Emotional expressions, 22.

Environment, 24.

Equivalents, kinesthetic, 20, 28, 38, 112.

Ethical sense, the, 90.

Evolution, theory of, vi, 24, 31, 33, 54, 202, 229.

Exaltation, sense, 153.

Exaltation of the faculties in hypnosis, 160.

Excitement, 21.

Experimental psychology, 4, 101, 122.

Experimenting with children, 6, 57, 61.

Expressions of emotions, 22.

Extirpation method, 102.

F.

Feeling, 10, 21.

Fluid attention, 182.

G.

Galvanometer experiment, 103.

Games, of animals, 42;
of children, 95;
value of, 50.

Generalization, 41, 181.

Genetic psychology, 2.

Genius, 208, 211.

Geometry, study of, 187, 188.

Grammar, study of, 187, 188, 197.

Guessing, 189, 198.

H.

Habit, 77, 80, 168, 192.

Hallucination, 12.

Heating, 10.

Heat and cold sensations, 10, 124.

Heredity, 32, 58, 75,95, 169, 177, 200, 204, 218.

Heredity, social, 200.

Hypnotic cures, 164.

Hypnotism, 17, 121, 148, 158.

I.

Idiocy, 205.

Illusions, 12;
optical, 132.

Imagination, 12, 17, 22, 214.

Imitation, 28, 38, 47, 53, 78, 80, 88, 91, 211;
persistent, 39.

Individual psychology, 5.

Inhibitory suggestion, 155, 170.

Insanity, 205.

Inspiration, 227.

Instinct, 17, 25;
lapsed intelligence theory, 31;
reflex theory, 30, 34;
theory of, 26.

Intelligence, 36, 214;
animal, 36.

Intoxication, 102, 104.

Introspection, 3, 8.

Invention, 211.

J.

Judgement, 133, 208, 220.

K.

Kinaesthetic equivalents, 20, 28, 38, 112.

Kindergarten, value of, 175.

Knowledge, 9, 13, 22.

L.

Laboratories, psychological, 132.

Language, study of, 183, 197.

Lapsed intelligence theory of instinct, 31.

Left-handedness, 53, 69.

Levels, of brain functions, 105.

Life, sensory and motor periods of, 167.

Localization of brain inactions, 102, 104.

M.

"Make-believe," in animals and children, 45.

Mathematics, study of, 187, 197.

Medulla, 105.

Memory, 11, 12, 18, 22, 76, 138, 150;
defects of, 118.

Mental pathology, 4, 101.

Mind cure, 120.

Mind, of animals, 1, 24;
relation of body to, 101.

Monkeys, instinct of, 26, 39.

Motives, 18.

Motor centres of brain, 111

Motor period, 167.

Motor suggestion, 17, 67, 80.

Muscle sensations, 10.

Musical expression, 76.

N.

Natural selection, 202.

O.

Optic thalami, 107.

Optical illusion, 132.

Organic selection, principle of, 34, 50.

Org