PUGNACITY. 



INDEX. 



RAYS. 



67I 



Pugnacity of fine-plumaged male 

 birds, 400. 



Pnmas, stripes of young, 464. 



Puppies learning from cats to clean 

 their faces, 73. 



Pycnonotus hccmorrhous, pugnacity of 

 the male, 360 ; display of under 

 tail coverts by the male, 402. 



Pyranga cestiva, male aiding in incu- 

 bation, 453. 



Pyrodss, difference of the sexes in 

 colour, 294. 



Quadrumana, hands of, 50 ; differences 

 between man and the, 149 ; sexual 

 differences of colour in, 537 ; orna- 

 mental characters of, 549 ; analogy 

 of sexual differences of, with those 

 of man, 558 ; fighting of males for 

 the females, 562 ; monogamous 

 habits of, 590 ; beards of the, 602. 

 Quain, R., on the variation of the 



muscles in man, 26. 

 Quatrefages, A. de, on the occur- 

 rence of a rudimentary tail in man, 

 22 ; on variability, 30 ; on the 

 moral sense as a distinction between 

 man and animals, 97 ; civilised men 

 stronger than savages, 136 ; on the 

 fertility of Australian women with 

 white men, 170; on the Paulistas 

 of Brazil, 173 ; on the evolution of 

 the breeds of cattle, 177; on the 

 Jews, 193 ; on the liability of 

 negroes to tropical fevers after 

 residence in a cold climate, 194; 

 on the difference between field- 

 and house-slaves, 196; on the in- 

 fluence of climate on colour, 196 ; 

 colours of annelids, 265 ; on the 

 Ainos, 560 ; on the women of 

 San Giuliano, 586. 



Qucrqvedula acuta, 414. 



Qu^telet, proportion of sexes in man, 

 343 ; relative size in man and 

 woman, 244. 



Quichua Indians, 34 ; local variation 

 of colour in the, 196; no grey 

 hair among the, 559 ; hairlessness 

 of the, 561 ; long hair of the, 580. 



Qm'scalus major, 225 ; proportions of 

 the sexes of, in Florida and Hondu- 

 ras, 248. 



Rabbit, white tail of the, 542. 



Rabbits, domestic, elongation of thu 

 skull in, 56 ; modification of the 

 skull, in by the lopping of the 

 ear, 56 ; danger-signals of, 100 ; 

 numerical proportion of the sexes* 

 in, 247. 



Races, distinctive characters of, 167, 

 168 ; or species of man, 168 ; crossed, 

 fertility or sterility of, 170; of 

 man, variability of the, 174 ; of 

 man, resemblance of, in mental 

 characters, 178 ; formation of, 

 181; of man, extinction of, 181; 

 effects of the crossing of, 192; of 

 man, formation of the, 192; of 

 man, children of the, 557 ; beard- 

 less, aversion of, to hairs on the 

 face, 580. 



Raffles, Sir S., on the banteng, 536, 



Rafts, use of, 48, 180. 



Rage, manifested by animals, 69. 



Eaia batis, teeth of, 335. 



clavata, female spined on the 



back, 331 ; sexual difference in th>3 

 teeth of, 334. 



maculata, teeth of, 335. 



Rails, spur-winged, 364. 



Ram, mode of fighting of the 508 ; 

 African, mane of an, 532 ; fat- 

 tailed, 532. 



Rameses II., features of, 168. 



Ramsay, Mr., on the Australia!! 

 musk-duck, 359 ; on the regent- 

 bird, 413 ; on the incubation of 

 Menura superba, 451. 



Hana esculenta, vocal sacs of, 350. 



Rat, common, general dispersion of, 

 a consequence of superior cunning, 

 80 ; supplantation of the native, 

 in New Zealand, by the European 

 rat, 191 ; common, said to be poly- 

 gamous, 218 ; numerical propor- 

 tion of the sexes in, 247. 



Rats, enticed by essential oils, 530. 



Rationality of birds, 410. 



Rattle-snakes, difference of the sexeu 

 in the, 351 ; rattles as a call, 353.. 



Raven, vocal organs of the 370 ; 

 stealing bright objects, 413; pied, 

 of the Feroe Islands, 424. 



Rays, prehensile organs of male, 33 J. 



