718 INDEX. 



Apathus, difference of the sexes in, 331. 



Apatura Iris, 348, 350. 



Apes, difference of the young, from the adult, 9; semi-erect atti- 

 tude of some, 58; mastoid processes of, 59; influences of the jaw- 

 muscles on the physiognomy of, 60; female, destitute of large 

 canines, 71; building platforms, 93; imitative faculties of, 146; 

 anthropomorphous, 175; probable speedy extermination of the, 177; 

 Gratiolet on the evolution of, 202; canine teeth of male, 572; 

 females of some, less hairy beneath than the males, 686; long- 

 armed, their mode of progression, 58. 



Aphasia, Dr. Bateman on, 100. 



Apis mdlifica, large male of, 316. 



Apollo, Greek statues of, 663. 



Apoplexy in Cebus Azarce, 7. 



Appendages, anal, of insects, 313. 



Approbation, influence of the love of, 124, 132, 148. 



Aprosmictus scnpulatus, 521. 



Apus, proportion of sexes, 287. 



Aquatic birds, frequency of white plumage in, 561. 



Aquila chrynaetoit, 463. 



Arab women, elaborate and peculiar coiffure of, 666. 



Arabs, fertility of crosses with other races, 195; gashing of cheeks 

 and temples among the, 655. 



Arachnida, 307. 



Arakhan, artificial widening of the forehead by the natives 

 of, 665. 



Arboricola, young of, 233. 



Arc.Ucopteryx, 180. 



Arctiidae, coloration of the, 356. 



Ardea aslia, rufescens and ccerulea, change of color in, 562, 563; 

 ardea ccerulea, breeding in immature plumage, 552; ardea cjularis, 

 change of plumage in, 563; ardea herodias, love-gestures of the male, 

 431; ardea ludomciana, age of mature plumage in, 551; continued 

 growth of crest and plumes in the male of, 552; ardea nycticorax, 

 cries of, 417. 



Ardeola, young of, 534. 



Ardetta, changes of plumage in, 524. 



Argenteuil, 24. 



Argus pheasant, 435, 457, 526; display of plumage by the male, 

 451; ocellated spots of the, 488; gradation of characters in the, 494. 



Argyll, Duke of, on the physical weakness of man, 71; the fash- 

 ioning of implements peculiar to man, 92; on the contest in man 

 between right and wrong, 141; on the primitive civilization of man, 

 162; on the plumage of the male Argus pheasant, 451; on Urosticte 

 Benjamini, 503; on the nests of birds, 515. 



Argynnis, coloring of the lower surface of, 356. 



Ancoris epitus, sexual differences in the wings of, 314. 



Aristocracy, increased beauty of the, 669. 



Arms, proportions of, in soldiers and sailors, 36; direction of the 

 hair on the, 177; and hands, free use of, indirectly correlated with 

 diminution of canines, 60. 



Arrest of development, 40, 41. 



Arrow-heads, stone, general resemblance of, 203. 



