relativity, principle of, 104, 109, 252 Renouvier, 64, 97, 106, 205, 226 "Revue Generale des Sciences," 10 "Revue de Metaphysique et de Morale," 164, 226 "Revue de Philosophie," 10 Raymond, Du Bois, 73 Ribot, 137 Search, direction of, 5, 6 Sensation, 10, 14, 35, 44, 50, 51, 55; definition of, 60-75; mistrusted by physicists, 28-30; only means of acquaintance with outer world, 10-26, 50, 256-259; physical or mental, 261-266; visual, 73 Sensibility, cerebral, 239, 240; employment in physiology, 61 Separation of consciousness from its object, 126-134 Similarity. See _Law_ Simon, Dr., 209 Societe Francaise de Philosophie, 256 Soul, distinct from body, 77; union of body and, 179-276 Souls, disembodied, 45 Specificity of Nerves. See _Nerves_ Spencer, Herbert, 245 Spiritualism, refutation of, 192, 195, 268, 269 Strong, M., 195 Subject, defined and distinguished from object, 96 Substance, definition of, 102 Substantialism, 134 Symbols, mechanical theories of matter, 27-43 System, nervous, 16, 17, 24, 25, 44, 45, 48, 115, 228, 241, 257, 258, 274, 275 Taine, 79 Theories, modern, 225-233 Thought, not a movement, 7, 8; characteristics of, 76 Truth, 84, 85 Tyndall, 89, 207 Unconsciousness, 127-133 Understanding, categories of the, 103-118 Unknowable, the, 25, 26 Union of mind and body, problem of, 273; of soul and body, 179-276 Verne, Jules, 267 Vogt, Karl, 204 Wave, molecular, 273, 274, 276; nerve, 243 Will, the most characteristic psychical function, 166, 167 World, assembly of sensations, 26; our ideas, 65; external known only by our sensations, 10-26; 50, 256-259 _X_ of matter, 18, 21, 25, 49 Zoologist, visual sensations of, 13 * * * * * THE INTERNATIONAL SCIENTIFIC SERIES. Each Book Complete in One Volume. Crown 8vo. cloth, 5_s._ unless otherwise described. I. FORMS of WATER: in Clouds and Rivers, Ice and Glaciers. By J. TYNDALL, LL.D., F.R.S. With 25 Illustrations. Twelfth Edition. II. PHYSICS and POLITICS; or, Thoughts on the Application of the Principles of 'Natural Selection' and 'Inheritance' to Political Society. By WALTER BAGEHOT. Tenth Edition.