CHAPTER XX.

PERCEPTION 312

Perception and sensation compared, 312. The perceptive state of mind is not a compound, 313. Perception is of definite things, 316. Illusions, 317. First type: inference of the more usual object, 318. Second type: inference of the object of which our mind is full, 321. 'Apperception,' 326. Genius and old-fogyism, 327. The physiological process in perception, 329. Hallucinations, 330.