684 



INDEX 



Persistence in spite of change, 86 



of characters, 495 



or organisms, 90 

 Personality, 5, 230 



transcending organism, 599 

 Pervasive beauty of animate na- 

 ture, significance of, 287 

 Pettigrew, Prof., 471 

 Petrovitch, Prof. Ivan, 621 

 Philanthus, 588 

 Philosophical interpretation of 



Nature, 34, 35 



Philosophy of the As If, 261, 262 

 Philosophy, science and, 31 

 Phylogeny, 378, 488, 489, 492, (of 



man ) , 546 



" Physical order," 50 

 Physiological registration of ex- 

 perience, 182 



state influencing action, 191 

 Pittdown skull, 548 

 Pithecanthropus, 547 

 Planaria, 19 



Planarian, rejuvenescence in, 422 

 Planck, Prof. Max, 23 

 Plants, divergence of green, 389 



evolution of, 390 

 Plasticity of animals, 55 



of instinct, 205 

 Plastosomes, 127 

 Plato, 361, 614 

 Play, 621 



of animals, 464 

 Play of Animals, 461 

 Plesiosaurs, 575 

 Poincare, 3 



Pollen-basket of bee, 60 

 Poynting, Prof. J. H., 9, 245, 256 

 Poulton, Prof., 444 

 Pre-awareness, 532 

 Preconditions of behaviour, 176 

 Pressures, 16 

 Preyer, Prof., 196 

 Primate stem, 556 



stock, 361 



Primordial organisms, 389 

 Principles of Physiology, 112 

 Pringle Pattison, Prof. A., 17, 18, 



38, 262, 367, 378 

 Probability, law of, 153 

 Procession caterpillars, 201 

 Productivity of animals, 53 

 Promise, 643-644 

 Prospective significance, 333 

 Proteids, metabolism of, 83 

 Proteins, 110 



Protoplasm, 111 

 Protoplasmic inertia, 96 

 Protozoa, cell-division in, 93 

 Protozoa and natural death, 591 

 Prouho, 196 

 Psychoid, 245 



Psychology, autonomy of, 36 

 Psychological categories, 254 

 Psychology experimental, 179 

 Psycho-physical individuality, 169 



life, 247 

 Psychosis, 247 



Psychoses and neuroses, 236 

 Ptarmigan and high altitudes, 60 

 Pterodactyls, 575 

 Punnett, Prof., 418, 447, 611 

 ' Pure lines," 453 

 " Pure perception," 31 

 Purpose, 642, 643 

 Purpose in the inorganic domain, 



330 



Purposiveness of Nature, 14 

 Purposiveness, adaptivenees and, 



and, 319-347 

 instinctive, 338 

 organic, 340 



Purposefulness, perceptual, 338 

 Purposelikeness and adaptation, 



341 

 Pycraft, W. P., 461, 465 



Race, the individual and the, 477 

 Radium, 357, 477 

 Rankine, 10 



Rat, black and brown, 298, 299 

 Rat, fertility of, 53 

 Rational conduct, 217, 515 

 Reactions varying in different in- 

 dividuals, 190, 191 

 " Reality " of tho " atom," 1 1 

 The Neio Realism, 168 

 Realms of Ends, 617 

 Recapitulation doctrine, 488 

 Regenerative capacity, 632 

 Reflex action, 186, 512 



responses, 188 



theory of instinctive behaviour, 



204 

 Reflexes and tropisms, 6 



combination of, 187 



control of, 523 , 



succession of tentative, 190 

 Registration, 189 

 Reichert and Brown, 485 

 Reighard, 448 

 Relation with nature, 33 



