i. 95;

his treatment by the negro-women, i. 95, 326; on negro opinions 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 Tenthredinae, i. 314; in Cynipidae, 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 caeruleus_, ii. 174.

_Passer_, sexes and young of, ii. 212.

_Passer brachydactylus_, ii. 212.

_Passer domesticus_, ii. 170, 212.

_Passer montanus_, ii. 170, 212.

PATAGONIANS, self-sacrifice by, i. 88.

PATTERSON, Mr., on the _Agrionidae_, i. 362.

PAULISTAS of Brazil, i. 225.

_Pavo cristatus_, i. 290; ii. 136.

_Pavo muticus_, i. 290, ii. 136; possession 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 the, ii. 135; inconvenience of long tail of the, to the female, ii. 154, 164, 165; continued increase of beauty of the, ii. 216.

PEACOCK-BUTTERFLY, i. 392.

PEAFOWL, preference of females for a particular male, ii. 120; first advances made by the female, ii. 120.

_Pediculi_ of domestic animals and man, i. 219.

PEDIGREE of man, i. 213.

_Pedionomus torquatus_, sexes of, ii. 201.

PEEWIT, wing-tubercles of the male, ii. 48.

PELAGIC animals, transparency of, i. 323.

_Pelecanus erythrorhynchus_, horny crest on the beak of the male, during the breeding season, ii. 80.

_Pelecanus onocrotalus_, spring plumage of, ii. 85.

PELELE, ii. 341.

PELICAN, blind, fed by his companions, i. 77; young, guided by old birds, i. 77; pugnacity of the male, ii. 43.

PELICANS, fishing in concert, i. 75.

_Pelobius Hermanni_, stridulation of, i. 380, 382.

PELVIS, alteration of, to suit the erect attitude of man, i. 143; differences of the, in the sexes in man, ii. 317.

_Penelope nigra_, sound produced by the male, ii. 64.

PENNANT, on the battles of seals, ii. 240; on the bladder-nose seal, ii. 278.

_Penthe_, antennal cushions of the male, i. 343.

PERCH, brightness of male, during breeding season, ii. 13.

PEREGRINE Falcon, new mate found by, ii. 104.

PERIOD of variability, relation of, to sexual selection, i. 296.

PERIODICITY, vital, Dr. Laycock on, i. 12.

PERIODS, lunar, followed by functions in man and animals, i. 12, 212.

PERIODS of life, inheritance at corresponding, i. 280, 285.

_Perisoreus canadensis_, young of, ii. 209.

_Peritrichia_, difference of colour in the sexes of a species of, i. 367.

PERIWINKLE, i. 324.

_Pernis cristata_, ii. 126.

PERSEVERANCE, a characteristic of man, ii. 328.

PERSIANS, said to be improved by intermixture with Georgians and Circassians, ii. 357.

PERSONNAT, M., on _Bombyx Yamamai_, i. 310.

PERUVIANS, civilisation of the, not foreign, i. 183.

PETRELS, colours of, ii. 230.

_Petrocincla cyanea_, young of, ii. 219.

_Petronia_, ii. 212.

PFEIFFER, Ida, on Javanese ideas of beauty, ii. 347.

_Phacochoerus aethiopicus_, tusks and pads of, ii. 265.

PHALANGER, Vulpine, black varieties of the, ii. 294.

_Phalaropus fulicarius_, ii. 203.

_Phalaropus hyperboreus_, ii. 203.

_Phanaeus_, i. 373.

_Phanaeus carnifex_, variation of the horns of the male, i. 370.

_Phanaeus faunus_, sexual differences of, i. 369.

_Phanaeus lancifer_, i. 370.

_Phasgonura viridissima_, stridulation of, i. 354, 356.

_Phasianus Soemmerringii_, ii. 157.

_Phasianus versicolor_, ii. 89.

_Phasianus Wallichii_, ii. 93, 196.

PHASMIDAE, mimickry of leaves by the, i. 414.

PHEASANT, polygamous, i. 269; production of hybrids with the common fowl, ii. 122; and black grouse, hybrids of, ii. 113; immature plumage of the, ii. 188.

PHEASANT, Argus, ii. 72, 181; display of plumage by the male, ii. 91; ocellated spots of the, ii. 134, 141; gradation of characters in the, ii. 141.

PHEASANT, Blood-, ii. 46.

PHEASANT, Cheer, ii. 93, 195.

PHEASANT, Eared, i. 290, ii. 93, 195; sexes alike in the, ii. 178; length of the tail in the, ii. 166.

PHEASANT, Golden, display of plumage by the male, ii. 89; sex of young, ascertained by pulling out head-feathers, ii. 214; age of mature plumage in the, ii. 213.

PHEASANT, Kalij, drumming of the male, ii. 62.

PHEASANT, Reeve's, length of the tail in, ii. 166.

PHEASANT, Silver, sexual coloration of the, ii. 228; triumphant male, deposed on account of spoiled plumage, ii. 120.

PHEASANT, Soemmerring's, ii. 156, 166.

PHEASANT, Tragopan, ii. 72; display of plumage by the male, ii. 91; markings of the sexes of the, ii. 134.

PHEASANTS, period of acquisition of male characters in the family of the, i. 290; proportion of sexes in chicks of, i. 306; length of the tail in, ii. 156, 164, 166.

_Philodromus_, i. 337.

PHILTERS, worn by women, ii. 344.

_Phoca groenlandica_, sexual difference in the coloration of, ii. 287.

_Phoenicura ruticilla_, ii. 105.

PHOSPHORESCENCE of insects, i. 345.

PHRYGANIDAE, copulation of distinct species of, i. 342.

_Phryniscus nigricans_, ii. 25.

PHYSICAL inferiority, supposed, of man, i. 156.

PICKERING, on the number of species of man, i. 226.

PICTON, J. A., on the soul of man, ii. 395.

_Picus auratus_, ii. 43.

PIERIDAE, mimickry by female, i. 413.

_Pieris_, i. 393.

PIGEON, carrier, late development of the wattle in, i. 293; domestic, breeds and sub-breeds of, ii. 178; pouter, late development of the crop in, i. 293; female, deserting a weakened mate, i. 262.

PIGEONS, nestling, fed by the secretion of the crop of both parents,