Abstract ideas, 240, 25;
characters, 353;
propositions, 354
Abstraction, 251;
see Distraction
Accommodation, of crystalline lens, 32;
of ear, 49
Acquaintance, 14
Acquisitiveness, 407
Action, what holds attention determines, 448
After-images, 43-5
Agassiz, 132
Alexia, 113
Allen, Grant, 104
Alternating personality, 205 ff.
Amidon, 132
Analysis, 56, 248, 251, 362
Anger, 374
Aphasia, 108, 113;
loss of images in, 309
Apperception, 326
Aqueduct of Silvius, 80
Arachnoid membrane, 84
Arbor vitæ, 86
Aristotle, 318
Articular sensibility, 74
Association, Chapter XVI;
the order of our ideas, 253;
determined by cerebral laws, 255;
is not of ideas, but of things thought of, 255;
the elementary principle of, 256;
the ultimate cause of is habit, 256;
indeterminateness of its results, 258;
total recall, 259;
partial recall and the law of interest, 261;
frequency, recency, vividness, and emotional congruity tend to determine the object recalled, 264;
focalized recall or by similarity, 267, 364;
voluntary trains of thought, 271;
problems, 273
Atomistic theories of consciousness, 462
Attention, Chapter XIII;
its relation to interest, 170;
its physiological ground, 217;
narrowness of field of consciousness, 217;
to how many things possible, 219;
to simultaneous sight and sound, 220;
its varieties, 220;
voluntary, 224;
involuntary, 220;
change necessary to, 226;
its relation to genius, 227;
physiological conditions of, 228;
the sense-organ must be adapted, 229;
the idea of the object must be aroused, 232;
pedagogic remarks, 236;
attention and free-will, 237;
what holds attention determines action, 448;
volitional effort is effort of attention, 450
Auditory centre in brain, 113
Auditory type of imagination, 306
Austen, Miss, 261
Automaton theory, 10, 101
Azam, 210

Bahnsen, 147
Bain, 145, 367, 370
Berklev, 302, 303, 347
Binet, 318, 332
Black, 45-6
Blind Spot, 31
Blix, 64, 68
Blood-supply, cerebral, 130
Bodily expression, cause of emotions, 375
Brace, Julia, 252
Brain, the functions of, Chapter VIII, 91
Brain, its connection with mind, 5-7;
its relations to outer forces, 9;
relations of consciousness to, 462
Brain, structure of, Chapter VII, 78 ff.;
vesicles, 78 ff.;
dissection of sheep's, 81;
how to preserve, 83;
functions of, Chapter VIII, 91 ff.
Bridgman, Laura, 252, 308
Broca, 109, 113, 115
Broca's convolution, 109
Brodhun, 46
Brooks, Prof. W. K., 412
Brutes, reasoning of, 367

Calamus scriptorius, 84
Canals, semicircular, 50
Carpenter, 223, 224
Cattell, 125, 126, 127
Caudate nucleus, 81, 86
Centres, nerve, 92
Cerebellum, its relation to equilibrium, 76;
its anatomy, 79, 84
Cerebral laws, of association, 255
Cerebral process, see Neural Process
Cerebrum, see Brain, Hemisphere
Changing character of consciousness, 152, 466
Charcot, 113, 309
Choice, see Interest
Coalescence of different sensations into the same 'thing,' 339
Cochlea, 51, 52
Cognition, see Reasoning
Cold, sensations of, 63 ff.;
nerves of, 64
Color, 40-3
Commissures, 84
Commissure, middle, 88 ff.;
anterior, 88;
posterior, 88
Comparison of magnitudes, 342
Compounding of sensations, 23, 43, 57
Compound objects, analysis of, 248
Concatenated acts, dependent on habit, 140
Conceiving, mode of, what is meant by, 354
Conceptions, Chapter XIV;
defined, 239;
their permanence, 239;
different states of mind can mean the same, 239;
abstract, universal, and problematic, 240;
the thought of 'the same' is not the same thought over again, 243
Conceptual order different from perceptual, 243
Consciousness, stream of, Chapter XI, 151;
four characters in, 152;
personal, 152;
is in constant change, 152, 466;
same state of mind never occurs twice, 154;
consciousness is continuous, 157;
substantive and transitive states of, 160;
interested in one part of its object more than another, 170;
double consciousness, 206 ff.;
narrowness of field of, 217;
relations of to brain, 462
Consciousness and Movement, Chapter XXIII;
all consciousness is motor, 370
Concomitants, law of varying, 251
Consent, in willing, 452
Continuity of object of consciousness, 157
Contrast, 25, 44-5
Convergence of eyeballs, 31, 33
Convolutions, motor, 106
Corpora fimbriata, 86
Corpora quadrigemma, 79, 86, 89
Corpus albicans, 84
Corpus callosum, 81, 84
Corpus striatum, 81, 86, 108
Cortex, 11, note
Cortex, localization in, 104;
motor region of, 106
Corti's organ, 52
Cramming, 295
Crura of brain, 79, 84, 108
Curiosity, 407
Currents, in nerves, 10
Czermak, 70

