ure, 137, 138

Humanity in evolution, 134, 137-9, 142, 147, 158, 181, 184, 185, 264-71.
_See_ Culminating points, etc.
goal of evolution, 266, 267

Huxley, 38

Hydra and individuality, 13

[Greek: Hyle] of Aristotle, 353

Hymenoptera, the culmination of arthropod and instinctive evolution,
134, 173-4
as entomologists, 146, 172-3
organization and instinct in, 140
paralyzing instinct of, 146, 172, 173-4
social instincts of, 101, 171

Hypostasis of the unity of nature, God as, 196-7, 322, 356

Hypothetical propositions characteristic of intellectual knowledge, 149-50

Idea or form in ancient philosophy, 49, 314, 316-7, 318, 329-30
in ancient philosophy, [Greek: eidos], 314-5
in ancient philosophy, Platonic, 48
and image in Descartes, 280

Idealism, 232

Idealists and realists alike assume the possibility of an absence of
order, 220, 232

Identical structures in divergent lines of evolution, 55, 60-1, 62, 69,
74-7, 86, 119

Illumination of action the function of perception, 5, 206, 307

Image and idea in Descartes, 280
distinguished from concept, 160-1, 280

Imitation of being in Greek philosophy, 324, 327
of instinct by science, 168-9, 173-4
of life in intellectual representation, 4, 33, 88-9, 101, 176, 208,
209, 213, 226, 259, 341, 365
of life by the unorganized, 33, 35, 36
of motion by intelligence, 305, 307-8, 312, 313, 329.
_See_ Imitation of the real, etc.
of the physical order by the vital, 230
of the real by intelligence, 258, 270, 307

Immobility of extension, 155
and plants, 108-13, 118, 119, 130
of primitive and torpid animals, 130-1
relative and apparent; mobility real, 155

Impatience, duration as, 10, 339-40

Impelling cause, 73

Impetus, vital, divergence of, 26-7, 51-5, 97-105, 110, 118-9, 126-7,
131, 134-6, 257, 258, 266, 270
vital, limitedness of, 126, 141, 148-9, 254
vital, loaded with matter, 239
vital, as necessity for creation, 252, 261
vital, transmission of, through organisms, 25, 27, 79, 85, 87, 88,
230, 231, 250, 251
vital, _See_ Impulse of life

Implement, the animal, is natural: the human, artificial, 139-43
artificial, 137-40, 150-1
constructing, function of intelligence, 159, 182-3
life known to intelligence only as, 162
matter known to intelligence only as, 161, 198
natural, 141, 145, 150
organized, 141, 145, 150
unorganized, 137-9, 141, 150-1

Implicit knowledge, 14