PALMARIS. 
INDEX. 
PEACOCK. 
453 
rous 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. 
Fapilio, sexual differences of colour- 
ing in species of, i. 389 ; propor- 
tion of the sexes in North Ame- 
rican species of, i. 309 ; coloration 
of the wings in species of, i. 396. 
Fapilio ascanius, i. 389. 
Fapilio Sesostris and Childrenx, varia- 
bility of, i. 402. 
Papilio Turnus, i. 310. 
Papilionid^, 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 cha- 
racters of, i. 216. 
Paradise, Birds of, ii. 100, 181 ; sup- 
posed 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. 
Paradiseaapoda, 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. 
Parakeet, Australian, variation in 
the colour of the thighs of a male, 
ii. 126. 
Parallelism of development of spe- 
cies 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. 
Parin^e, sexual difference of colour 
in, ii. 174. 
Park, Mungo, negro-women teaching 
their children to love the truth, i. 
95 ; his treatment by the negro- 
women, i. 95, 326 ; on negro opi- 
nions of the appearance of white 
men, ii. 346. 
Parrot, racket-shaped feathers in 
the tail of a, ii. 73; instance of 
benevolence in a, ii. 109. 
Parrots, imitative faculties of, i. 44 ; 
change of colour in, i. 152 ; living 
in triplets, ii. 106 ; affection of, ii. 
108 ; colours of, ii. 223 ; sexual 
differences of colour in, ii. 231 ; 
colours and nidification of the, ii. 
171, 174, 176 ; immature plumage 
of the, ii. 188 ; musical powers of, 
ii. 335. 
Parthenogenesis in the Tenthredi- 
na;, i. 314 ; inCynipidse, i. 314; in 
Crustacea, i. 315. 
Partridge, monogamous, i. 269 ; 
proportion of the sexes in the, i. 
306 ; female, ii. 194. 
Partridge-dances,” ii. 68. 
Partridges, living in triplets, ii. 
106 ; spring coveys of male, ii. 107 ; 
distinguishing persons, ii. 110. 
Parus coeruleus, ii. 174. 
Passer, sexes and young of, ii. 212. 
Passer hrachydactylus, ii. 212. 
Passer domesticus, ii. 170, 212. 
Passer montanus, ii. 170, 212. 
Patagonians, self-sacrifice by, i. 88. 
Patterson, Mr., on the Agrionidx, 
i. 362. 
Paulistas of Brazil, i. 225. 
Pavo cristatus, i. 290 ; ii. 136. 
Pavo muticus, i. 290, ii. 136 ; pos- 
session of spurs by the female, ii. 
46, 162. 
Pavo nigripennis, ii. 120. 
Payaguas Indians, thin legs and thick 
arms of the, i. 117. 
Payan, Mr., on the proportion of the 
sexes in sheep, i. 305. 
Peacock, polygamous, i. 269 ; sexual 
characters of, i. 290 ; pugnacity of 
the, ii. 46 ; rattling of the quills by, 
ii. 61 ; elongated tail-coverts of the, 
ii. 72, 97 ; love of display of the, 
ii. 135 ; 68, 87 ; ocellated spots of 
