250 



Subject Index 



Calcium content of elastin, 97, 98, 

 102, 103, 104, 105 



excretion, 124 



metabolism in old acre, 109-122 

 in rats, 111-114, 124, 125 

 in senile osteoporosis, 123 

 sex hormones on, 123 

 Caloric requirements of old age, 



206, 207 

 Cancer, geographical distribution, 24 



incidence in aged, 18-22, 25, 26 



of skin, 53 



in Swiss centenarians, 16 

 Carbon monoxide studies of lung 



function, 64, 65, 66 

 Carcinoma, see Cancer 

 Carp, usefulness in ageing research, 



177 

 Caviar lesions, 84, 86 

 Cell pigmentation, 53 

 Cells, ageing of, biochemical differ- 

 ences, 54 



low temperature preservation, 162- 

 170, 171 



nutrition on life-span, 191, 192 

 Centenarians, 16, 17, 25, 26 



arteriosclerosis in, 16, 25 



mentality, 25 



Swiss, pathology, 16, 17 

 Cerebral changes with age, 35, 36, 49 



function, measurement, 51 

 Cherry angiomata, 82, 83, 84, 86 

 Children, overnutrition of as cause 



of ageing, 194-199 

 Cholesterol content of aortic mem- 

 brane, 74, 78 

 of elastin, 97, 98 



metabolism in arteriosclerosis, 89, 

 90 

 Chronic bronchitis and emphysema 



65, 66 

 Cladocera, 30 



Cockroach, usefulness in ageing re- 

 search, 175 

 Collagen in skin, 106, 107, 108 

 Collagen tissue, structure, 88, 103, 



104 

 Compensatory adjustment in age, 



25, 27, 41, 42, 43, 46, 47 

 Connective tissue permeability, 69, 



74, 75 

 Coronary disease in Swiss cente- 

 narians, 16, 17 

 Cortin excretion in aged schizo- 

 phrenics, 223-236 



Cough, chronic, and emphysema, 

 65, 66 



Creatinine excretion in aged schizo- 

 phrenics, 221, 236, 237 



Creative achievement of aged, 39, 

 40, 50, 51 



Cytological tests of ageing, 52, 53 



Death rate, formula, 8 



Deer, usefulness in ageing research, 



205-206 

 Definition of ageing, 4-14, 55, 56, 57, 

 242, 243, 244, 245 



of normal, 24 



of senescence, 4-14, 31 

 Dementia, senile, 35, 36, 44, 45, 46, 



214 

 De Morgan's spot, 82-84, 86 

 Diet {see also Nutrition) 



effect on maturation, 30 

 Diffusion coefficients of solutes for 



membranes, 69-75, 76, 77, 78 

 Digestive disease, incidence in 



aged, 18, 19, 20 

 Diurnal variation in aged schizo- 

 phrenics, 236, 237 

 Dog, usefulness in ageing research, 



182 

 Drosophila, life-span, 238-241 



Eclampsia, 205 

 Eggs, restriction in diet, 205 

 Elastase, 98-103, 106, 107, 108 

 in pancreas, 99, 108 

 purihcation, 107 

 Elastic recoil of lungs, 60, 61 

 Elastic tissue in arteriosclerosis, 88- 

 90, 98 

 changes with age, 24 

 metabolism, 100 

 in skin, 53, 105-107 

 structure, 88, 98, 103, 104 

 Elastin, amino acid composition, 

 94-6, 104 

 calcium content, 97, 98, 102, 103, 



104, 105 

 carbohydrate content, 104 

 cholesterol content, 97, 98 

 content of aorta, 92-94 



of pulmonary artery, 92-94 



preparation, 90-91, 104 



Elastoid degeneration of skin, 53 



Elastosis, senile, 101-103, 106, 108 



Electrolyte excretion in aged 



schizophrenics, 223-236, 237 



