SUBJECT INDEX 



1603 



Testosterone (cont.) 



and syrinx differentiation, 121 



and t!>stis in Lr]>islvs. 100*) 



and v;is dctcrciis of M(i„ urnnlhus, 1069 



and vcsiculai- choline derivatives, 386 



biosynthesis, 333-334, 645-()4() 



conversion to A^-androstenedione, ()49 



conversion to estrogens, 143, 645-()47 



in mammalian testis, 332 



in spermatic vein of dog, 334 



in treatment of defective spermatogenesis, 804 



paradoxical effects in Oryzias, 1067 



plasma binding, 475-476 



propionate, and genital tract differentiation in 



Sci/linrlnniis, 1()C),5 

 relative androgenicit >■, 338-339 

 vitamin deticiencv and failure of liver inactiva- 

 tion in fowl, 1107-1108 

 Tcstuda 

 hermai)hn)ditisni, l()(l(i 

 oviduct, 1051 



pseudohermaphroditism, lOliO 

 testicular interstitial cells, seasonal changes, 

 1038 

 Testudo iberica, oviduct, estrone and, 1054 

 Testiido orbicularis, spermatogenesis, seasonal oc- 

 currence, 1037 

 Tetrahydrocortisol, cholesterol derivative, 644 

 Thaninophis 

 blood 



calcium levels, 1052 

 magnesium levels, 1052 

 ])rotein levels, 1052 

 corpus luteum, 1059 

 epididymis, seasonal changes, 1041 

 gestagens, in blood, 1059 

 gonads, development, 1062 

 ovoviviparity, 1056 

 pregnancy 



hypophysectomy and, 1059 

 ovariectomy and, 1059 

 sexual segment in metanephros, androgen and, 

 1047 

 Thaninophis elegans, sexual segment, seasonal 



secretion, 1041 

 Thaninophis radix 

 orchiectomy, 1045 



sexual segment, seasonal secretion, 1041 

 spermatogenesis, seasonal occurrence, 1037 

 Thaninophis sirlalis 



parturition, estrogen inhibition, lOtiO 

 sex differentiation 

 estradiol and, 1069 

 testosterone and, 1069 

 sperm storage in female, 1055, 1056 

 sexual segment, lack of seasonal activity, 1041 

 testis, interstitial cells, 1039 

 Thassophis, ovoviviparity, 1057 

 Thelytokous reproduction, 23 

 Thiamine deficiency 



and developmental mortality, 092 

 in pregnancy, estrogen-progesterone compensa- 

 tion, 692 

 llirijolhorus ludovicianus, nest-building, role of 



sexes, 1270 

 Thumb pads, Rana, orchiectomy and, 1045 

 Thymus, suckling and, 1328 

 Thyrotrophin 



bioassays using fowl, 1153 

 cellular origin, 183, 191 

 secretion 



fowl, interruption of poital vessels and, 1136 

 rat, cold and, 197 



Thyroid 



and androgen 

 metabolism, 668 

 production, 669 

 and atrophy of Mauthner's cells in frog, 1348 

 and behavior in man, 1174 

 and calcemia in birds, 1117 

 and development of central nervous elements, 



1348 

 and developmental mortality in rat, 998 

 and hypophyseal cytology, 180-181 

 and inhibition of transhydrogenase, 657 

 and lactation, 617-618 

 and lipemia in birds, 1117 

 an<l litter size, 609, 998-999 

 and mannnary gland development, 605 

 and mating behavior, 347, 1210-1213 

 and molting, 1 121 

 and nest -building 

 in ral)bit, 1307-1308 

 in rat, 1307, 1346 

 and ovarian follicular growth, 479-480 



in fowl, 1133 

 and ovarian functioning, 479-480, 668, 670 

 and ovarian responsiveness to gonadotrophin, 



480, 668 

 and oviducal development in birds, 1117 

 and parturition, 999-1000 

 and precocity in male fowl, 1108 

 and pregnancy, 979 980, 997-1000 



hvi)ei'volemia, 992 

 and' re])n)ducti()n, 997-1000 

 in male, 346-347 



birds, 1104-1105 

 interplay with nutritional factors, 070 

 range of tolerance, 480 

 and responsiveness of pigeon ovary to pregnant 



mare serum, 1134 

 and retrieving behavior, 1316, 1317 

 and running activity in rat, 1346 

 and sexual maturation in male birds, 1105 

 and s]jermatogenesis 

 in birds, 1105 

 in mannnals, 346-347 

 and testis functioning in mammals, 668-669, 



346-347 

 and tissue responsiveness 



to androgen in birds, 1104-1105 

 to estrogen, 1212, 1214 

 functioning 



estrogens and, 479 



hypo] )hy seal stalk transection and, 283 

 ovarian activity and, 478-479 

 pregnancy and, 204, 478-479 

 Lebistes, and intraovarian embryogenesis, 1057 

 Thyroxine 



and development of lid-closure reflex in frog, 



1348 

 and si)erm production, 669 

 and spermatogenesis, 6()9 



maximum i)resent in l)lood, dining pregnancy in 

 man, 964-965 

 Tilapia nalalensis, color changes, reproductive 



state, and, 1258 

 Tiligua, corpus luteum, 1059 

 Tinamidae, incubation patch, 1287 

 Tinea vulgaris, source of androgen, 1037 

 Tissue responsiveness 



to adrenal androgen, comparative, male and 



female prostate, 423 

 to adrenal corticoids, character of the soma and, 

 1185 



