INDEX 



467 



Monkeys (cont. ) 



Rhesus, Jimmy, double movements, 



238 

 ,, ,, reaching with stick, 



275 



>, "smg rope, 276 



tied rope, 279 



,, ,, ,, bolt fastened 



by hook, 

 280 



,, ,, working stick with- 



in tube, 284 



,, ,, using stool, 284-287 



,, ,, removing obstacle 



from chain, 288 



,, ,, unwinding chain, 



289-292 

 ,, ,, attempting theft, 



293 

 Morality, animal, 314 



standardising of, 346, 352, 



353, 354 



,, average, 380 et seq. 

 ,, of Greece and Rome, 384 



higher, 389 

 ,, "natural," 389 

 Moral Impulses, development of, into 



moral will, 351 

 Moral Standards and practical needs, 



386 



Mulhall, M. ., 426 

 Mtiller, Fritz, 96 

 Mutter and Schumann % 158 

 Miiller, K., and O., 267 



N 



Natural Selection as factor in Evolu- 

 tion, 2 

 influence on reflex 



action, 52 



,, ,, and birth rate, 426 



>, ,, in human life, 430, 



43 1 } 433 

 Nest-building among birds, 68, 92, 308, 



425 

 ,, ,, fish and reptiles, 



313, 425 

 ,, ,, hymenoptera, 90 



et seq. 



Newsholme, A., 426 

 Normal process of learning in animals, 

 239 



Objects, knowledge of, 158, 166 



,, as centres of relations, 167, 

 258 



Objects, concrete, knowledge of, Ch. XI 

 Organic development, lines of, 414 

 Organised and unorganised behaviour, 



6, 7 



Organised life, resting on mutual inter- 

 dependence, 428 



Organism, the, adaptability of, Ch. Ill 

 ,, ,, equilibrium of, 26, 30, 



35 



,, ,, regeneration in, 26-29 



,, ,, identity of, 24, 30, 33, 



,, ,, highest, nature of, 414- 



418 



Otter, character of, 200 

 ,, using pull-bolt, 200 

 catch, 204-206 



Paramoecium, 58, 59 



Parental care among animals, 313, 314 



Parrot, using words with intention, 324 



Pearson, Prof. Karl, 426, 428 



Pechuel-Losche, E., 274 



Peckham, Mr. and Mrs., 77, 90-95 



Perception of objects in their relation, 



33 



,, ,, Results, learning by, 303 

 Perceptual learning, 230-232, 236 



,, relation, 168 

 Ptre Z , B.,266 



Personality, conception of, 339, 369 

 Philosophic movement of thought, fac- 

 tors of, 371 



Philosophy and Science, 371 

 ideal of, 371-373 

 ,, views of function of, 372 

 Piato, 368, 384, 433 

 Ploss, Dr. H., 427 

 Polyp and snail, 140 

 Polypes, individuality of, 415 

 Preyer, W., 38, 4 7, 48, 5', 53, 68, 85, 



1 10, 128, 325, 328, 329 

 Primary retentiveness, 1 1 1 

 Protista, survival of, 4 



reflex action among, 41 

 Protoplasm, excitability of, 55 

 Protozoa, adaptability among, 22, 109 

 ,, regeneration among, 27, 28 

 ,, reflex action among, 41 

 ,, modification by experience, 



"3, HI 



,, high fertility of, 421 

 Psychology, connection with Logic and 



Metaphysics, 370 

 Purpose, 20, 160-164 



and knowledge of relation, 

 164 



