SUBJECT INDEX 



747 



Cetacea, ib. sq. ; in porpoise, 48 ; in 

 dog, ib. aqq. ; in carnivora, ib. ; in 

 wolf, 50 ; in cat, 51 ; in wild cat, 52 ; 

 in lion, ib. ; in puma, 53 ; in bear, 

 ib. ; in ferret, ib. ; in polecat, ib. ; 

 in stoat, ib. sqq. ; in weasel, ib. ; in 

 pine martin, ib. sq. ; in otter, 54 ; in 

 harp seal, ib. ; in seal, ib. ; in fur seal, 

 ib. ; in walrus, ib. ; in badger, ib. n. ; 

 in Insectivora, 55 sq. ; in shrew, 55 ; 

 in water-shrew, ib. ; in Malayan hedge- . 

 hog, ib. ; in mole, ib. ; in bat, 56 ; 

 in Primates, ib. sqq. ; in lemurs, 56 ; in 

 Tarsius spectrum, ib. ; in monkey, 

 57 sqq. ; in Macacus, 57 sq. ; in Cerco- 

 cebus, 58 ; in Papio, ib. ; in Macacus 

 nemestrinus, ib. ; in Cercopithecus, ib. ; 

 changes in uterus during, Chapter III., 

 passim ; in guinea-pig, 134 n. 

 (Estrum, see (Estrus 



(Estrus, 32 ; definition of, 33 ; effect of 

 lactation on, 69 ; effect of, on Bartho- 

 lin's glands, 51 ; in Carnivora, 92 ; 

 in man, 132 ; in ferret, 364 



Oleic acid in yolk of egg, 283 



Olein in milk, 594 



Omphaloidean placenta, 424 



Omphaloidean region in hedgehog, 480 



Omphaloidean syncytium of shrew, 482 



Oncidium, self-sterility of, 215 



Oocytes, number of, in human ovary, 636 ; 

 number of, in ovary of rat, ib. 



Oogenesis, 109, 115 sqq., 155, 165; in rabbit, 

 115; protobroque cells in, 116 ; deuto- 

 broque cells in, 116, 118; leptotenic 

 stage in, 116, 155 ; synaptenic stage in, 

 116 sq., 155 ; pachytenic stage in, 117, 

 155; diplotenic stage in, 117, 155; 

 dictyate stage in, 117, 155 



Oogonia, 115 



Oophorine, 355 



Oosperm, see Zygote 



Ophelia, parthenogenesis in, 284 



Ophryotricha puerilis, intersexuality in, 

 692 



Opossum, breeding season in, 36 ; cestrous 

 cycle in, ib. ; polyembrony in, 229 ; 

 yolk-sac in, 415 ; embryo of, 417 ; 

 period. of gestation of, ib. sq. 



Orca, placenta of, 442 



Oreas, placenta of, 432 



Organ of Giraldes, 71 



Organ of Rosenmiiller, 7 1 



Organ of Weber, 241 



Orgasm, 264 



Oriole in captivity, 629 



Ornithin, 304 



Ornithodelphia, 415 ; see Monotremata 



Orycteropus, placenta of, 409, 442 



Os penis in Carnivora and Rodentia, 256 



Osteomalacia, cause of, 298 ; effect of 

 ovariotomy on, 389 ; in puerperium, 

 549 



Ostrich, ovariotomy in, 344 ; fertility in, 

 630 



Otter, cestrous cycle in, 54 ; placenta of, 



448 



Ovalbumen in white of egg, 287 

 Ovarian extract, 391 ; causing heat, 362 

 Ovarian ovum, 404 

 Ovarian pregnancy, 137 

 Ovarian transplantation, 360 sq. 

 Ovarine, 355 



Ovariotomy, in deer, 340 ; in man, 340, 

 347 ; in fowl, 341 sqq. ; in Aves, ib. ; 

 in duck, 343 sqq. ; in ostrich, 344 ; 

 in rat, 346 ; in cow, ib. ; in rabbit, 

 347 sqq. ; in guinea-pig, ib. ; in 

 relation to menstruation, 360 sq. ; in 

 dog, 361 ; in sow, ib. ; and abortion, 

 366 ; during pregnancy in dog, 369 ; 

 during pregnancy in man, 370 ; during 

 pregnancy in pig, ib. ; during pregnancy 

 in rat, ib. ; during pregnancy in rabbit, 

 371 ; effect of, on uterine mucoga, 376 ; 

 effect of, on pituitary gland, 382 ; in 

 regard to colloid production, 385 ; 

 effect of, 387 ; in pig, 388 sq. ; effect 

 of, on osteomalacia, 389 ; effects of, in 

 dog, 391 ; influence of, on milk, 596 ; 

 and lactation, 598, 611, 622 ; effects of, 

 in fowl, 699 



Ovary, 70 sq., Chapter IV., passim ; 

 of cat, 109 ; development of, ib. sqq. ; 

 of dog, 1 10 ; structure of, ib. sq. ; 

 of rabbit, 111; of pig embryo, 112; 

 interstitial cells of, 142 n., 145, 147 ; 

 number of ova in, 155 ; lipoids in, 274 ; 

 cholesterin in, ib. sq. ; fat in, 275 ; 

 source of ichthulin in, 292 ; source of 

 phosphorised fats in, ib. ; as organ of 

 internal secretion, Chapter IX., passim ; 

 correlation between female characters 

 and, 340 ; transplantation of, in fowl, . 

 343 ; transplantation of, in guinea-pig, 

 346 ; interstitial cells of, 346, 386 n. ; 

 effect of Rontgen rays on human, 347 ; 

 in rabbit, 348 ; heteroplastic graft of, 

 350 sqq. ; homoplastic graft of, 351 sqq. : 

 compensating hypertrophy of, 357 sq. ; 

 interstitial cells of, during gestation, 

 376 ; effect of hysterectomy on, 377 ; 

 general conclusions regarding internal 

 secretion of, 386 sqq. hormones of, 577 ; 

 transplantation of, in guinea-pig, 620 ; 

 number of oocytes in human, 636 ; 

 number of oocytes in, of rat, ib. ; at 

 puberty, 713 



Oviduct, see Fallopian tube 

 Ovigenine, 355 

 Oviposition, in fire-bellied toad, 136 ; 



in fetid toad, ib. ; in toad, ib. 

 Ovis, formation of corpus luteum in, 145 

 Ovis ammon, cestrous cycle in, 39 

 Ovis argali, cestrous cycle in, 39 

 Ovis burrhel, cestrous cycle in, 39 

 Ovis canadensis, oastrous cycle in, 39 

 Ovis musimon, cestrous cycle in, 39 

 Ovis poli, cestrous cycle in, 39 

 Ovis tragelaphu*, cestrous cycle in, 39 



