430 
FOX. 
INDEX. 
GALTON. 
racters by, i. 294 ; cuckoo- , i. 294 ; 
development of the comb in, i. 
295 ; numerical proportion of the 
sexes in, i. 306 ; courtship of, ii. 117 ; 
mongrel, between a black Spanish 
cock and different hens, ii. 131 ; 
pencilled Hamburgh, difference of 
the sexes in, ii. 158 ; Spanish, 
sexual differences of the comb in, 
ii. 158 ; spurred, in both sexes, ii. 
162. 
Fox, W. D. f on some half-tamed 
wild ducks becoming polygamous, 
and on polygamy in the guinea- 
fowl and canary-bird, i. 270 ; on 
the proportion of the sexes in cattle, 
i. 305; on the pugnacity of the 
peacock, ii. 46 ; on a nuptial assem- 
bly of magpies, ii. 102; on the 
finding of new mates by crows, ii. 
104; on partridges living in trip- 
lets, ii. 107 ; on the pairing of a 
goose with a Chinese gander, ii. 
il4. 
FoxElS, wariness of young, in hunting 
districts, i. 50 ; black, i'i. 294, 
France, numerical proportion of 
male and female births in, i. 301. 
Francesco, B., on the Simian resem- 
blances of man, i. 4. 
Fraser, C., on the different colours 
of the sexes in a species of Souilla . 
i. 335. 
Fringilla caunabina , ii. 86. 
F ri.u<ji.lla ciris , age of mature plumage 
in, ii. 213. 
Fringilla cyanen , age of mature plu- 
mage in, ii. 213. 
Fringilla leucophrys. young of, ii. 
217. 
Fringilla spinus , ii, 115. 
Fringilla tristis, change of colour in, 
in spring, ii. 85 ; young of, ii. 216. 
FeinOtILLI ire, resemblance of the 
females of distinct species of, ii. 
192. 
FROGS, ii. 25; mule, temporary recep- 
tacles for ova possessed by, i. 254 ; 
ready to breed before the females, 
i. 260; vocal organs of, ii. 28. 
Frontal bone, persistence of the 
suture in, i. 124. 
Fruits, poisonous, avoided by animals, 
i. 36. 
Fuegians, i. 167, 181; mental 
capacity of the, i. 34; quasi-reli- 
gious sentimeuts of the, i. 67 ; 
power of sight in the, i. 118 ; skill 
of, in stone-throwing, i. 188; re- 
sistance of the, to their severe cli- 
mate, i. 156, 237 ; difference of 
stature among the, i. 115; mode of 
life of the, i. 246 ; resemblance of, 
in mental characters, to Europeans, 
i. 232 ; aversion of, to hair on the 
face, ii. 848 ; said to admire 
European women, ii. 351. 
FuLGOftiDAi, songs of the, i. 351. 
Fur, whiteness of, in arctic animals, 
in winter, i. 282. 
Fur-bearing animals, acquired sa- 
gacity of, i. 50. 
G. 
Gallicrex , sexual difference in the 
colour of the irides in, ii. 128. 
Gallicrex cristatus , red caruncle 
occurring in the male during the 
breeding-season, ii. 80. 
Galltnaceas, frequency of poly- 
gamous habits and of sexual dif- 
ferences in the, i. 269 ; love- 
gestures of, ii. 68 ; decomposed 
leathers in, ii. 74; stripes of young, 
ii. 184; comparative sexual differ- 
ences between the species of, ii* 
192, 194; plumage of, ii. 195. 
Gallinaceous birds, weapons of the 
male, ii. 44; racket-shaped fea- 
thers on the heads of, ii. 73. 
Gallinula chloropus. pugnacity of 
male, ii. 40. 
Gallinula cristata , pugnacity of the 
male, ii. 41. 
GallopcrdiXy spurs of, ii, 46; de- 
velopment of spurs in the female, 
ii. 162. 
Gallqpliasis , young of, ii. 190. 
G alius bankiva , ii. 158 ; neck-hackles 
of, ii. 84. 
Gallus Stanleyi , pugnacity of the 
male, ii. 44. 
Galls, i. 152. 
Galton, Mr., on the struggle between 
the social and personal impulses, i- 
104 ; on hereditary genius, i. Hi 5 
on the effects of natural selection 
