726 INDEX. 



races of men, 191; supplement on, by Prof. Huxley, 227; develop- 

 ment of the gyri and sulci, 231. 



Brakenridge, Dr., on the influence of climate, 36. 



Brandt, A., on hairy men, 21. 



Braubach, Prof., on the quasi -religious feeling of a dog toward 

 his master, 108; on the self-restraint of dogs, 117. 



Brauer, F. , on dimorphism in Neurothemis, 329. 



Brazil, skulls found in caves of, 192; population of, 197; compres- 

 sion of the nose by the natives of, 665. 



Break between man and the apes, 177. 



Bream, proportion of the sexes in the, 282. 



Breeding, age of, in birds, 552; breeding season, sexual charactettJ 

 making their appearance in the, in birds, 443. 



Brehm, -on the effects of intoxicating liquors on monkeys, 8; on 

 the recognition of women by male Cynocephali, 8; on the diversity of 

 the mental faculties of monkeys, 31; on the habits of baboons, 57; 

 on revenge taken by monkeys, 78; on manifestations of maternal 

 affection by monkeys and baboons, 79; on the instinctive dread of 

 monkeys for serpents, 80; on the use of stones as missils by baboons, 

 92; on a baboon using a mat for shelter from the sun, 93; on the 

 signal-cries of monkeys, 98; on sentinels posted by monkeys, 114; on 

 co-operation of animals, 114; on an eagle attacking a young Cerco- 

 pithfcus, 114; on baboons in confinement protecting one of their 

 number from punishment, 117; on the habits of baboons when 

 plundering, 108; on polygamy in Cynocephalus and Cebus, 246; on 

 the numerical proportion of the sexes in birds, 280; on the love- 

 dance of the blackcock, 412; Palamedea cornuta, 414; on the habits 

 of the black-grouse, 416; on sounds produced by birds of paradise, 

 427; on assemblages of grouse, 460; on the finding of new mates by 

 birds, 464; on the fighting of wild boars, 591; on sexual differences 

 in Mycetes, 613; on the habits of Cynocephalus hamadryas, 674. 



Brent, Mr., on the courtship of fowls, 473. 



Breslau, numerical proportion of male and female births in, 275. 



Bridgman, Laura, 99. 



Brimstone butterfly, 354; sexual difference of color in the, 365. 



British, ancient, tattooing practiced by, 655. 



Broca, Prof., on the occurrence of the supra-condyloid foramen in 

 the human humerus, 24; anthropomorphous apes more bipedal than 

 quadrupedal, 59; on the capacity of Parisian skulls at different 

 periods, 61; comparison of modern and mediaeval skulls, 61; on ts ils 

 of quadrupeds, 65; on the influence of natural selection, 68; on 

 hybridity in man, 194; on human remains from Les Eyzies, 207; on 

 the cause of the difference between Europeans and Hindoos, 218. 



Brodie, Sir B., on the origin of the moral sense in man. 111. 



Bronn, H. G., on the copulation of insects of distinct species, 312. 



Bronze period, men of, in Europe, 145. 



Brown, R., sentinels of seals generally females, 114; on the bat- 

 tles of seals, 571; on the narwhal, 572; on the occasional absence of 

 the tusks in the female walrus, 572; on the bladder-nose seal, 603; on 

 the colors of the sexes in Phoca OrceJilandica, 611; on the apprecia- 

 tion of music by seals, 649; on plants used as love-philters, by North 

 American women, 659. 



Browne, Dr. Crichton, injury to infants during parturition, 276. 



