1580 



SUBJECT INDEX 



Pregnancy (conl.) 

 snakes (ront.) 



corpus hit cum and, 1059 

 hypcpliyscctouiy and. 253, 1059 

 ovariectomy and, 1059 

 somatotrophin levels, 980-981 

 spot 



Lebistes, 1070 

 Xiphophorus, 1064, 1070 

 tests, 986-988 

 ovarian hyperemia, 483 

 use of amphibians, 252-253 

 thyroid and, 979-980, 997-1000 

 toxemia 



aldosterone levels, 979 

 inanition and, 690 

 placental changes, 900, 902 

 urinary estrogen levels, 567, 964, 9()6 

 vaginal changes in monkey, 576 

 vitamin deficiencies and, 691-693 

 weight changes, 689 

 Xantusia, length, 1059 

 5-Pregnane-3-(^)-ol-20-one in pig testis, 332 

 Pregnanediol 



and inhibition of mitochondrial respiration, 660 

 excretion in pregnancy, hypophysectomv and, 



1006 

 peak of excretion in women, 534 

 progesterone metabolite, ()49 

 urinary, and blood level of progesterone, 582 

 Pregnanetriol, 17-hydroxv progesterone metal> 



olite, 649 ' ' 



Pregnant mare serum (see also entries under 

 Placenta, Placental gonadotrophins) 

 and follicular growth in birds, 1128 

 and testis, 336-337 

 assays using fowl, 1152 

 comparison with human chorionic gonadotro- 



phin, 982 

 levels during pregnancy, 965, 985 

 secretion by endometrial cups, 1007 

 Pregneninolone 



bisexual effects on Plati/poecilus, 1053 

 in pig testis, 332 

 A*-Pregneninolone 



and spermatogenesis, 345 

 testis and, 345 

 Pregnenolone and steroid biosynthesis, 644-647 

 Premaxillary tooth, salamanders, orchiectomy 



and, 1045 

 Preputial gland, 367 



7-dehydrocholesterol in, 387 

 Primates 



bulbo -urethral glands, type, 368 

 male accessory reproductive glands, 368 

 mating behavior, 1174 

 ovarian cycle, type, 498-499 

 ovulation, ablation of corpus luteum and, 506 

 sexual maturation in female, 503 

 social organization, 1242 

 testes, location, 309 

 Primordial germ cells 



alkaline phosphatase activity, 802 

 methods for identification, 802 

 Prinia gracilus 



incubation, ambient temperature and, 1295 

 nest-building 



during incubation, 1272 

 role of sexes, 1270 

 Proboscidea, male accessory reproductive glands, 



368 

 Procoagulase and coagulation of semen, 397 



Proctodeum 

 lizard, 1043 



Sceloporus, estrone and, 1068 

 Procyon lotor 



identification of genetic sex, 55 

 litter size, 961 

 pregnancy, length, 961 

 Progesterone (see also Corpus luteum. Gestagens) 

 action, augmentation by vitamin D2 , 689 

 and activity of enzymes, 652 

 and blastocyst growth, 859 

 and cervical dilation, 1012 

 and diuresis, 991 

 and endometrium 



in monkey, 578-579 



rabbit compared with monkey, 582 

 and erotic behavior in human male, 345 

 and estrus in rabbit, 1206 

 and follicular atresia in birds, 1121 

 and follicular growth, 456 

 and genital tract differentiation in Scijlinrhinits, 



1067 

 and hair growth, 1347 

 and hematopoiesis, 991 

 and histaminase production, 995 

 and hypophyseal gonadotrophin secretion, 271- 

 272' 



in fowl, 1150 



in rabbit, 1206 

 and implantation, 861 

 and incubation behavior, 1093, 1102, 1125, 1132, 



1293 1294, 1340, 1353 

 and intrasplenic ovarian grafts, 271 

 and lactation, ()0()-607, 614-616 

 and luteinizing hormone release, 272, 518 

 anil male accessory sex glands, 425-426 

 and mammary development, 596, 600-604 

 and menstruation, 578-589 

 and mitochondrial ATP activity, 660 

 and molting, 1121 



and myometrial contractions, 661, 732, 853-854 

 and nest-building, 1275, 1308, 1347, 1353 

 and ovarian functioning in birds, 1120, 1132-1133 

 and oviduct 



in birds, 1293 



in Oromastix, 1054 

 and ovulation, 260, 267-268, 271, 515-516, 518- 

 519, 521, 527-528, 531, 1005 



in birds, 1131-1133, 1136-1137 



in fowl, 1130-1133, 1150, 1277-1278 



neural mechanism, 1132-1133 

 and parturition, 1005, 1015 



in Lacerta, 1059 

 and pregnancy, 661, 1003-1005 

 and progestational reaction in rabbit, 582 

 and retrieving behavior in rats, 1316, 1317 

 and secretion of androgen by birds, 1105 

 and spermatogenesis 



in birds, 1105 



in man, 345 

 and steroid biosynthesis, 644-646 

 and termination of estrus, 1189, 1201 

 and tubal contractions, 732 

 and uterine carbonic anhydrase, 860, 997 

 and uterus in monkey, 565-567 

 and vaginal epithelium in monkey, 576 

 androgenicitv, 426 



assay methods, 473-474, 966, 971-972 

 biosynthesis, 644-646, 647 

 blood levels, 271, 475, 534, 558-582 

 cellular origin, 466-471 



compensation for vitamin A deficiency, 691 

 conversion to pregnane -3a: 20a -diol, 649 



