INDEX. 



FRINQILLID^G. 



043 



f'nhes, kidneys of, represented by 

 Corpora Wolffiana in the human 

 embryo, 11; male, hatching ova 

 in their mouths, 163 ; receptacles 

 for ova possessed by, 208 ; relative 

 size of the sexes in, 335 ; fresh- 

 water, of the tropics, 343 ; protec- 

 tive resemblances in, 344 ; change 

 of colour in, 344 ; nest-building, 

 345 ; spawning of, 345 ; sounds 

 produced by, 347, 566 ; continued 

 growth of, 485. 

 Hamingo, age of mature plumage, 



483. 

 Flexor poUids longus^ similar variation 



of, in man, 42. 

 Flint tools, 145. 

 Flints, difficulty of chipping into 



form, 49. 

 Floresuga mellivora, 443. 

 Florida, Qitiscalus major in, 248. 

 Flounder, coloration of the, 344 

 Flower, W. H., on the abductor of 

 the ilftb metatarsal in apes, 42 ; 

 on the position of the Seals, 150 ; 

 on the Pithecia monachus, 201 ; 

 on the throat-pouch of th« male 

 bustard, 373. 

 Fly-catchers, colours and nidification 



of, 456. 

 Foetus, human, woolly covering of 

 the, 19; arrangement of the hair 

 on, 152. 

 Food, influence of, upon stature, 31. 

 Koot, prehensile power of the, re- 

 tained in some savages, '52 ; pre- 

 hensile, in the eai-ly progenitors of 

 man, 160. 

 Foramen, supra -condyloid, excep- 

 tional occurrence of in the humerus 

 of man, 21, 43 ; in the early pro- 

 genitors of man, 160. 

 Forbes, D., on the Aymara Indians, 

 34; on local variation of colour 

 in the Quichuas, 196; on the hair- 

 lessness of the Aymaras and Qui- 

 chuas, 561; on the long hair of 

 the Aymaras a:id Quichuas, 559, 

 680. 

 Forel, F., on white young swans, 



282. 

 For-mica rufa, size of the cerebral 



ganglia in, 54. 

 dossils, absence of, connecting man 

 with the apes, 166. 



Fowl, occurrence of spurs in the 

 female, 227 ; game, early pugnacity 

 of, 239 ; Polish, early development 

 of cranial peculiarities of, 239 ; 

 variations in plumage of, 385 ; ex- 

 amples of correlated development 

 in the, 426 ; domestic, breeds and 

 subbreeds of, 460. 



Fowls, spangled Hamburgh, 229, 238 ; 

 inheritance of changes of plumage 

 by, 229 ; sexual peculiarities in, 

 transmitted only to the same sex, 

 230 ; loss of secondary sexual cha- 

 racters by male, 231 ; Polish, origin 

 of the crest in, 231'; period of in- 

 heritance of characters by, 238 ; 

 cuckoo-, 238 ; development of the 

 comb in, 239 ; numerical propor- 

 tion of the sexes in, 247 ; courtship 

 of, 417 ; mongrel, between a black 

 Spanish cock and difi'erent hens, 

 427; pencilled JElamburgh, differ- 

 ence of the sexes in, 447 ; Spanish, 

 sexual differences of the comb in, 

 447 ; spurred, in both sexes, 449. 



Fox, W. D.J on some halt'-tamed wild 

 ducks becoming polygamous, and 

 on polygamy in the guinea-fowl and 

 canary-bird, 220 ; ou th« proportion 

 of the sexes in cattle, 247 ; ou the 

 pugnacity of the peacock, 364 ; on 

 a nuptial assembly of magpies, 

 406 ; on the finding of new mates 

 by crows, 407 ; on partridges living 

 in triplets, 409 ; on the pairing of a 

 goose with a Chinese gander, 415. 



Foxes, wariness of young, in hun'.ing 

 districts, 80; black, 540. 



Fraser, C, on the different colours of 

 the sexes in a species of Squilla^ 

 271. 



, G., colours of T/iech, 312, 



Frere, Hookham, quoting Theognis on 

 selection in mankind, 29. 



Frmgiila oanna'nn'i, 394. 



aVis, age of mature plumage in 



483. 



cynnea, age of mature plumage 



in, 483.' 



leucophrys, young of, 486. 



spinus, 415. 



tristis, change of colour in, in 



spring, 393; young of, 485. 



FringilUdae, rsstmblance of the fe 

 males of distinct species of. 470 



