ysticism by suggestion, 229.

Myth, defined, 123;
Depersonification of, 133;
in Plato, 134;
in science, 134;
Subjective and objective factors in, 122.

Myths, Significance of, 119;
Variations in, 127.

Myth-making activity, viii, 331.

Napoleon, 10, 66, 71, 142;
his war practice, 298.

Natural, and human phenomena, 299;
law, Uniformity of, opposed to dissociation, 21;
motors, Use of, 275.

Naville, 245.

Need of knowing, 314.

Neglect of details in sensation, 20.

Nerval, Gerard de, 229, 324.

Nervous overflow, 71.

New Larnak, 309.

Newbold, 340.

Newcomen, 270.

Newton, 58, 87, 146.

Nietzsche, 150.

_Nomina Numina_, 120, 262.

Nordau, 142.

Numerical imagination, 207 ff.;
mysticism, 226;
series unlimited, 207.

Objective study of inventors, 71.

Oddities of inventors, 72.

Oelzelt-Newin, 33, 95.

Old age, Effect of, on imagination, 77.

Organic conditions, 65.

Orientation conditioned by individual organization, 48;
Personal, 270.

Owen, Robert, 309.

Paradox of belief, 242.

Paralysis by ideas, 6.

Pascal, 146, 244.

Pasteur, 142, 143, 251.

Pathological view of genius, 141.

Pathology and physiology, 74.

Perception, 15;
and conception, 184;
and imagination, 106.

Perez, B., 115.

Persistence of ideas due to feeling, 79.

Personification, 186;
characteristic of aborigines and children, 27;
source of myth, 28.

Phalanges, Organization of society into, 305.

Philippe, J., 17 n.

Philosophy, a transformation of mystic ideas, 233.

Phlogiston, 248.

Physiological states, 70.

Physiology and pathology, 74.

Plastic art and mythology, 191;
imagination, 184 f.

Plato, 134, 303, 309.

Platonic ideas, 81, 253.

Play, 47, 97;
Uses of, for man, 114.

Plotinus, 234.

Poe, 39, 206, 324.

Poet, a workman, 190.

Poetical imagination, general characters, 267;
Inspiration in, 268;
special characters, 270.

Poetical invention, Stages of, 266.

Polyideism, 87.

Polynomy, 120.

Poncelet, 143.

Positive minds, 318.

Powers of nature, Exploitation of 271.

Practical imagination, Ubiquity of, 254.

Practice, essential in motor creation, 186.

Precocity, 144;
in poetry, 145;
of mathematicians, 147.

Pre-Raphaelites, 204.

Preyer, 117.

Primitive man, 45;
and myth, 118 ff.

Principle of unity, 250.

Progressive stages of imagination, 84.

Prometheus, 269.

Provoked revival, 94.