BISHOP. 



INDEX. 



BLYTH. 



413 



between the brains of man and of 

 the Orang, i. 11; figui-e of the 

 embryo of the dog, i. 15 ; on the 

 convolutions of the brain in the 

 human foetus, i. 16 ; on the difter- 

 ence between the skulls of man 

 and the quadrumana, i. 190. 



Bishop, J., on the vocal organs of 

 frogs, ii. 28 ; on the vocal organs 

 of corvine birds, ii. 55 ; on the 

 trachea of the Mo'ganser, ii. 60. 



Bison, American, mane of the male, 

 ii. 267. 



Bitterns, dwarf, coloration of the 

 sexes of, ii. 179. 



Biziura lobata, musky odour of the 

 male, ii. 38 ; large size of male, ii. 

 43. 



Blackbird, sexual differences in the, 

 i. 268 ; proportion of the sexes in 

 the, i. 307; acquisition of a song by 

 a, ii. 55 ; colour of the beak in the 

 sexes of the, ii. 72, 227 ; pairing 

 with a thrush, ii. 113 ; colours and 

 nidification of the, ii. 170 ; young 

 of the, ii. 219; sexual difference in 

 coloration of the, ii. 226. 



Black-buck, Indian, sexual differ- 

 ence in the colour of the, ii. 288. 



Blackcap, arrival of the male, be- 

 fore the female, i. 259 ; young of 

 the, ii. 219. 



Black-cock, polygamous, i. 269; 

 proportion of the sexes in the, i. 

 306; pugnacity and love-dance of 

 the, ii. 45 ; call of the, ii. 60 ; 

 moulting of the, ii. 83 ; duration 

 of the courtship of the, ii. 100; 

 sexual difference in coloration of 

 the, ii. 226 ; crimson eye-cere of 

 the, ii. 227 ; and pheasant, hybrids 

 of, ii. 113. 



Black-grouse, characters of young, 

 ii. 185, 194. 



Blackwall, J., on the speaking of 

 the magpie, i. 59 ; on the desertion 

 of their young by swallows, i. 84 ; 

 on the superior activity of male 

 spiders, i. 272 ; on the proportion 

 of the sexes in spiders, i. 314 ; on 

 sexual variation of colour in spi- 

 ders, i. 337 ; on male spiders, i. 338. 



Bladder-nose Seal, hood of the, ii. 

 278. 



Blaine, on the affections of doc^s, ii. 

 270. 



Blair, Dr., on the relative liability of 

 Europeans to yellow fever, i. 243. 



Blake, C. C, on the jaw from La 

 Naulette, i. 126. 



Blakiston, Capt., on the American 

 snipe, ii. 64; on the dances of 

 Tetrao jDhasianellus, ii. 69. 



Blasius, Dr., on the species of Euro- 

 pean birds, ii. 124. 



Bledius taurus, hornlike processes of 

 male, i. 374. 



Bleeding, tendency to profuse, i. 

 292. 



Blenkiron, Mr., on sexual prefer- 

 ence in horses, ii. 272. 



Blennies, crest developed on the 

 head of male, during the breeding 

 season, ii. 12. 



Blethisa imtltipunctata, stridulation 

 of, i, 379. 



Block, on the proportions of the 

 sexes in Fishes, i. 308. 



Blood, arterial, red colour of, i. 323. 



Blood-pheasant, number of spurs 

 in, ii. 46. 



Bluebreast, red-throated, sexual dif- 

 ferences of the, ii. 195. 



Blumenbach, on Man, i. Ill ; on the 

 large size of the nasal cavities in 

 American aborigines, i. 119 ; on the 

 position of man, i. 190; on the 

 number of species of man, i. 226. 



Blyth, E., observations on Indian 

 crows, i. 77 ; on the structure of 

 the hand in species of Hylobates, i. 

 140 ; on the ascertainment of the 

 sex of nestling bullfinches by pull- 

 ing out breast-feathers, ii, 24 ; on 

 the pugnacity of the males of Gal- 

 linula cristata, ii. 41 ; on the pre- 

 sence of spurs in the female Euplo- 

 cunms eriithro2?hthalmus, ii. 46 ; 

 on the pugnacity of the amadavat, 

 ii. 49 ; on the spoonbill, ii. 60 ; on 

 the moulting of Anthus, ii. 83 ; on 

 the moulting of bustards, plovers, 

 and Gallus hankiva, ii. 84 ; on the 

 Indian honey-buzzard, ii. 126 ; on 

 sexual differences in the colour oi 

 the eyes of hornbills, ii. 129 ; on 

 Oriolus melanocepJuilus, ii. 178 ; on 

 Palxornis javanicus, ii. 179 ; on the 



