414 
BOAK. 
INDEX. 
BOWS. 
genus Ardetta^ ii. 179 ; on the pere- 
grine falcon, ii. 180 ; on young 
female birds acquiring male cha- 
racters, ii. 180 ; on the immature 
plumage of birds, ii. 185 ; on re- 
presentative species of birds, ii. 
190 ; on the young of Turnix, ii. 
202 ; on anomalous young of La- 
nins rufus and Colymbus glacialis, 
ii. 211 ; on the sexes and young of 
the sparrows, ii. 212 ; on dimor- 
phism in some herons, ii. 214 ; on 
orioles breeding in immature plu- 
mage, ii. 214; on the sexes and 
young of Buphus and Anastomus, 
4i. 217 ; on the young of the black- 
cap and blackbird, ii. 219 ; on the 
young of the stonechat, ii. 220 ; 
on the white plumage of Anasto- 
mus, ii. 229 ; on the horns of Anti- 
lope hezoartica, ii. 246 ; on the horns 
of Bovine animals, ii. 247 ; on the 
mode of fighting of Ovis cycloceros, 
ii. 249 ; • on the voice of the Gib- 
bons, ii. 276; on the crest of the 
male wild goat, ii. 282 ; on the 
■colours of Portax picta, ii. 287 ; 
on the colours of Antilope hezo- 
artica, ii. 288 ; on the development 
'Of the horns in the Koodoo and 
Eland antelopes, i. 289 ; on the 
colour of the Axis deer, ii. 290 ; 
on sexual difference of colour in 
LTylobates hoolock, ii. 291 ; on the 
hog-deer, ii. 303 ; on the beard and 
whiskers in a monkey becoming 
white Avith age, ii. 319. 
IBoar, Avild, polygamous in India, i. 
267 ; use of the tusks by the, ii. 
256 ; fighting of, ii. 263. 
Boitakd and Corbie, MM., on the 
transmission of sexual peculiarities 
in pigeons, i. 283; on the anti- 
pathy shoAvn by some female pi- 
geons to certain males, ii. 118. 
Bold, Mr., on the singing of a sterile 
hybrid canary, ii. 53. 
Bombet, on the variability of the 
standard of beauty in Europe, ii. 
370. 
Bombus, difference of the sexes in, i. 
366. 
■Bombycid^, coloration of, i. 394^ 
pairing of the, i. 401. 
Bomby cilia carolinensis^ red appendages 
of, ii. 179. 
Bombyx cynthia, i. 346 ; proportion of 
the sexes in, i. 309, 313; pairing 
of, i. 401. 
Bombyx mori, difference of size of the 
male and female cocoons of, i. 346 ; 
pairing of, i. 401. 
Bombyx Pernyi^ proportion of sexes 
of, i. 313. 
Bombyx Yamamai^ i. 346 ; M. Person- 
nat on, i. 310 ; proportion of sexes 
of, i. 313. 
Bonaparte, C. L., on the call-notes 
of the Avild turkey, ii. 60. 
Bond, F., on the finding of neAV 
mates by croAvs, ii. 104. 
Bone, implements of, skill displayed 
in making, i. 138. 
Boner, C., on the transfer of male 
characters to an old female chamois, 
ii. 245 ; on the antlers of the red 
deer, ii. 252 ; on the habits of stags, 
ii. 259 ; on the pairing of red deer, 
ii. 269. 
Bones, increase of, in length and 
thickness, when carrying a greater 
weight, i. 116. 
Bonnet monkey, i. 192. 
Boomerang, i. 183. 
Borens kyemalis^ scarcity of the male, 
i. 314. 
Bory St. Vincent, on the number of 
species of man, i. 226 ; on the 
colours of Labrns pavo, ii. 16. 
Bos ganrns, horns of, ii. 247. 
Bos primigenins, ii. 240. 
Bos sondaicus, horns of, ii. 247 ; 
colours of, ii. 289. 
Botocudos, i. 181 ; mode of life of, i. 
247 ; disfigurement of the ears and 
lower lip of the, ii. 341. 
Boucher de Perthes, J. C. de, on the 
antiquity of man, i. 3. 
Bourbon, proportion of the sexes in 
a species of Papilio from, i. 310. 
Bourien, on the marriage-customs of 
the savages of the Malay Archi- 
pelago, ii. 373. 
Bovid^, dewlaps of, ii. 284. 
Bower-birds, ii. 102 ; habits of the, 
ii. 69 ; ornamented playing-places 
of, i. 63, ii. 112. 
Bows, use of, i. 232. 
