PREFERENCE, 
INDEX. 
QUATREFAGES. 
457 
Preference for males by female ! 
birds, ii. 113, 122 ; shown by mam- 
mals, in pairing, ii. 268. 
Prehensile organs, i. 256. 
Presbytis enieflus, fighting of the 
male, ii. 324. 
Preyer, Dr., on supernumerary mam- 
ma in women, i. 125. 
Prichard, on the difference of stature 
among the Polynesians, i. 115 ; on 
the connection between the breadth 
of the skull in the Mongolians and 
the perfection of their senses, i. 
119; on the capacity of British 
skulls of different ages, i. 146 ; on 
the flattened heads of the Colombian 
savages, ii. 340; on Siamese notions ! 
of beauty, ii. 345 ; on the beard- 
lessness of the Siamese, ii. 349; on 1 
the deformation of the head among I 
American tribes and the natives of 
Arakhan, ii. 352. 
Primary sexual organs, i. 254. 
Primates, i. 190 ; sexual differences 
of colour in, ii. 290. 
Primogeniture, evils of, i. 170. 
Primula , relation between number 
and size of seeds in, i. 317. 
Prionid^e, difference of the sexes in 
colour, i. 367. 
Proctotretus multiimculatus , ii. 26, 
37. 
Pt'octotretus tenuis , sexual difference 
in the colour of, ii. 37. 
Profligacy, i. 173. 
Progenitors, early, of man, i. 206. 
Progress, not the normal rule in 
human society, i. 166 ; elements 
of, i. 177. 
Prong-horn, horns of, i. 289. 
Proportions, difference of, in distinct 
races, i. 216. 
Protective colouring in butterflies, 
i. 392; in lizards, ii. 37 ; in birds, 
ii. 197, 223; in mammals, ii. 298, 
299. 
Protective nature of the dull colour- 
ing of female Lepidoptera, i. 403, 
405, 414. 
Protective resemblances in Ashes, 
ii. 18. 
Protozoa, absence of secondary sex- 
ual characters in, i. 321. 
Pruner-Bey, on the occurrence of 
the supra-condyloid foramen in the 
humerus of man, i. 29 ; on the 
colour of negro infants, ii. 31&. 
Prussia, numerical proportion of male 
and female births in, i. 301. 
Psocus , proportions of the sexes in, i. 
314. 
Ptarmigan, monogamous, i. 269 ; 
summer and winter plumage of the, 
ii. 81, 83 ; nuptial assemblages of, 
ii. 101 ; triple moult of the, ii. 
181 ; protective coloration of, ii. 
198. 
Puff-birds, colours and nidification 
of the, ii. 171. 
Pugnacity of fine-plumaged male 
birds, ii. 93. 
Pumas, stripes of young, ii. 183. 
Puppies learning from cats to clean 
their faces, i. 44. 
Pyomnotus hmmorrhous , pugnacity of 
the male, ii. 41 ; display of under 
tail coverts by the male, ii. 96. 
Pyranya gsttiva, male aiding in incu- 
bation, ii. 167. 
Pyrodcs, difference of the sexes in 
colour, i, 367. 
Q. 
Quadrumana, hands of, i. 139; dif- 
ferences between man and the, i. 
190 ; dependence of, on climate, i. 
218; sexual differenced of colour 
li * ’ ornamental characters 
of, ii. 306 ; analogy of sexual dif- 
ferences o{, with those of man, ii. 
318; fighting of males for the 
females, ii, 324; monogamous habits 
of, ii. 361 ; beards of the, ii. 378. 
Quain, R., on the variation of the 
muscles in man, i. 109. 
Quatrefages, A. de, on the occur- 
rence of a rudimentary tail in man, 
i. 29 ; on the moral sense as a dis- 
tinction between man and animals, 
i. 70; on variability, i. 112; on 
the fertility of Australian women 
with white men, i. 221 ; on the 
Paulistas of Brazil, i. 225 ; on the 
evolution of the breeds of cattle, i. 
230 ; on the Jews, i. 242 ; on the 
liability of negroes to tropical fevers 
