262 



Subject Index 



Pancreas, mitochondria of, 101 

 Pitressin, effects of, on rat foetus, 18 

 producing haemorrhage in foetus, 

 18 

 Pituitary, and embiyonic develop- 

 ment, 162-175 

 function, age factor in, 20-23 

 Placenta, biochemical evidence of 



ageing in, 129-147 

 cytology of, 106, 107 

 effects of hormones on, 141, 142 

 effect of insulin on, 141 

 electron microscopy of, 107 

 enzymatic reactions of, 107, 108 

 fructose secretion by, 120-122 

 glucose metabolism in, 135-137 

 glycogen content and metabolism 



of, 121-123, 133, 134 

 histochemistry of, 106-109 

 influence of progesterone on, 123, 



126 

 length of gestation and, 110, 111 

 metabolic ''ageing" of, 142, 143 

 morphological aspects of ageing in, 



105-117 

 of goat, 155-158 



oxygen consumption of, 131, 132 

 pathological ageing of, 100, 111, 112 

 permeability of, 109, 118, 119 

 postmaturity in relation to, 112, 



113 

 premature ageing of, 111, 112 

 production of carbohydrates in, 120 

 pyruvic and lactic acid metabolism 



in, 137-141 

 regression with age, 109, 111 

 relation to foetal liver, 108, 109 

 response to oestrogens, 142 

 toxaemias of pregnancy in relation 



to, 111, 112 

 uptake of radioactive potassium 



by, in rat and goat, 148-160 

 weight of, in relation to foetal 



weight, 120, 121 

 Placental barrier, permeability of, 



109, 118, 119 

 function, changes with age, 118-128 



chronological changes in, 118-128 

 structures, definitive, 106, 109, 110 



transient, 105, 106 

 villi in goat, 155-158 

 Placentome, development of, in 



goat, 155-158 

 potassium content of, in goat, 149- 



154 



Potassium activity of tissues in 



pregnant rat and goat, 150-154 



relative (R.P.A.), of tissues in 



pregnant rat and goat, 151-154 



content of placentome in goat, 149— 



154 

 radioactive (see Radioactive potas- 

 sium) 

 Pregnancy, effect on life-span of 



corpus luteum, 70—83 

 Progesterone, influence on placenta, 



123, 126 

 Prostate, testicular control of, in 



foetus, 19, 20 

 Prostate glands, development of, in 

 cultured reproductive tracts, 

 9, 10 

 female, in rat, 14, 15 

 normal development of, in rat, 5 

 role of endogenous sex hormones 

 in development of, 8, 9 

 Protein metabolism and cell respir- 

 ation in ageing tissues, 207, 208 

 Pyruvic acid, metabolism in pla- 

 centa, 137-141 



Rabbit, foetus, hypophysis of, 21 

 sex differentiation in, 3, 11, 13 

 Radioactive potassium, distribu- 

 tion of, during pregnancy in 

 rat and goat, 148-154 

 uptake of, by uterus and placenta 

 in rat and goat, 148-160 

 Radioactive substances, distribu- 

 tion of, during pregnancy in rat and 

 goat, 148-154 

 Rat, foetal, decapitation in, 12 



development of, after adminis- 

 tration of growth hormone or 

 cortisone to the mother, 161- 

 175 

 hypophysectomy in, 12 

 organ culture studies of repro- 

 ductive tract of, 3-17 

 history and fate of redundant 



follicles in, 59-68 

 sex differentiation in, 3-17 

 uptake of radioactive potassium by 

 uterus and placenta in, 148-160 

 Red blood cells, ageing in, 233-245 

 cold storage of, 215, 216, 236, 



237 

 diffusion of components of> 

 216, 217 



