SUBJECT INDEX 



749 



helicine arteries of, 255 ; erectile tissue 

 of, 256 sq. ; sexual irritants of, 258 ; of 

 sheep, 259 ; filiform process of, ib. 

 sqq. ; of giraffe, 259 ; of gazelle, ib. ; 

 fibre-cartilage bodies of, ib. ; of bull, 

 261 ; blood pressure in, 262 ; erection 

 of, ib. sqq. ; retraction of, ib. 



Penguin, periodicity of breeding in, 29 



Pentoses, 282 



Perameles, foetal nutrition in, 36 n. ; 

 corpus luteum in, 367 ; placental 

 structure of, 418 sq. ; foetal membranes 

 of, 419 ; period of gestation in, ib. 



Percaglobulin in eggs of perch, 291 



Perch, egg-membrane in, 290 ; perca- 

 globulin in eggs of, 291 



Perineal gland, 253 ; in musk deer, ib. ; 

 in musk rat, ib. ; in hamster, ib. 



Periodicity in breeding, 10, 13, 28 sqq. ; 

 in salmon, 29 ; in Mammalia, ib. sq. ; 

 in penguin, 29 ; in whale, ib. ; in 

 elephant, ib. ; in deer, 30 



Period of gestation, see Gestation 



Peripatus, breeding season in, 10 



Peri-placental folds of rabbit, 452 



Peristalsis of uterus, 173 sq. 



Peritoneum, 164 n. ; connection of, with 

 uterus, 71 



Peri vascular sheath, 454 



Permanent placenta of Tupaia javanica, 

 486 



Persistent corpora lutea, 373 



Petrel, incubation period in, 23 



Phagocytosis in bat, 488 



Phalarope, phenomena associated with 

 breeding in, 27 



Phascolarctus, breeding habit in, 67 



Phascolarctiis cinereus, oestrous cycle in, 

 35 



Phascolomys, breeding habit of, 67 



Pheasant, hermaphroditism in, 694 



Phloridzin, effect of, on milk, 604 sq. 



Phorphatides in corpus luteum, 274 sq. 



Phosphoprotein, 290 



Phosphorised fats, 310 ; in egg of fowl, 

 279 sqq. ; in eggs of herrings, 290 ; 

 source of, in ovary, 292 ; in eggs of 

 insects, 293 ; in spermatozoa, 302 ; 

 in tails of spermatozoa, 311 



Phosphorus, 307 ; in egg of fowl, 278 sq., 

 282 ; metabolism of, 297, 389 ; meta- 

 bolism of, during pregnancy, 519, 550 ; 

 in foetus of man, 547 ; in pregnancy, 

 550 sq. ; in urine, 551 ; in ash of pup, 

 595 ; in milk of dog, ib. ; in serum of 

 dog, ib. ; as cure for impotence, 638 



Phylloxera, dimorphism of ova in, 679 ; 

 sex-determination in, 674 n. 



Pig, cestrous cycle in, 46 ; period of 

 gestation in, 46, 68 n. ; uterine cycle in, 

 103, 106; ovary of embryo of, 112; 

 ovulation in, 130 ; formation of corpus 

 luteum in, 144 ; form of spermatozoa 

 in, 169 ; in- breeding in, 216 ; ovario- 

 tomy in. 361, 388 sq. ; ovariotomy 



during pregnancy in, 370 ; prochorion 

 of, 406 ; yolk-sac in, 420 ; chorion 

 of, 427 ; blastocysts of, ib. sq. ; pla- 

 centa of, 427 sqq., 509 ; trophoblast of, 

 428 ; uterine mucosa of, ib. ; source 

 of fcetal iron, 434 ; mammary glands of, 

 587 sq. ; size of litters in, 623 ; fertility 

 in, 627 sq., 636 ; inheritance of fertility 

 in, 643 ; fcetal atrophy in, 656 ; di- 

 morphism of spermatozoa in, 678 n. ; 

 hermaphroditism in, 695 ; growth of, 

 707 ; puberty in, 714 



Pigeon, maturation of ova in, 128 ; polar 

 body in, 128 ; fertilisation in, 134 sq. ; 

 ovulation in, 135 ; fertility in, 628 ; 

 sex-determination in, 685 sq. ; inter- 

 sexuality in, 686, 694. See also Ring- 

 dove 



Pigment, 434 ; of uterine mucosa, 97 ; of 

 mammary glands, 588 sqq. 



Pike, longevity in, 722 



Pineal gland, effect of, on generative 

 organs, 384 ; effect of extract of, on 

 tadpoles, 384 



Pine martin, oestrous cycle in, 53 sq. 



Pisces, see Fish 



Pituitary gland, effect of castration on, 

 381 sq. ; effect of ovariotomy on, 382 ; 

 during pregnancy, ib. ; effect of, on 

 lactation, 383 ; extract of, 383, 604 

 sq., 621 ; during pregnancy in man, 

 559 



Pityriasis versicolor, 559 



Placenta, Chapter X., passim ; historical, 

 393 sqq. ; as organ of foetal respira- 

 tion, 394 ; intervillous spaces of, 395 ; 

 of Garni vora, 408, 410, 442 sqq. ; of 

 Proboscidea, 408, 450 ; of Rodentia, 

 408, 451 ; of Insectivora, 408, 410, 

 476 sqq., 509 ; of Cheiroptera, 408, 

 410, 487 sqq. ; of Lemuridae, 408 ; of 

 Simiida3, 408 ; of Ungulata, 408, 410 ; 

 of Primates, 408, 410, 490 sqq., 509; 

 of Cetacea, 408, 410; of Sirenia, 408 

 sqq. ; of Edentata, 409 sq. ; of Manis, 

 409 ; of Bradypus, ib. ; of Orycteropus, 

 ib. ; of dugong, ib. ; fate of, in mole, 

 ib. ; of hedgehog, 409, 476 sqq. ; of 

 shrew, 409, 481 sqq. ; of Gymnura, 409 ; 

 of Tupaice, 409, 485 ; of Galeopitheci, 

 409 ; of Indeciduata, 427 sqq. ; of 

 Ungulata, 427 sqq., 509 ; of pig, 



427 sqq., 509 ; of Galago agisymbanus, 

 428, 440 ; of horse, 428 sq. ; of sheep, 



428 sqq., 449, 509 ; of cow, 429, 432 

 sq., 435 ; of Cervus, 432 ; of giraffe, 

 ib. ; of Oreas, ib. ; of Tetraceros, ib. ; 

 of sheep, 435 ; of Lemuroidea, 440 ; 

 of Tarsius, ib. ; of NycticebuA, ib. ; of 

 Lepilemur, 441 ; of Cetacea, 442 ; of 

 Orca, ib. ; of Sirenia, ib. ; of Halicore, 

 ib. ; of Edentata, ib. ; of Orycteropus, 

 ib. ; of Myrmecophaga, ib. ; of Taman- 

 dua, ib. ; of Bradypus, ib. ; of Dasypus, 

 ib. ; of Manis, ib. ; of Choice-pus, ib. ; 



