udy, Difficulties of, 104.

Chopin, 52, 215.

Chorea, 101.

Cid, The, 140.

Classes of discoverers, 249.

Classification, 181.

Coleridge, 37.

Colored hearing, 38.

Columbus, Christopher, 89.

Commerce, Combative element in, 295.

Commercial imagination, Conditions of, 281;
development due to increasing substitution, 287;
development, Stages of, 285.

Common factor in comparison, 40.

Complementary scientists, 246.

Complete images impossible, 16.

Comte, 146.

Condillac, 243.

Confucius, 300.

Confusion of impressions, 18.

Conjecture, beginning of science, 245.

Conscious imagination, a special case, 58.

Constellation, 59, 126.

Constitutions by philosophers, 309.

Contiguity and resemblance, 24.

Contrapuntists, 214.

Contrast, Association by, 40.

Cooperation, 309;
of intellect and feeling, 43.

Copernicus, 246.

Counter-world, 304.

Creation hindered by complete redintegration, 22;
in physiological inhibition, 6;
Motor basis of, 258;
Physiological and imaginative, 76;
versus repetition, 5.

Creative imagination, a growth, 9;
Composite character of, 12;
conditioned by knowledge, 173;
either esthetic or practical, 44;
implies feeling, 32;
Neglect of, by writers on psychology, vii;
Reasons for, 313.

Creative instinct, non-existent, 42.

Crisis, not essential, 58.

Critical stage of investigation, 252.

Cromwell, 144.

Cumulative inventions, 272.

Curiosity, 99;
of primitive man, 45, 131.

Cuvier, 183.

Daedalus, 269.

Dante, 205.

Darwin, 117, 346.

Dauriac, 350.

Deduction, Process of, 283.

Deffant, Madame du, 48.

Deities, Coalescence of, 200;
Momentary, 199;
Multiplicity of Roman, 125.

Delboef, 342.

DeQuincy, 55.

Descartes, 73, 294.

Determinism, Neglect of, by idealists, 303;
of art, 278;
of invention, 264.

Dewey, John, 132 n.

_Dialectic_, Hegelian, 254.

Diffluent imagination, 196 ff.

_Dii minores_, 269.

Disinterestedness of the artist, 35.

Dissociation, 15, 268;
by concomitant variations, 21;
of series, 19.

Double personality, 325.

Dreams, 38;
Emotional persistence of, 324.

Drugs, Effect of, 55;
Use of, as excitants, 70.

Dualism of Fourier, 306.

Duerer, 145.

Egypt, 135.

Egyptian conception of causality, 260.

Emotion, and sensation, 38;
material for imagination, 33;
presupposes unsatisfied needs, 32;
Realization of, 80.

Emotional