Darwin, 388, 389
Deafness, mental, 113
Delage, 76
Deliberation, 448
Delusions of insane, 207
Dermal senses, 60 ff.
Determinism and psychology, 461
Decision, five types, 429
Differences, 24;
directly felt, 245;
not resolvable into composition, 245;
inferred, 248
Diffusion of movements, the law of, 371
Dimension, third, 342, 346
Discharge, nervous, 120
Discord, 58
Discrimination, Chapter XV, 59;
touch, 62;
defined, 244;
conditions which favor, 245;
sensation of difference, 246;
differences inferred, 248;
analysis of compound objects, 249;
to be easily singled out a quality should already be separately known, 250;
dissociation by varying concomitants, 251;
practice improves discrimination, 252;
of space, 338
See Difference
'Disparate' retinal points, 35
Dissection, of sheep's brain, 81
Distance, as seen, 39;
between members of series, 24;
in space, see Third dimension
Distraction, 218 ff.
Division of space, 338
Donaldson, 64
Double consciousness, 206 ff.
Double images, 36
Double personality, 205
Duality of brain, 205
Dumont, 135
Dura mater, 82
Duration, the primitive object in time-perception, 280;
our estimation of short, 281

Ear, 47 ff.
Effort, feeling of, 434;
feels like an original force, 442;
volitional effort is effort of attention, 450;
ethical importance of the phenomena of effort, 458
Ego, see Self
Embryological sketch, Chapter VII, 78
Emotion, Chapter XXIV;
compared with instincts, 373;
varieties of, innumerable, 374;
causes of varieties, 375, 381;
results from bodily expression, 375;
this view not materialistic, 380;
the subtler emotions, 384;
fear, 385;
genesis of reactions, 388
Emotional congruity, determines association, 264
Empirical self, see Self
Emulation, 406
End-organs, 10;
of touch, 60;
of temperature, 64;
of pressure, 60;
of pain, 67
Environment, 3
Essence of reason, always for subjective interest, 358
Essential characters, in reason, 354
Ethical importance of effort, 458
Exaggerated impulsion, causes an explosive will, 439
Exner, 123, 281
Experience, 218, 244
Explosive will, from defective inhibition, 437;
from exaggerated impulsion, 439
Expression, bodily, cause of emotions, 375
Extensity, primitive to all sensation, 335
Exteriority of objects, 15
External world, 15
Extirpation of higher nerve-centres, 95 ff.
Eye, its anatomy, 28-30

Familiarity, sense of, see Recognition
Fear, 385, 406, 407
Fechner, 21, 229
Feeling of effort, 434
Féré, 311
Ferrier, 132
Fissure of Rolando, seat of motor incitations, 106
Fissure of Sylvius, 108
Foramen of Monro, 88
Force, original, effort feels like, 442
Forgetting, 300
Fornix, 81, 86, 87, 89
Fovea centralis, 31
Franklin, 121
Franz, Dr., 308
Freedom of the will, 237
Free-will and attention, 237;
relates solely to effort of attention, 455;
insoluble on strictly psychologic grounds, 456;
ethical importance of the phenomena of effort, 458
Frequency, determines association, 264
"Fringes" of mental objects, 163 ff.
Frogs' lower centres, 95
Functions of the Brain, Chapter VIII, 91;
nervous functions, general idea of, 91
Fusion of mental states, 197, 245, 339
Fusion, of sensations, 23, 43, 57

Galton, 126, 265, 303, 306
Genius, 227, 327
Goethe, 146, 157
Goldscheider, 11, 64, 68
Goltz, 100
Guiteau, 185
Gurney, Edmund, 331, 334

Habit, Chapter X, 134 ff.;
has a physical basis, 134;
due to plasticity, 135;
due to pathways through nerve-centres, 136;
effects of, 138;
practical use of, 138;
depends on sensations not attended to, 141;
ethical and pedagogical importance of 142 ff.;
habit the ultimate cause of association, 256
Hagenauer, 386
Hall, Robert, 223
Hallucinations, 330 ff.
Hamilton, 260, 268
Harmony, 58
Hartley, 255
Hearing, 47 ff.;
centre of, in cortex, 113
Heat-sensations, 63 ff.;
nerves of, 64
Helmholtz, 26, 42, 43, 55, 56, 58, 121, 226, 227, 231, 233, 234, 321
Hemispheres, general notion of, 97;
chief seat of memory, 98;
effects of deprivation of, on frogs, 92;
on pigeons, 96
Herbart, 222, 326
Herbartian School, 157
Hering, 24, 26
Herzen, 123, 124
Hippocampi, 88
Hodgson, 262, 264, 280, 283
Holbrook, 297
Horsley, 107, 118
Hume, 161, 244
Hunger, sensations of, 69
Huxley, 143
Hypnotic conditions, 301