SUBJECT INDEX 



1577 



Pigeon (cont.) 



incubation (cont.) 



behavior 



progesterone and, 1093 

 testosterone and, 1292, 1353 



by male, 1286 



pattern, 1284 



presence of eggs and, 1294 



temporal relation to egg laying, 1285 

 Leydig cells, hypophysectomy and, 1100 

 mating behavior of male, castration and, 1180 

 neurohyi)oph\'sis, blood sui)ply, 1099 

 ovarian follicular growth, 1273 



prolactin and, 1128 

 ovarian functioning, estrogen and, 1130 

 ovarian responsiveness 



to hypophyseal gonadotrophins cross-si)ecies 

 tests, 1126 



to pregnant mare serum, thyroxine and, 1134 

 ovary, androgenic stimulation, 1131 

 oviduct, ciliary currents, 732 

 ovulation 



nesting material and, 1281 



visual stimuli and, 277 

 j)rogesterone in blood, 1093 



progesterone secretion by testis, hypophysec- 

 tomy and, 1102 

 prolactin secretion, strain differences, 1354 

 seminiferous tubules, cholesterol in, 1093 

 social organization, 1242 

 sperm, structure, 1096 

 spermatogenesis, testosterone and, 1101 

 testis 



progesterone secretion, 1106 



prolactin and atrophy of, 1144 



size of right compared with left, 1089 

 Pineal body 

 fowl 



and hypophysis, 1103 



and sexual maturation, 1103 



and testis, 1103 

 mammals, and testis, 347-348 

 Pinocvtosis 



and" placental transmission, 948, 950 

 by nuclear mem])rane in yolk sac placenta, 920 

 in placental cells, role in absorption, 914 

 in placental syncytium, 894 

 in yolk sac placenta, 920 

 Pipa americana 



egg-laying behavior, 1048 

 transport of developing eggs, 1048 

 Pipefish 



genital tracts, development, 1060 

 transport of developing eggs bv males, 1047 

 Pipislrrlhis pipistrellus (see Bat) 

 Pituicytc, 224 225 

 Pituitary (see also Hypophysis) 



dwarfism and testis, 348 

 Placenta (see also Yolk sac placenta) 

 accreta, 905 

 acid phosphatase, distribution of, 928, 930, 932- 



933 

 ago changes, 903 

 alkaline phosphatase, 927-929, 932-933, 934-935 



distribution, 938-942 



fluctuation during pregnancy, 927-928 



relation to neutral mucopolysaccharide, 940 



role of, 938-940 

 and androgen synthesis, 647 

 and estrogen 



interconversion, 647 



synthesis, 647 

 and liver UNA during pregnancy, 690 



Placenta (cont.) 



and nitrogen balance, 690 



and ovarian functioning, 1008 



basal plate, at term, 904-905, 914-915, 920-921 



926 

 carbonic anhydrase in, 996 

 chorio-allantoic, 886 



chorion frondosum in man, 884-885, 892 

 chorionic gonadot roijhin, dist ril)uti()ii, 932 

 chorionic villi, ago diangos, SS(i ,S,S7, S90, 892- 

 893, 896, S9S 902, !)()6-9()7, 914-915 924- 

 925, 926 

 choriovitelline, 886 

 decidua 



action of trophoblast on, 905-906 



and histaminase formation, 995-996 

 decidual cells 



lipid droplets, 933 



ribonucleoprotein in, 937 

 development 



in man, 884-885, 890, 891-892, 894 



in monkev. 886-887, 891-892, 894 



of cytotrophoblast, 902-903 



of peripheral trophoblasts, 903 

 DPN in, ()47 

 endometrial cups, 937 



and i)rognant mare serum secretion, 986, 1007 

 fetal giant colls in rat, 912-913 

 fetal -maternal junction, 896, 900-901, 909-910 



916, 926, 928-929, 932-933, 1081 

 fibrinoid in, 942-943 



functional replacement of ovary, 970, 1006 

 gestation age and, 916-917 

 glycogen 



distribution, 926-927 



fluctuation during pregnancy, 926-927 

 gona(lotr<)i)liic function, 260-2(31 

 Grossor's classification, critique, 948 

 "hematomas,' '.109 



histochemical differentiation of "mucoid de- 

 generation," 900 

 hormones of, 604 



A-4-3-ketopregnene-20-a-ol content, 647 

 labyrinthine trophoblast, site of steroid synthe- 

 sis, 923 

 Langhans cells 



functional significance, 936-937 



source of human chorionic gonadotrophin, 

 1007 

 lipid droplets 



age changes, 890, 892-893, 896, 899 



fluctuations during pregnancy, 930 

 lipid transport, 942 

 metachromasia, 927 

 neutral mucopolysaccharide, relation to alkaline 



phosphatase, 940 

 peripheral cytotrophoblast, 884-887, 902-903 

 peripheral trophoblasts 



age changes, 903 



and gonadotrophin production, 931-937 



distinction from Langhans cells, 904 



origin, 93(;-937 



proteolytic .-let ivity. 905-906 

 pinocytosis in, .S94, !)]4 



saliva-insoluble carbohydrates, 927, 932-933 

 secretion 



of ACTH, 1006 



of estrogen, 117, 1008 



of luteinizing hormone, 1006 



of progesterone, 968, 972-973, 1006, 1008 

 septae placentae, at term, 904-905, 920-921, 926 

 source 



of ACTH, 1007 



of corticoids, 1007 



