Chapter XXV

; emotions compared with, 373; definition of, 391; every instinct is an impulse, 392; not always blind or invariable, 395; modified by experience, 396; two principles of non-uniformity, 398; man has more than beasts, 398, 406; transitory, 402; of children, 406; fear, 407

Intellect, part played by, in space-perception, 349

Intensity of sensations, 16

Interest, selects certain objects and determines thoughts 170; influence in association, 262

Introspection, 118

JANET, 211, 212, 301

JACKSON, HUGHLINGS, 105, 117

Joints, their sensibility, 74

KADINSKY, 330

Knowledge, theory of, 2, 464, 467; two kinds of, 14

KÖNIG, 46

KRISHABER, 208

Labyrinth, 47, 49-52

LANGE, K., 329

Laws, cerebral, of association, 255

Law, Weber's, 17; --, Fechner's 21; --, of relativity, 24

LAZARUS, 300, 323

Lenticular nucleus, 81

LEWES, 11, 232, 326

Likeness, 243, 364

LINDSAY, Dr., 413

Localization of Functions in the hemispheres, 104 ff.

Localization, Skin, 61

Locations, in environment, 340; serial order of, 341

LOCKE, 244, 302, 357

LOCKEAN SCHOOL, 157

Locomotion, instinct of, 406

LOMBARD, 131

Longituditional fissure, 84

LOTZE, 175

Love, 407

Lower Centres, of frogs and pigeons, 95 ff.

LUDWIG, 130

MACH, 75

Mamillary bodies, 84

Man's intellectual distinction from brutes, 367

MANTEGAZZA, 390

MARTIN, 40, 44, 45, 49, 52, 53, 60, 61, 65, 69

MARTINEAU, 251

Materialism and emotion, 380

MATTEUCI, 120

MAUDSLEY, 138

Measurement, of sensations, 22; of space, 342

'Mediumships,' 212

Medulla oblongata, 84, 108

Memory,