i. 282;

on the tusks of the musk-deer, ii. 256, 258; on the odoriferous glands of mammals, ii. 279; on the odoriferous glands of the musk-deer, ii. 280; on winter changes of colour in mammals, ii. 298; on the ideal of female beauty in North China, ii. 344.

_Palmaris accessorius_ muscle, variations of the, i. 109.

PAMPAS, horses of the, i. 236.

PANGENESIS, hypothesis of, i. 280, 284.

PANNICULUS carnosus, i. 19.

_Papilio_, sexual differences of colouring in species of, i. 389; proportion of the sexes in North American species of, i. 309; coloration of the wings in species of, i. 396.

_Papilio ascanius_, i. 389.

_Papilio Sesostris_ and _Childrenae_, variability of, i. 402.

_Papilio Turnus_, i. 310.

_Papilionidae_, variability in the, i. 402.

PAPUANS, line of separation between the, and the Malays, i. 218; beards of the, ii. 322; hair of, ii. 340.

PAPUANS and Malays, contrast in characters of, i. 216.

PARADISE, Birds of, ii. 100, 181; supposed by Lesson to be polygamous, i. 260; rattling of their quills by, ii. 61; racket-shaped feathers in, ii. 73; sexual differences in colour of, ii. 76; decomposed feathers in, ii. 74, 97; display of plumage by the male, ii. 88.

_Paradisea apoda_, barbless feathers in the tail of, ii. 74; plumage of, ii. 78; and _P. papuana_, divergence of the females of, ii. 192.

_Paradisea rubra_, ii. 75, 78.

PARAGUAY, Indians of, eradication of eyebrows and eyelashes by, ii. 348.

PARRAKEET, Australian, variation in the colour of the thighs of a male, ii. 126.

PARALLELISM of development of species and languages, i. 59.

PARASITES on man and animals, i. 12; as evidence of specific identity or distinctness, i. 219; immunity from, correlated with colour, i. 242.

PARENTAL affection, partly a result of natural selection, i. 81.

PARENTS, age of, influence upon sex of offspring, i. 302.

PARINAE, sexual difference of colour in, ii. 174.

PARK, Mungo, negro-women teaching their children to love the truth,