INDEX. 



623 



Bream, proportion of the sexes in 

 the, 245. 



Breeding, age of, in birds, 478. 



season, sexual characters 



malcing their appearance in the, 

 in birds, 385. 



Brehm, on the effects of intoxicat- 

 ing liquors on monkeys, 7; on 

 the recognition of women by 

 male Cynocephali, 8; on the di- 

 versity of the mental faculties 

 of monkeys, 26; on the habits of 

 baboons, 49; on revenge taken 

 by monkeys, 67; on manifesta- 

 tions of maternal affection by 

 monkeys and baboons, 68; on the 

 instinctive dread of monkeys for 

 serpents, 69; on the use of stones 

 as missiles by baboons, 79; on a 

 baboon using a mat for shelter 

 from the sun, 80; on the signal- 

 cries of monkeys, 85; on sentin- 

 els posted by monkeys, 98; on co- 

 operation of animSJs, 98; on an 

 eagle attacking a young Cercop- 

 ithecus, 98; on baboons in con- 

 finement protecting one of their 

 number from punishment, 100; 

 on the habits of baboons when 

 plundering, 101; on polygamy in 

 Cynocephalus and Cebus, 213; on 

 the numerical proportion of the 

 sexes in birds, 242; on the love- 

 dance of the black-cock, 259; on 

 Palamedea cornuta, 360; on the 

 habits of the Black-grouse, 362; 

 on sounds produced by birds of 

 paradise, 371; on assemblages of 

 grouse, 400; on the finding of 

 new mates by birds, 403; on the 

 fighting of wild boars, 514; on 

 the habits of Cynocephalus 

 hamadryas, 585. 



Brent, Mr., on the courtship of 

 fowls, 411. 



Breslau, numerical proportion of 

 male and female births in, 237. 



Bridgman, Laura, 85. 



Brimstone butterfiy, 319; sexual 

 difference of color in the, 319. 



British, ancient, tattooing prac- 

 ticed by, 569. 



Broca, Prof., on the occurrence of 

 the supra-condyloid foramen in 

 the human humerus, 21; anthro- 

 pomorphous apes more bipedal 

 than quadrupedal, 51; on the 

 capacity of Parisian skulls at 

 different periods, 53; comparison 

 of modern and mediaeval skulls, 

 53; on tails of quadrupeds, 56; 

 on the infiuence of natural se- 

 lection, 58; on hybridity in man, 

 166; on human remains from Les 

 Eyzies, 177; on the cause of the 

 difference between Europeans 

 and Hindoos, 187. 



Brodie, Sir B., on the origin of 

 the moral sense in man, 95. 



Bronn, H. G., on the copulation of 

 insects of distinct species, 272. 



Bronze period, men of, in Europe, 

 125. 



Brown, R., sentinels of seals gen- 

 erally females, 97; on the battles 

 of seals, 496; on the narwhal, 

 498; on the occasional absence 

 of the tusks in the female wal- 

 rus, 498; on the bladder-nose 

 seal, 524; on the colors of the 

 sexes in Phoca Groanlandica, 

 530; on the appreciation of music 

 by seals, 563; on plants used as 

 love-philters, by North Ameri- 

 can women, 572. 



, Dr. Crichton, injury to in- 

 fants during parturition, 238. 



Brown-Sequard, Dr., on the inher- 

 itance of the effects of opera- 

 tions by guinea-pigs, 57, 597. 



Bruce, on the use of the ele- 

 phant's tusks, 503. 



Brulerie, P. de la, on the habits of 

 Ateuchus cicatricosus, 297; on 

 the stridulation of Ateuchus, 

 303. 



Brunnich, on the pied ravens of 

 the Feroe islands, 418. 



Bryant, Dr., preference of tame 

 pigeon for wild mate, 413. 



, Capt., on the courtship of 



Callorhinus ursinus, 518. 



Bubas bison, thoracic projection 

 of, 295. 



Bucephalus capensis, difference of 

 the sexes of, in color, 347. 



Buceros, nidification and incuba- 

 tion of, 448. 



bicornis, sexual differences 



in the coloring of the casque, 

 beak, and mouth in, 420. 



corrugatus, sexual differ- 

 ences in the beak of, 377. 



Buchner, L., on the origin ol 

 man, 2; on the use of the human 

 foot as a prehensile organ, 50; 

 on the mode of progression of 

 the apes, 50; on want of self- 

 consciousness, &c., in savages, 

 81. 



Buoholz, Dr., quarrels of cham 

 seleons, 353. 



Buckland, P., on the numerical 

 proportion of the sexes in rats, 

 242; on the proportion of the 

 sexes in the trout, 244; on 

 Chimsera monstrosa, 336. 



, W., on the complexity of 



crinoids, 89. 



Buckler, W., proportion of sexes 

 of Lepidoptera reared by, 249. 



Buckinghamshire, numerical pro- 

 portion of male and female 

 births in, 237. 



Bucorax abyssinicus, inflation of 

 the neck-wattle of the male dur- 

 ing courtship, 377. 



Budytes Rail, 208. 



Buffalo, Cape, 504. 



, Indian, horns of the, 501. 



, Italian, mode of fighting of 



the, 504. 



