756 



SUBJECT INDEX 



Superpurgation as cause of abortion, 654 



Suprarenal gland, in rabbit, 385 ; cor- 

 relation of, with sexual organs, ib. sq. ; 

 effect of castration on, 386 



Swan, longevity in, 722 



Sweat glands, 587 



Sweden, sex-ratio in, 687 



Swift, breeding season in, 23 



Swiftlet, see CollornUa 



" Sympexions "' of Robin, 298 



Symplasma, 418, 445 ; in rabbit, 457 ; in 

 dog, ib. : in mouse, 467 ; in guinea-pig, 

 473 ; in man, 502 



Synapsis in Lygoeus bicrucis, 673 



Synaptenic stage of ocigenesis, 116 sq., 155 



Syncytium, 397 sq. ; striated border of, 

 397 sq. : function of, 398 sq. ; origin of, 

 402 ; of cat, 444 sq. ; of dog, ib. ; of 

 man, 494 sq., 502 



Syphilis as cause of sterility, 645 



Tadpoles, effect of pineal extract on, 384 



Talcpporia tubulosa, sex-determination in, 



671 sq. ; dimorphism of ova of, 672 



Talpa, clitoris in, 261 



Tamandua, placenta of, 442 



Tanager, phenomena associated with 

 breeding in. 27 



Tarsiuft, formation of corpus luteum in, 

 139, 145: "Haftstiel" of, 423; 

 placenta of, 440 ; placental blood 

 formation in, 518 ; puerperium in, 

 584 



Tarsius spectrum, osstrous cycle in, 56 ; 

 menstrual cycle in, 91 ; ovulation and 

 menstruation in, 132 



" Tata-eggwhite " in white of egg, 287 



Taurin. 551 



Taittogolabrus. life cycle in, 227 



Teat, 587 : of Carnivora, 587 ; of Ungu- 

 late, ib. ; of man, ib. ; of Primates, 

 ih. ; of Rodents, ib. ; of Marsupials, 

 ib. ; of Cetacea, ib. ; size of litter in 

 relation to number of, 624 



Telegony, 207 sq. ; in Lord Morton's 

 quagga, 208 : experiments on, ib. 



Teleosts, breeding season in. 15 ; corpus 

 luteum in, 146 



Temperature in puerperium, 583 



Temporal gland of elephant, i'.").'! 



Tenrec, see Centetes ecaudatti* 



Tenthredinidse, 126 n. 



Tcrgipes, breeding season in, 14 



Termites. SON -determination in, (><;.""> 



Testis, Chapter V.. /^.w///< : structure of, 

 !">!> >'/'/.: tunica vaginalis of, 159; 

 mediastinum of, ib. sq. ; seminiferous 

 tubules of. KM) ; reta testis. ib. ; 

 interstitial cells of, ib. sq., 163. 335 sq, : 

 tunica allmginea of, ib., 161 ; descent 

 of, 164 n., 165 : correlation of male 

 characters with. 320 fqq. ; and 



secondary sexual characters, 321 sqq. ; 

 interstitial cells of, in guinea-pig, 330 : 

 effect of Rontgen rays on, ib. ; of 

 woodchuck, 331 ; transplantation of, ib. 

 sqq. . compensating hypertrophy in, 

 338 sq. ; relation of thymus to, 379 ; 

 conclusions regarding internal secretion 

 of, 386 sqq, 



Tetanus uteri, 563 



Tetany, 385 



Tethelin as prolonging life, 712 



Tetraceros,. placenta of, 432 



Tetrad, 125 n. 



Tetronerythrin, 294 sq. 



Theca ex'terna, 121 ; of dog, 110 



Theca interna, 121 ; of dog, 110 



Thelyplasm, 690 



Thymectomy, in guinea-pig, 379 sq. ; in 

 rabbit, 380 ; in fowl, 380 ; in dog, ib. 



Thymine, 308 sq. 



Thymus, relation of, to testes, 379 sq. ; 

 effect of castration on, 379 



Thyroid gland, relation of, to sexual 

 organs, 384 



Thyroidectomy, 385 



Tiger, period of gestation in, 53 



Timor pony, cestrous cycle in, 46 



Toad, breeding season in, 18 ; oviposition 

 in, 135 ; ferment of gonads in, 318 ; 

 sex-determination in, 669. See also 

 Foetid toad and Fire-bellied toad 



Todas, sex-ratio among, 662 



Tortoise, phenomena associated with 

 breeding in, 28 ; longevity in, 722 



Toxaemias of pregnancy, 392, 533 sq., 546 



" Trager," 468 



Transplantation, of ova, 209 ; ovaries, ib. 



Traumatisms, 375 



Tree-frog, breeding season in, 18 



Trichosurus, breeding habit of, 67 



Trichosurus vulpecula, breeding season in, 

 36 



Triplets in man, 624 



Triton, spermatozoa of, 168 



Triton alpestris, hybridisation in, 210 ; 

 sex-reversal in, 693 



Triton waltlii, breeding season in, 20 



Tropidonatus, egg-membrane in, 289 



Trophoblast, 402, 405, 407, 409 sq., 508 

 sq. ; of mouse, 422 ; of rat, ib. of 

 horse, 429 ; of pig, 428 ; inter-cotyle- 

 donary, in cow, 432 ; in ruminants, 

 439 sq. ; of sheep, 464 ; absorption 

 of haemoglobin by, ib. ; of beaver, 476 ; 

 of hedgehog, ib. sqq. ; of shrew, 481 

 sq. ; of Tupaia javanica, 485 sq. ; 

 of bat, 487, 489 ; of Primates, 490 ; 

 of Semnopitheciis nasicus, 491 ; of 

 man, 494, 496 sq., 499 



Trophocyst of mole, 484 sq. 

 Trophosphere of hedgehog, 478 

 Trophospongia, of hedgehog, 478 sq. ; 



of Tupaia javanica. 486 

 Trophoblastic activity, nature of, 509 sqq. 



" Trypanblau," see Trypan blue 



