670 



POLTGENISTS. 



INDEX. 



PUFF-BIKWI. 



domeptication, 220 ; supposed in- 

 crease of lemnle births by, 245 ; in 

 the sticldcback, 332. 



Polygenists, 176. 



Polynesia, prevalence cf infanticide 

 in, 592. 



Polynesians, wide geographical range 

 of 29 ; difference of stature among 

 the, 31 ; crosses of, 173; Tariability 

 of, 174; heterogeneity of the, 192 ; 

 aversion of, to hairs on the face, 

 fi«l. 



I'olijplectron, number of spurs in, 364; 

 display of plumage by the male, 

 396 ; gradation of characters in, 

 431; female of, 471. 



— — chinquia, 397, 432. 



HardLcicMi, 432. 



■ malaccense, 432, 433. 



Napoleonis, 432, 433. 



I'ulyzoa, 262. 



J'untoporeia affinis, 266. 



Porcupine, mute, except in the rut- 

 ting season, 526. 



Pore-s, excretory, numerical relation 

 of, to the hairs in sheep, 198. 



P rpitcBj bright colours of some, 260. 



J'ortax picta, dorsal crest and throat- 

 tuft of, 530 ; sexual differences of 

 colour in, 535, 543. 



Portunus puber, pugnacity of, 269. 



rotamoch(srus penicillatus^ tusks and 

 facial knobs of the, 520. 



Pouchet, G., the relation of instinct 

 to intelligence, 67 ; on the in- 

 stincts of ants, 147 ; on the caves 

 of Abou-Simbel, 168 ; on the im- 

 munity of negroes from yellow 

 fever, 193; change of colour in 

 fishes, 344. 



Pouter pigeon, late development of 

 the large crop in, 238. 



Powell, Dr., on stridulation, 281. 



I^ower, Di*., on the different colours 

 of the sexes in a species of Squilla, 

 271. 



Powys, Mr., on the habits of the 

 cnariinch in Corfu, 248. 



Pre-eniineuce of man, 48 



Preference for males by female birds, 

 tl4, 420 ; shewn by mammals, in 

 pairing, 522. 



Prehensile organs, 209. 



Presbytis eiUellus, fighting of tne 

 male, 562. 



Preyer, Dr., on function of shell o/ 

 ear, 14 ; on supernumerary mam- 

 mcB in women, 37. 



Prichard, on the difference of stature 

 among the Polynesians, 31 ; on the 

 connection between the breadth o' 

 the skull in the Mongolians and the 

 perfection of their senses, 34 ; on 

 the capacity of British skulls o^ 

 different ages, 55 ; on the flattened 

 heads of the Colombian savages, 

 575 ; on Siamese notions of beauty, 

 578 ; on the beardlessness of the 

 Siamese, 581 ; on the deformation 

 of the head among American tribes 

 and the natives of Arakhan, 583. 



Primary sexual organs, 207. 



Primates, 149, 205 ; sexual differences 

 of colour in, 537. 



Primogeniture, evils of, 135. 



Prionidse, difference of the sexes ia 

 - colour, 294. 



Proctotretus multiina&ilatus^ 358. 



tenuis^ sexnal diU'erence in the 



colour of, 358. 



Profligacy, 137. 



Progenitors, early, of man, 100. 



Progress, not the normal rule in hn- 

 man society, 133; elements of, 141. 



Prong-horn antelope, horns of, 234. 



Proportions, difference of, in distinct 

 races, 167. 



Protective colouring in butterflies, 

 312 ; in lizards, 358 ; in birds, 473, 

 489 ; in mammals, 542. 



nature of the dull colouring oi 



female Lepidoptera, 321, 322, 324. 



resemblances in fishes, 344. 



Protozoa, absence of secondary sexual 

 characters in, 260. 



Pruner-Bey, on the occurrence of the 

 supra-condyloid foramen in the 

 humerus of man, 22 ; on the colour 

 of negro infants, 557. 



Prussia, numerical proportion of male 

 and female births in, 243. 



Psocus, proportions of the sexes in, 

 254. 



Ptarmigan, monogamous, 219 ; sum- 

 mer and winter plumage of the, 

 390, 392 ; nuptial assemblasjes of, 

 406 ; triple moult of the, 462 ; pro- 

 tective coloration of, 473. 



Puff-birds, colours and nidification o( 

 ths. 455. 



