412 



BEDDOE. 



INDEX. 



BISCHOFF. 



a subvariety of the monk pigeon, 

 ii. 132 ; on spurred hens, ii. 162. 



Beddoe, Dr., on causes of difterence 

 in stature, i. 115. 



Bee-eater, ii. 56. 



Bees, i. 73 ; destruction of drones 

 and queens by, i. 82 ; pollen-baskets 

 and stings of, i, 155; female, se- 

 condary sexual characters of, i. 254 ; 

 difterence of the sexes in, i. 365. 



Beetle, luminous larva of a, i. 345. 



Beetles, i. 366 ; size of the cerebral 

 ganglia in, i, 145 ; dilatation of 

 the fore tarsi in male, i. 343 ; 

 blind, i. 367 ; stridulation of, i. 

 378. 



Belgium, ancient inhabitants of, i. 

 237. 



Bell, Sir C, on emotional muscles in 

 man, i. 5 ; " snarling muscles," i. 

 127 ; on the hand, i. 141. 



Bell, T., on the numerical porpor- 

 tion of the sexes in moles, i. 305 ; 

 on the newts, ii. 24 ; on the croak- 

 ing of the frog, ii. 27 ; on the dif- 

 ference in the coloration of the 

 sexes in Zootoca vivipara, ii. 36 ; on 

 moles fighting, ii. 239. 



Bell-bird, sexual difterence in the 

 colour of the, ii. 79. 



Bell-birds, colours of, ii, 228. 



Benevolence, manifested by birds, 

 ii. 109. 



Bennett, A. W., on the habits of 

 Dromosus irroratus, ii. 205. 



Bennett, Dr., on birds of paradise, ii. 

 89. 



Beniida antarctica, colours of, ii. 

 228. 



Bernicle gander pairing with a 

 Canada goose, ii. 114. 



Bettoni, E., on local difterences in 

 the nests of Italian birds, ii. 171. 



Bhoteas, colour of the beard in, ii. 

 319. 



Jjhringa, disciform tail-feathers of, ii. 

 83. 



Bibio, sexual differences in the genus, 

 i. 349. 



BiCHAT, on beauty, ii. 354. 



Bile, coloured, in many animals, i. 

 323. 



BiMANA, i. 190. 



Birds, imitations of the songs of other 



birds by, i. 44; dreaming, i. 46 

 language of, i. 55 ; sense of beauty 

 in, i. 63 ; pleasure of, in incubation, 

 i. 79; male, incubation by, i. 210; 

 and reptiles, alliance of, i. 213 ; 

 sexual differences in the beak of 

 some, i. 255 ; migrator)'', arrival of 

 the male before the female, i. 259 ; 

 apparent relation between polyga- 

 my and marked sexual difterences 

 in, i. 270 ; monogamous, becoming 

 polygamous under domestication, i. 

 270 ; eagerness of male in pursuit 

 of the female, i. 272 ; wild, nume- 

 rical proportion of the sexes in, i. 

 306 ; secondary sexual characters 

 of, ii. 38 ; difterence of size in the 

 sexes of, ii. 43 ; fights of male, wit- 

 nessed by females, ii. 49 ; display 

 of male, to captivate the females, 

 ii. 50 ; close attention of, to the 

 songs of others, ii. 52 ; acquiring 

 the song of their foster-parents, 

 ii. 55 ; brilliant, rarely good song- 

 sters, ii. 56 ; love-antics and dances 

 of, ii. 68 ; coloration of, ii. 74 et 

 seqq. ; moulting of, ii. 80 et seqq. ; 

 unpaired, ii. 103 ; male, singing 

 out of season, ii. 106 ; mutual 

 affection of, ii. 108 ; in confinement, 

 distinguish persons, ii. 110 ; hybrid, 

 production of, ii. 113; European, 

 number of species of, ii. 124; vari- 

 ability of, ii. 124 ; gradation of 

 secondary sexual characters in, ii. 

 135 ; obscurely coloured, building 

 concealed nests, ii. 169 ; young 

 female, acquiring male characters, 

 ii. 180 ; breeding in immature plu- 

 mage, ii. 214 ; moulting of, ii. 214 ; 

 aquatic, frequency of white plu- 

 mage in, ii. 229 ; vocal courtship of, 

 ii. 331 ; naked skin of the head and 

 neck in, ii. 377. 



Birgus latro, habits of, i. 334. 



BiRKBECK, Mr. on the finding of new 

 mates by Golden Eagles, ii. 105. 



Birthplace of man, i. 199. 



Births, numerical proportions of the 

 sexes in, in animals and man, i. 

 263, 265 ; male and female, nume- 

 rical proportion of, in England, i. 

 300. 



BiSCiiOFF, Prof., on the agreement 



