INDEX 



815 



Cindus aquaticua, 687. 



Cingalese, Ghinege ophuon of the ap- 

 pearance of the, 744. 



Cirripeds, complemental males of, 275. 



CSvilization, efEects of, upon natural 

 selection, 180; influence of, in the 

 competition of nations, 243. 



Clanging of geese, etc., 478. 



Clapardde, E., on natural selection ap- 

 plied to man, 73. 



Clarke, on the marriage-customs of the 

 Kalmucks, 770. 



Classiflcation, 199. 



Claus, 0., on the sexes of Saphiiina, 

 357. 



Cleft- palate, Inherited, 68. 



Climacteris erythrops, sexes of, 618. 



Climate, 52; cool, favorable to human 

 progress, 179; power of supporting 

 extremes of, by man, 242; want of 

 connection of, with color, 255. 



Cloaca, existence of a, in the early pro- 

 genitors of man, 215. 



Gloacal passage existing in the human 

 embryo, 26. 



Clubs, used as weapons before disper- 

 sion of manldnd, 239. 



Clucking of fowls, 478. 



Clythra 4-punctata, stridulation of, 396. 



Coan, Mr. , and the Sandwich Islanders, 

 249. 



Cobbe, Miss, on morality in hypotheti- 

 cal bee-community, 137. 



Cobra, ingenuity of a, 458. 



Coccus, 197. 



Coccyx, 42; in the human embryo, 26; 

 convoluted body at the extremity of 

 the, 43 ; imbedded in the body, 85-86. 



Cochin-China, notions of beauty of the 

 inhabitants of, 744, 746. 



Cock, blind, fed by its companions, 

 141 ; game, killing a kite, 471 ; comb 

 and wattles of the, 620; preference 

 shown by the, for young hens, 542 ; 

 game, transparent zone in the hackles 

 of a, 565-556. 



Cock of the rock, 523. 



Cockatoos, 634-636, 637 ; nestling, 631 ; 

 black, immature plumage of, 602. 



Coelenterata, absence of secondary sex- 

 ual characters in, 344. 



Coffee, fondness of monkeys for, 23-24. 



Cold, supposed efEects of, 53 ; power of 

 supporting, by man, 242. 



Coleoptera, 385; stridulation of, 374; 

 stridulant organs of, discussed, 397. 



Colias edusa and hyale, 416. 



CoUingwood, 0., on the pugnacity of the 

 butterflies of Borneo, 402 ; on butter- 

 flies being attracted by a dead speci- 

 men of the same species, 414. 



Colobus, absence of the thumb, 76. 



Colombia, flattened heads of savages 

 of, 740. 



Colonists, success of the Knglish as, 

 191. 



Coloration, protective, in birds, 631. 



Color, supposed to be dependent on 

 light and heat, 63; correlation of, 

 with immunity from certain poisons 

 and parasites, 266; purpose of, in 

 lepidoptera, 412; relation of, to sex- 

 ual functions, in fishes, 446; differ- 

 ence of, in the sexes of snakes, 456- 

 457 ; sexual differences of, in lizards, 

 463; influence of, in the pairing of 

 birds of different species, 636 ; rela- 

 tion of, to nidifloation, 685, 587; 

 sexual differences of, in mammals, 

 689, 699; recognition of, by quad- 

 rupeds, 698 ; of children, in different 

 races of man, 717-718; of the skin 

 in man, 777. 



Colors, admired alike by man and ani- 

 mals, 128-129 ; bright, due to sexual 

 selection, 345; bright, among the 

 lower animals, 345-346 ; bright, pro- 

 tective to buttierflies and moths, 409; 

 bright, in male fishes, 437, 444; 

 iTansmission of, in birds, 577. 



Colquhoun, example of reasoning in a 

 retriever, 110-111. 



Columba passerina, young of, 602. 



Colymbus glaoialis, anomalous young 

 of, 622. 



Comb, development of, in fowls, 314. 



Combs and wattles in male birds, 620. 



Community, preservation of varialiona 

 useful to the, by natural selection, 91. 



CompositsB, gradation of species among 

 the, 233. 



Comte, C, on the expression of the 

 ideal of beauty by sculpture, 748. 



Conditions of life, action of changed, 

 upon man, 51 ; influence of, on plu- 

 mage of birds, 609. 



Condor, eyes and comb of the, 549. 



Conjugations, origin of, 127. 



Conscience, 155, 171; absence of, in 

 some criminals, 158. 



Constitution, difference of, in different 

 races of men, 224 e< aeq. 



