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299. Emotions of Self, 305. Rivalry and conflict of one's different selves, 309. Their hierarchy, 313. What Self we love in 'Self-love,' 317. The Pure Ego, 339. The verifiable ground of the sense of personal identity, 832. The passing Thought is the only Thinker which Psychology requires, 338. Theories of Self-consciousness: 1) The theory of the Soul, 342. 2) The Associationist theory, 350. 3) The Transcendentalist theory, 360. The mutations of the Self, 373. Insane delusions, 375. Alternating selves, 379. Mediumships or possessions, 393. Summary, 400.

Its neglect by English psychologists, 402. Description of it, 404. To how many things can we attend at once? 405. Wundt's experiments on displacement of date of impressions simultaneously attended to, 410. Personal equation, 413. The varieties of attention, 416. Passive attention, 418. Voluntary attention, 420. Attention's effects on sensation, 425;—on discrimination, 426;—on recollection, 427;—on reaction-time, 427. The neural process in attention: 1) Accommodation of sense-organ, 434. 2) Preperception, 438. Is voluntary attention a resultant or a force? 447. The effort to attend can be conceived as a resultant, 450. Conclusion, 458. Acquired Inattention, 455.

The sense of sameness, 459. Conception defined, 461. Conceptions are unchangeable, 464. Abstract ideas, 468. Universals, 473. The conception 'of the same' is not the 'same state' of mind, 480.

Locke on discrimination, 483. Martineau ditto, 484. Simultaneous sensations originally fuse into one object, 488. The principle of mediate comparison, 489. Not all differences are differences of composition, 490. The conditions of discrimination, 494. The sensation of difference, 495. The transcendentalist theory of the perception of differences uncalled for, 498. The process of analysis, 502. The process of abstraction, 505. The improvement of discrimination by practice, 508. Its two causes, 510. Practical interests limit our discrimination, 515. Reaction-time after discrimination, 528. The perception of likeness, 528. The magnitude of differences, 530. The measurement of