INDEX. 727 



Brown-Sequard. Dr., on the inheritance of the effects of opera- 

 tions by guinea-pigs, 67, 689. 



Bruce, on the use of the elephant's tusks. 578. 



Brulerie, P. de la, on the habits of Ateuchus cicatricosus, 340; on 

 the strid ulation of Ateuchus, 346. 



Briinnich, on the pied ravens of the Feroe Islands, 482. 



Bryant, Dr., preference of tame pigeon for wild mate, 475; Bry- 

 ant, Capt., on the Courtship of Callorhinus ursinus, 596. 



Bubas bison, thoracic projection of, 337. 



Biibulus caffer, use of horns, 580. 



Bucephalus capemis, difference of the sexes of, in color, 398. 



BuceroK, nidifi cation and incubation of, 516 ; buceros bicornis, 

 sexual differences in the coloring of the casque, beak, and mouth in, 

 484; buceros corrugatus, sexual differences in the beak, 435. 



Buchner, L., on the origin of man, 3; on the use of the human 

 foot as a prehensile organ, 58; on the mode of proge?sion of the 

 apes, 58; on want of self -consciousness, etc.. in savages, 94. 



Bucholz. Dr., quarrels of chamaeleons, 405. 



Buckinghamshire, numerical proportion of male and female births 

 in, 274. 



Buckland, F., on the numerical proportion of the sexes in rats, 

 279; on the proportion of the sexes in the trout, 282; on CMmcera 

 monstrosa, 385. 



Buckland, W., on the complexity of crinoids, 103. 



Buckler, W., proportion of sexes of Lepidoptera reared by, 285. 



Bucornx abysidnicus, inflation of the neck-wattle of the male 

 during courtship, 435. 



Badtjtes Raii, 240. 



Buffalo, Cape, 580; Indian, horns of the, 576; Italian, mode of 

 fighting of the. 580. 



Buffon, on the number of species of man, 199. 



Bnfo nkimmennfo, 396. 



Bugs, 318. 



Buist, R., on the proportion of the sexes in salmon, 281; on the 

 pugnacity of the male salmon, 377. 



Bulbul, pugnacity of the male, 409; display of under tail-coverts 

 by the male, 456. 

 'Bull, mode of fighting of the, 579; curled frontal hair of the, 608. 



Buller, Dr., on the Huia, 236; the attachment of bird.*, 466. 



Bullfinch, sexual differences in the, 248; piping, 418; female, 

 singing of the, 420; courtship of the, 455; widowed, finding a new 

 mate, 464; attacking a reed-bunting, 468; nestling, sex ascertained 

 by pulling out breast feathers, 551. 



Bullfinches, distinguishing persons, 467; rivalry of female, 477. 



Bulls, two young, attacking an old one, 115; wild, battles of, 571. 



Bull trout, male, coloring of, during the breeding-season. 386. 



Bunting, reed, head feathers of the male, 455; attacked by a bull- 

 finch, 468. 



Buntings, characters of young, 529. 



Biiphm coromandus, sexes and young of, 553; change of color in ; 

 563. 



Burchell, Dr., on the zebra, 623; on the extravagance of a Bush- 

 woman in adorning herself, 658 ; celibacy unknown among the 



