744 INDEX. 



Fox, W. D., on some half -tamed wild ducks becoming: polygamous 

 and on polygamy in the guinea-fowl and canary-bird, 249 ; n the 

 proportion of the sexes in cattle, 280 ; on the pugnacity of the pea- 

 cock. 413, on a nuptial assembly of magpies, 401 . on the finding of 

 new mates by crows, 463, on partridges living in triplets, 46."); on the 

 pairing of a goose with a C'iiinese gander. 471. 



Foxes, wariness of young, in hunting districts, 90, black. GIG. 



Fraser. ('., on the different colors of the sexes in a species of 

 Sqi;ill<t, 306. Fraser, (i., colors of Thechi, 353. 



Frere, Ilookhain, quoting Theognis on selection in mankind, 33. 



FniKjdln cnmihiiui. 447. friHfftua ciris, age of mature plumage in, 

 5iil, Jrinyilln cy<inc, age of mature plumage in, 551 ; frinyilltt 

 leucophryx. young of, 553; jrinyilla spin us 472; jnnyilla trial is, 

 change of color in, in spring, 446; young of, 553 



Frmgillid.e, resemblance of the females of distinct species of, 535. 



Frogi bright colored and distasteful to birds. 396. 



Frogs, 335, male, temporary receptacles for ova possessed by, 235; 

 ready to breed before the females, 240, fighing of, 396; vocal organs 

 of, 397. 



Frontal bone, persistance of the suture in, 44. 



Fruits, poisonous, avoided by animals, 75. 



Fuegians, 150, 163, difference of istatuie r.irong the, 35; power of 

 sight in the. 38, skill of, in stone throwing, 55. resistance of the, 

 t. their severe climate, 71, 207. mental capacity of the, 73, quasi- 

 religious SHiuiments of the, 107; resemblance of, in mental charac 

 ters. to Europeans, 203, mode of life of the, 224; aversion of, to hair 

 on the face, 662; said to admire European women, 064. 



Fulgoridte. songs of the. 319. 



Fur. whiteness of, in arctic animals in winter. 260. 



Fur-bearing animals, acquired sagacity of, 0. 



GnUicrt'.v. sexual differei ce in the color of the irides in, 483; rjnlli- 

 r.rc.r crifttnt-ux, pugnacity of male, 409, red caruncle occurring in the 

 ma'e during the breeding-season. 442. 



(ialliuaceu'. frequency of polygamous habits and of sexual differ- 

 ences in the. 248, love gestures of, 432; decomposed feathers in, 437: 

 stripes of young, 529. comparative sexual differences between the 

 species of, 536 plumage of. 537. 



Gallinaceous birds, weapons of the male, 412; racket shaped feath- 

 ers on the heads of, 436. 



Cnll.inuln chlvrpiix, pugnacity of tlie male, 409. 



(jfifllopc'i'dLv, spurs of, 413; development of spurs in the female, 

 512. 



Gtillopliftxis, young of, 533. 



(i alls, 68. 



Cidliin bankicn, neck-hackles of, 445; gallus stanlcyi, pugnacity of 

 tlie male, 412. 



Gallon, Mr., on liereditary genius, 31; gregariousness and inde- 

 pendence in animals, 118: on the struggle between the social and 

 personal impulses, 141; on the effects of natural selection on civilized 

 nations, 151; on the sterility of sole daughters, 153; on the degree 

 of fertility of people of genius, 154; on the early marriages of the 

 poor, 156; on the ancient (i reeks, 159; on the Middle Ages, 160; on 

 tlie progress of the U. IS., 161; on S. African notions oi beauty, 601, 



