PARAKEET. 



INDEX. 



PERCH. 



667 



Parakeet, Australian, variation in the 

 colour of the thighs of a male, 

 423. 



Parallelism of development of species 

 and languages, 90. 



Parasites on man and animals, 7, 8 ; 

 as evidence of specific identity or 

 distinctness, 169 ; immunity from, 

 correlated with colour, 193. 



Parental feeling in earwigs, star- 

 fishes, and spiders, 106 ; affection, 

 partly a result of natural selection, 

 105. 



Parents, age of, influence upon sex of 

 offspring, 245. 



Pivrina}, sexual difference of colour in, 

 458. 



Park, Mungo, negro-women teaching 

 their children to love the truth, 

 118; his treatment by the negro- 

 women, 118, 562 ; on negro opinions 

 of the appearance of white men, 

 579. 

 'arker, Mr., no bird or reptile in line 

 of mammalian descent, 158. 



Parrot, racket-shaped feathers in the 

 tail of a, 384; instance of benevo-. 

 lence in a, 411. 



Parrots, change of colour in, 60 ; 

 imitative faculties of, 73 ; living 

 in triplets, 409 ; affection of, 410 ; 

 colours and nidification of the, 455, 

 457, 458 ; immature plumage of 

 the, 467 ; colours of, 489 ; sexual 

 differences of colour in, 494 ; musi- 

 cal powers of, 570. 



Parthenogenesis in the Tenthredinae, 

 254; in Cynipida?, 254 ; in Crusta- 

 cea, 255. 



Partridge, monogamous, 219 ; propor- 

 tion of the sexes in the, 248 ; fe- 

 male, 471. 



" dances," 380, 405. 



Partridges, living in triplets, 409 ; 

 spring coveys of male, 409 ; distin- 

 guishing persons, 412. 



Parus cceruleus. 458. 



Passer, sexes and young of, 483. 



— — brachydactylus, 483. 



• domesticus, 455, 483. 



montanus, 455, 483. 



''atagonians, self-sacrifice by, 111; 

 marriages of, 598. 



Patterson, Mr., on the Agrionidae, 

 290. 



Patteson, Bishop, decrease of Melaae- 



sians, 185. 

 Paulistas of Brazil, 173. 

 Pavo cristatus, 236, 430. 

 muticus, 236, 430 ; possession of 



spurs by the female, 364, 450. 

 nigripennis, 419. 



Payaguas Indians, thin legs and thick 



arms of the, 32. 

 Payan, Mr., on the proportion of the 



sexes in sheep, 246. 

 Peacock, polygamous, 219; sexual 



characters of, 236 ; pugnacity of 



the, 364 ; rattling of the quills by, 



375 ; elongated tail-coverts of the, 



384, 402 ; love of display of the, 



394, 431 ; ocellated spots of the, 430 ; 



inconvenience of long tail of the, to 



the female, 444, 451, 452; continued 



increase of beauty of the, 485. 



butterfly, 312. 



Peafowl, preference of females for a 



particular male, 418 ; first advances 



made by the female, 419. 

 Pediculi of domestic animals and man, 



169. 

 Pedigree of man, 165. 

 Pedionomus torquatus, sexes of, 473. 

 Peel, J., on horned sheep, 505. 

 Peewit, wing-tubercles of the male, 



366. 

 Pelagic animals, transparency of, 261. 

 Pelecanus erytltrorhynchus, horny cre*t. 



on the beak of the male, during the 



breeding season, 390. 

 onocrotalus, spring plumage of, 



393. 

 Pelele", an African ornament, 576. 

 Pelican, blind, fed bv his companions. 



102 ; young, guided by old birds, 



102 ; pugnacity of the male, 362. 

 Pelicans, fishing in concert, 101. 

 Pelobius Hcrmanni, stridulation of, 



303, 304. 

 Pelvis, alteration of, to suit the erect 



attitude of man, 53 ; differences of 



the, in the sexes in man, .557. 

 Penelope nigra, sound produced by the 



male, 377. 

 Pennant, on the battles of seals, 500 ; 



on the bladder-nose seal, 528. 

 Pentke, antcnnal cushions of the male, 



276. 

 Perch, brightness of male, daring 



breeding season, 340. 



