744 INDEX. 



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

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

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

 cock, 413; on a nuptial assembly of magpies, 461 ; on the finding of 

 new mates by crows, 463, on partridges living in triplets, 465; on the 

 pairing of a goose with a Chinese gander, 471. 



Foxes, wariness of young, in hunting districts, 90; black. 616. 



Fraser, C, on the diiferent colors of the sexes in a species of 

 SquUla, 306, Fraser, G., colors of lyiecla, 353. 



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



Fringilla canabina, 447, fHngiUa ciris, age of mature plumage in, 

 551; fringilla cyanea, age of mature plumage in, 551 ; fnngilla 

 leucophrys, young of, 553; fiingilla spinus, 472; fringilla tnatis, 

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



Fringillidae, resemblance of the females of distinct species of, 535. 



Frog, bright colored and distasteful to birds, 396. 



Frogs, 395; 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 stature among the, 35; power of 

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

 to their severe climate, 71, 207, mental capacity of the, 73; quasi- 

 religious sentiments 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, 664. 



Fulgoridae, songs of the, 319. 



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



Fur-bearing animals, acquired sagacity of, 90. 



Gallicrex, sexual difference in the color of the irides in, 483; galli- 

 crex ciistatiis, pugnacity of male, 409; red caruncle occurring in the 

 male during the breeding-season, 442. 



Uallinaceae, 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. 



Oallinula cJUoi'pus, pugnacity of the male, 409. 



Galloperdix, spurs of, 413; development of spurs in the female, 

 512. 



OaUopham, young of, 533. 



Galls. 68. 



'Gallus hankiva, neck-hackles of, 445; gaUus stanleyi, pugnacity of 

 the male, 412. 



Galton, Mr., on hereditary 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 Greeks, 159; on the Middle Ages, 160; on 

 the progress of the U. S., 161; on S. African notions of beauty, 661. 



