INDEX 
0 
Cameron, Mr., on mimetic insects 
in ants’ nest, 212 
Canaries’ nest, building of, 135 
Canon of interpretation, 270 
Capacity, innate, 176 
Capuchin monkey, imitation in, 
188, 278 
Carpenter, W.B., on water-beetle, 
299 
Catasetum, fertilization of, 29 
Cats, Prof. Thorndike’s experiments 
on, 147, 18+ , 
Causation, idea of, 257 
Cell-division in egg, 14 
Cerceris, instincts of, 74; locality 
studies of, 129 
Chalicodoma, parasites of, 78; 
Fabre’s observations on, 130 
Chick swimming, 85; instincts of, 
85 ff.; imitation in, 183 
Child-study, desirability of, 155, 
337 
Choice, apparent in Paramecia, 9 ; 
in the pairing situation, 266 
Ciliary action in Paramecium, 4-10 
Circular process (Baldwin), 181 
Clepsine, behaviour of, 159 
-Coalescence in conscious situation, 
46 
Coincident variations defined, 37 ; 
survival of, 115, 174 
Communities, social, of bees and 
ants, 205 
Companion as centre of special 
interest, 244 
Componotus, communities of, 210 
Conation and impulse, 187, 235 
Concept, nature of, 167 
Condensation of experience, 163 
Conduct implies motive, 60; and 
ideal, 278 
Congenital responses, 41 
Conjugation in Paramecium, 4 
Connate instincts, 66, 69 
Conscience, ambiguity of 
281 
Conscious accompaniments of cer- 
tain organic changes, 42; aspect 
of instructive behaviour, 99 
Consciousness, as accompaniment 
and as guide, 34; effective, de- 
word, 
339 
fined, 43; as heir to organic 
estate, 52; as epiphenomenon, 
306 
Consentience, 53, 62 
Consonance of biological 
psychological end, 286, 316 
Constancy of environment leads to 
stereotyped behaviour, 173 
Continuity in evolution, 324; three- 
fold aspect of, 329 
Control, the sign of effective con- 
sciousness, 43 
Co-ordinated acts,69, 100; inherited, 
94, 95 
Corporate behaviour, 14 
Courtship in animals, 259 
Coyness of female birds, 264 if. 
Cranial sense-organs, 301 
Crayfish, reflex action in, 298 
Creation, special, 297 
Criteria of effective consciousness, 
43; of intelligence, 120 
Cruelty in cat, 277 
Cuckoo, instinct of nestling, 90 
and 
D 
Darwiy, Charles, fig. of sun-dew 
leaf, 26; of Venus’s fly-trap, 27; 
of catasetum, 31; on earthworms, 
158; on social life of animals, 225: 
on human ancestry, 229; on 
play and practise, 259, on sexual 
selection, 262 ff.; on law of battle, 
313 
o 
_ Davis, Prof. Ainsworth, on limpets, 
156 
Dwan, Dr. Bashford, on chick swim- 
ming, 85 
Deceit in animals, 280 
Deferred instincts, 70 
Definiteness of instinctive be- 
haviour, 66 
Description, 
terms, 202 
Didunculus, changed habits in, 
221 
Ditterentiation and integration of 
nerve centres, 167 
Disintegration of instincts, 176 
Diving, instinctive, 86 
Dog, observations on, intelligence 
of, 141 ff., 152, 200, 271, 322 
involyes relational 
