SUBJECT INDEX 



1519 



Atnbystoma (cont.) 

 Mtillerian ducts 



development, androgen and, 113 

 estrogen and, 112 

 sex differentiation, inductor substances com- 

 pared with gonadal hormont's, 149 

 Auihi/stoDio jcJferftd/ndNinn, gonad transformation 



following heteroplastic parabiosis, 89 

 Anihystoma maculntuni, gonad transformation fol- 

 lowing heteroplastic parabiosis, 89 

 Ambystoma tigrinum, gonad transformation fol- 

 lowing heteroplastic parabiosis, 89 

 Amenorrhea 



inanition and, 683 



in monkey, vaginal desquamation, 500-501 

 morphine and, 526 



progesterone and termination of, 579 

 ^4 mi a 



genital tracts, development, 1060 

 male skin coloration, castration and, 1044 

 Amia calva, female skin coloration, ovariectomv 



and, 1052 

 Amino acids 



and reproduction in female, 684 

 in male accessory sex glands, 389-390 

 Amino acid-activating enzymes, estrogen and, 654 

 Amino groups of proteins, histochemical differen- 

 tiation, 891 

 Aminoguanidine, toxicity in pregnant rat, 996 

 Amino sugars in semen, 385 

 Amphibia 



breeding season, rainfall and, 276 

 chromosome pattern, 44-45 

 cloacal glands, sex dimorphism in, 121 

 corpus luteum, 1058 

 digametic females, 7 

 gonad 

 bisexual organization in larva, 83-84 

 differentiation, hypophysis and, 132 

 transformation, 86-95 

 hypophyseal cytology, basophils, 188 

 hypoi^hyseal gonadal relations, 252-253 

 beginning of, in larvae, 132 

 cross -species tests, 252, 255 

 hypophyseal hormones, prolactin, 254 

 hypothalamic-neurohypophyseal tracts, 223 

 kidneys, accessory reproductive function, 377 

 larval gonads, endocrine activity, 143 

 male genital tract structure, 1039-1040 

 mating behavior, 1174, 1186 

 Aliillerian duct 



castration and, 114 

 development, 111-112 

 estrogens and, 112 

 neurosecretion, 225 



orchiectomy and male secondary sex charac- 

 ters, 1044-1045 

 ovary 



estrogen content, 1050 

 smooth muscles in, 1049 

 ovoviviparity, 1056 

 ovulation, mechanism of, 1049 

 ovum 



biochemical components, 810 

 cytologic components, 810 

 polyploid types, 45 

 responses to estrogen, 1054 

 sex differentiation 



constitutional factors and, 137 

 gonad graft experiments, 80-81 

 gonadal hormones and, 135 

 hormone experiments, 82 

 parabiotic experiments, 79, 89 

 sex reversal, retention of genotype, 44-45 



Amphibia (cont.) 



source of androgen, 1038 

 testis 



feminizing action of androgen, 142 

 structure, 1038 

 transport of ova, 1051 

 viviparity, 1057-1058 

 Wolffian duct development. 111 



androgen and, 120 

 ZZ, WZ, WW genotypes, 46 

 Amphibolurus 



corpus luteum, 1059 

 oviparity, 105() 

 pseudohermaphroditism , 1066 

 Amphigonopterus, sperm storage in female, 1055 

 Amphisbaena, oviducts, specialization for ovovivi- 

 parity, 1052 

 Amplexus, androgen and, in frogs, 1044, 1046 

 Ampullary glands 

 amino acids in, 389 

 bull, inorganic ion content, 720 

 citric acid secretion, 388 

 embryonic origin, 366-367 

 ergothioneine in, 385 

 horse, inositol secretion, 385 

 occurrence, 368, 376 

 Anablepidae 



intraovarian embryogenesis, 1057 

 ovary, adaptation for food-absorption, 1057 

 pseudoplacenta, 1057 

 viviparity, 1057 

 Anancephalia, chromosome idiogram, 65 

 Anas acuta, ovarian development, captivity and, 



1143 

 Anas platyrhynchos 

 eclipse molt, 1102 

 male feathering, 1119 

 nest-building, temporal relation to copulation, 



1271 

 ovarian functioning, estrogen and, 1130 

 ovary, development of assymetry, 1111 

 plumage of drake, absence of estrogen and, 1091 

 sperm, 1096 

 testis 



adrenalectomy and, 1103 



hypothalamic lesions and seasonal develop- 

 ment, 1135 

 Anatidae 

 egg-laying pattern, 1277 

 incubation patch, 1287 

 parental behavior 



role of the sexes, 1299 

 specificity, 1336-1337 

 precocial young, 1298 

 Androgen (see also Testosterone) 



actions in amphibians, 1038, 1046-1047 

 actions in fish, 1045-1046 

 and abdominal glands in amphibia, 1047 

 and acid phosphatase 

 in coagulating gland, 413 

 in prostate, 390-391, 402 

 in seminal vesicle, 409-410 

 and adrenal size in birds, 1104 

 and aggressive behavior, 1254-1255 

 by heifers, 1197 

 in fowl, 1243, 1247, 1258-1259 

 and alkaline phosphatase 

 in coagulating gland, 413 

 in male accessory reproductive glands, 391 

 in prostate, 402, '406, 411-412 

 in seminal vesicles, 409-410, 415 

 and amino acids in semen, 389 

 and amount of mucopolysaccharide in combs, 

 (^59 



