agonistic cosmic
currents, 181, 250, 254
of motion, 310
and perception, 226-7

Originality of the willed order, 224

Orthogenesis, 69, 86-7

Oscillation between association and individuation, 259, 261.
_See_ Societies
of ether, 301-2
of instinct and intelligence about a mean position, 136
of pendulum, illustrating space and time in ancient philosophy,
318-9, 320
between representation of inner and outer reality, 279-80
of sensible reality in ancient philosophy about being, 316-8

Outlines of perception the plan of action, 5, 11, 12, 93, 188, 189, 204-5,
206-7, 226-7, 228-9, 230, 250, 299-300, 306

Oxygen, 114, 254, 255

Paleontology, 24-5, 129, 139

Paleozoic era, 102

Parallelism, psycho-physiological, 180, 350, 351, 355, 356

Paralyzing instinct in hymenoptera, 139-40, 146, 172, 174-5

Parasites, 106, 108, 109, 111-13, 134-5

Parasitism, 132

Passivity, 222-4

Past, subsistence of, in present, 4, 20-3, 26-7, 108, 199-202

Peckham, 173-4 _note_

Pecten, illustrating identical structures in divergent lines of
evolution, 62, 63, 75

Pedagogical and social nature of negation, 287-97

Pedagogy and the function of the intellect, 165

Penetration, reciprocal, 161-2.
_See_ Interpenetration

Perception and action, 4-5, 11, 12, 93, 188, 189, 206, 226-7, 228-9,
300-1, 306-7
and becoming, 176-7, 303-6
cinematographical character of, 206-7, 249, 251, 331-2
distinctness of, 226-7, 250
and geometry, 205, 230
in molluscs, 188
and organization, 226-7
prolonged in intellect, 161-2, 273
reaction in, 264
and recollection, 180, 181
refracts reality, 204, 238, 359-60
rhythm of, 299-300, 301
and science, 168

Permanence an illusion, 299-301

Peron, 80

Perrier, Ed., 260 _note_

Personality, absolute reality of, 269
concentration of, 201, 202
and matter, 269, 270
the object of intuition, 268
tension of, 199, 200, 201

Perthes, Boucher de, 137

Phaedrus, 156 _note_

Phagocytes and external finality, 42

Phagocytosis and growing old, 18

Phantom ideas and problems, 177, 277, 283, 296

Philosophical explanation contrasted with scientific explanation, 168

Philosophy and art, 176-7
and biology, 43-4, 194-6
and experience, 197-8
function of 29-30, 84-5, 93-4, 168, 173-4, 194-7, 198, 268, 269, 369-70
history of, 238
incompletely conscious of itself, 207-8, 209
individual mind in, 191
and intellect, ix-xv