42 



Cumulative Subject Index 



Roach, lifespan of, 5, 222 



Rockfish, lifespan of, 5, 220 



Rodents, ageing in, 3, 9-10, 11, 12-13 



Rosy tetra, lifespan of, 5, 224 



Rubner's theory of ageing, 5, 125-126, 128 



Rudder fish, lifespan of, 5, 221 



Sailfish, lifespan and size of, 5, 154 

 Saliva, bicarbonate in, 4, 63, 64, 65, 74, 75, 

 83-88 



sodium in, 4, 62-63, 65 66, 69, 71, 83- 

 88 



sodium/potassium ratios in, 4, 94 



urea in, 4, 67-69, 75 

 Salivary glands, in bees, 5, 233, 235, 237, 



238, 239 

 Sahnon, fecundity of, 5, 192, 197-198 



growth of, 5, 156, 157, 158, 160-166 



lifespan of, 5, 150, 152, 160-166, 222 



mortality rates of, 5, 145, 166 



natural death in, 5, 174 



relation of size and maturity, 5, 172 



reproduction in, 5, 179 



size of, 5, 150, 152 

 Salmo gairdneri, growth rates of, 5, 182 

 Salmo salar, fecundity in, 5, 197-198 

 Svlmonoidei, lifespan and size of, 5, 1 50 



lifespan and growth of, 5, 161-166 

 Sahelinus alpinus, lifespan of, 5, 147 

 Sampling, 3, 74, 77, 79, 81, 171-172, 174, 



183 

 Sand dab, lifespan and size of, 5, 148 

 Sardina pilchardis, effect of environment 



on, 5, 168 

 Sardines, eflfect of environment on, 5, 168 

 Sanger, lifespan and size of, 5, 1 54 

 Scandinavians, lifespan of, 5, 21-26 

 Scar tissue, collagen in, 3, 70 

 Scat, lifespan of, 5, 221 

 Sceloporus, 3, 36, 27 



Schizophrenics, adrenal cortex activity in, 

 1, 219-238 



cortin excretion in elderly, 1, 221-222, 

 223-236 



creatinine excretion in elderly, 1, 221, 

 222, 223-236 



effect of ACTH on, 1, 229 



17-ketosteroid excretion in elderly, 1, 

 221-222, 223-236 



phosphate excretion in elderly, 1, 221- 

 222, 223-236 



potassium excretion in elderly, 1, 221- 

 222, 223-236 



sodium excretion in elderly, 1, 221-222, 

 223-236 



uric acid excretion in elderly, 1, 221- 

 222, 223-236 

 Scombroidei, lifespan and size of, 5, 1 54 

 Sea anemone, 1, 244 

 Sea horse, lifespan of, 5, 147 



lifespan and size of, 5, 154 

 Seal, oogenesis in, 2, 37 

 "Second childhood", 1, 34 

 Seeds, ageing of, 2, 211 



Seminal vesicles, normal development of, 



2, 5-6, 8-9, 10 

 Senescence, {see also Ageing) 



definition and measurement of, 1, 4-15, 

 31 

 "Senile death", in fish, 5, 189 

 Senile elastosis, 1, 101-103, 106-108 

 Serine, in elastin, 1, 96 

 Serotonin metabolism, 3, 145, 146 

 Sex differences, in body water, 4, 107-1 10, 

 113 



in growth offish, 5, 159 



in lifespan, 3, 30 



in mortality among fish, 5, 145, 166-167 



in reactions to environment in fish, 5, 

 178 

 Sex distribution, in emphysema, 1, 68 

 Sex organs, changes in due to age in fish, 

 5,218 



in fish, 5, 229 



relationship to body weight in fish, 5, 

 193-196 

 Sexual maturity, age of, 1, 202-203 



and lifespan, 1, 29, 30 



effect of diet, 5, 84-85 



infish, 5, 170-171 

 Shad, fecundity of, 5, 191-192 

 Shark, lifespan of, 5, 220 

 Sheep, erythrocytes, 4, 200-203, 204, 206 



in research on ageing, 1, 182 



lifespan of, 3, 12, 13, 14, 15, 30; 5, 91-94 



placenta in, 2, 126 

 Sheepshead, lifespan of, 5, 221 

 Shrews, 3, 28 



lifespan of, 5, 97 

 Siderosis, 3, 107-112, 188, 189 

 Siluroidei, lifespan and size of, 5, 154 

 Size, effect on lifespan, 5, 147-159 

 Skeleton, ageing of, 1, 109-125 

 Skill, effect on performance, 3, 160-161 



variations with age, 1, 209-218 

 Skin, age changes in, 1, 53 ; 3, 96 



ectopic flexure lines of, 1, 12-13 



elastic tissue in, 1, 100-102, 105, 106, 

 107, 108 



elastic tissue of, ageing of, 1, 88-108 



temperature of, age changes in, 3, 80-84 



vascular lesions of, incidence of in old 

 age, 1, 80-87 



water absorption by, 4, 100-101 

 Skipjack, metabolism of, 5, 170 

 Smelt, lifespan of, 5, 147 



lifespan and size of, 5, 150 

 Snakes, fertility of, 3, 21, 22 

 Snake-head, lifespan of, 5, 224 

 Snapper, lifespan of, 5, 221 

 Social adjustment, 3, 175 

 Sodium, and adrenal function, 4, 166 



deficiency of {see also Hyponatraemia) 

 causing hyponatraemia, 4, 44-45 



effect of ACTH and cortisone, 4, 176, 

 177, 178 



effect of protein intake on, 4, 121, 126, 

 132 



