388 MENTAL EVOLUTION IN ANIMALS. 



Cephalopoda, intelligence of related to organs of touch, 57 ; eyes of, 88 ; 



ears of, 89 ; tactile organs of, 89 ; colour-sense in, 98 ; memory in, 122 ; 



imagination in, 145 ; grade of mental evolution of, 349-50. 

 Cerebrum, functions of the, 34-46. 

 Chalicodoma, instincts of, 166. 

 Character, individual. See Disposition. 

 Chelmon rostratus, 89. 



Cheselden, on a case of couching for cataract, 322-3. 

 Chickens. See Birds. 



Choice, as criterion of mind, 17-20; physiological aspect of, 47-55. 

 Clifford, Professor, on ejects, 16. 

 Cobb, Miss, on inheritance of handwriting, 194. 

 Caelenterata, consciousness in, 76, 348 ; special sense of, 83-4 ; emotions of, 



342 ; grade of mental evolution of, 348. 

 Collett, R., on migration of the lemming, 283-5. 

 Colour-sense, 98-104. 

 Comparative Psychology in relation to comparative anatomy, 5 ; objects of, as 



a science, 6-7. 

 Comte, on Fetishism in animals, 154. 

 Conceptualism, 145. 

 Conductility, 68. 

 Conscience, evolution of, 352. 

 Consciousness as the distinctive character of mind, 17 ; evolution of, 70-77 ; 



definition of impossible, 72 ; degrees of, 72 ; time relations of, 73 ; 



possibly developed to supply conditions of feeling pleasure and pain, 111. 

 Conte, Le, on cattle sucking bones, 247. 

 Couch, on mistaken instinct of a bee, 167-8; on variations in the instinct of 



incubation, 182; on a dog learning how to attack a badger, 221; on a 



goldfinch singing instinctively, 222 ; on birds learning and forgetting the 



songs of other birds, 223 ; on tho instinct of feigning death, 303-8, 



315. 

 Coues, Captain Elliot, on local variations of instinct in birds, 210, 246-7. 

 Crab, olfactory organs of, 87-8 ; experiments in psychology of the Hermit, 



122-3; migration of the Land, 146, 285; feigning death, 305; reason 



in the, 336, 350. 

 Crayfish, kataplexy of the, 30S. 

 Crex, aquatic habits of the, 253. 

 Cripps, on an elephant feigning death, 305. 

 Crocodile, alleged dreaming in the, 149 ; divers dispositions in families of the, 



188. 

 Crossing, effects of, in blending instincts, 198-9. 

 Crotch, on migration of the lemming, 282-5. 

 Cruelty in animals, 541, 345. 

 Crustacea, special senses of, 84, 87 ; colour-sense of, 98-9 ; memory of, 122 



imagination of, 145-6; grade of mental evolution of, 349-50. 

 Cuckoo, mistaken instincts of the, 168 ; parasitic and non-parasitic habits or 



the, 251-2 ; parallelism of instincts of the, with those of Molothrus, 



273-4; migration of the young, 289. 

 Cuculii/a. See Cuckoo. 

 Curlew, sense of hearing in the, 92. 

 Curiosity in animals, 279-80, 341, 344. 

 Cuttle-fish. See Cephalopoda. 

 Cuvier, on birds dreaming, 149. 

 Cuvier, F., on attachment of a dog to a lion, 184. 



