INDEX, 
Extinction of lower races, 318. 
FEMALE birds, colours of, 114; 
sometimes connected with their 
mode of nidification, 240; more 
exposed to enemies than the 
males, 248, 
Femaz butterflies generally dull- 
coloured, 259. 
Femaue insects, mimicry by, 110, 
259; colours of, 113. 
FeMate sex, has no incapacity for 
as brilliant colouration as the 
male, 247; in some groups re- 
quires more protection than the, 
male, 258. 
Fisues, protective colouring of, 55. 
Fissrrostrau birds, nests of, 238. 
Frowers, causes of colour in, 127. 
Frycatcuers, genera of, absent 
from Celebes, 177. 
Forsgs, Epwanrp, objections to his 
theory of Polarity, 17-23. 
Force is probably all Will-force, 
366. 
GALAPAGOS, 10. 
Gauron, Mr., on range of intellec- 
_ tual power, 339, 
GANOCEPHALA, 298, 
Gasiropacha querei, protective co- 
lour and form of, 62. 
Gaupry, M., on fossil mammals of 
Greece, 299. 
GzocraPHicaL distribution, de- 
pendent on geologic changes, 1; 
its agreement with law of in- 
troduction of new species, 9; 
of allied species and groups, 12. 
Gzoxoarcat distribution analogous 
to geographical, 13, 
377 
Geoxoey, facts proved by, 2-5. 
Grrarre, how it acquired its long 
neck, 42,0 
Guiza, autumnal colours of this 
‘genus, 62. 
Govutp, Mr., on sexual plumage of 
Gray Phalarope, 115; on incu- 
bation by male Dotterell, 115. 
Grallina australis, 254. 
Green birds almost confined to 
the tropics, 52. 
Gymnocerus cratosomoides, 94, 
Gymnocerous capucinus, 96. 
Gymnocerous dulcissimus, 97. 
Guyruer, Dr., on arboreal snakes, 
55 ; on colouring of snakes, 102. 
Gynecia dirce, 59. 
HABITS, often persistent when 
use of them has ceased, 234; of 
children and savages analogous 
to those of animals, 235; if 
persistent and imitative may be 
termed hereditary, 235, 236. 
Harry covering of Mammalia, use 
of, 344; absence of, in man re- 
_markable, 345; the want of it 
felt. by savages, 346; could not 
have been abolished by natural 
selection, 348. 
Harpagus diodon, 107. 
Hearuvs, a bard genus of Cur- 
culionide, 94. 
Hexiconip2, the objects of mimi- 
cry, 77; their secretions, 88; 
not attack:d by birds, 79; some- 
times mimicked by other Heli- 
conide, 85. 
Heviapotnerrum, 300, 
Hemirrera, protected by bad 
odour, 72. 
