Subject Index 



201 



Laboratory mouse, lifespan, 9 

 Latitudinal differences in ageing 



patterns, 26-27 

 Learning ability, animal, G2, 04-65 



human, 175-180 

 Lebistes, vital statistics, 15-10 



survival curves, 30-31 

 Life expectancy of Africans, esti- 

 mated, 105 

 Liver disease in Africans, 104-114, 



145, 188-190 

 Lizards, parasitic infection in, 33-34, 

 36 



(see also Sceloporus) 

 Longevity, and metabolism, 9, 23- 

 28 



gene-specific basis, 141-142, 144- 

 145 



longitudinal twin data, 137-142 



sex difference in, 30 



species difference in, 12-15 

 Longitudinal studies, 95, 158, 



163-164, 172-173, 174, 187 

 Lymantria dispar, ageing pattern, 25 



Meriones libycus, effect of brushing 



gingival epithelium, 51, 57 

 Metabolism, relation to longevity, 



9, 23-28 

 Metacollagen, 103 

 Methylcholanthrene, and lung 



cancer, 106 

 Micromys , lifespan, 10 

 Microtus, lifespan, 10 

 Miniopterus schreibersi, longevity, 27 

 Moina macrocopa, ageing patterns, 



24, 25 

 Molecular interchange in tissue, 



47-50, 67 

 Molluscs, ageing patterns, 25 

 Mortality, as measure of ageing, 6, 



8-17 

 Motivation, human, 154-156, 185, 



186-187 

 Mouflon (see Cvis) 

 Muntiacus, survival curves, 12-13 

 Mus, lifespan, 9 

 Mutation in somatic cells, 43-44, 45 



of homeostats, 43, 44 



of plasmagenes, 43 



Natrix natrix (see snakes) 

 Nilghaie (see Boselaphus) 

 Nitrogen mustards, carcinogenic 

 action, 68 



Normal, definition, 74, 94, 190-191 

 Nuclear genes, relationship to 



macromolecules, 47 

 Nuclear transfer, 43, 46 

 Nutrition, and ageing patterns, 

 34-35, 36 

 and disease in Africans, 104-114, 



145, 188-190 

 and mental disturbances, 145 

 and metabolism of invertebrates, 



24-25 

 animal results applied to Man, 

 192-193 

 Nutritional status, human, result 

 of changes in, 189-190 



Occupation, effect on performance, 



159-160 

 Occupational skill, effect on per- 

 formance, 160-161 

 Ovaries, effect of irradiation, 127 

 transplantation of, 116, 122-123, 

 126, 129 

 Ovis, survival curves, 12-13, 14, 15 

 Oxygen consumption, and cardiac 

 output, 88 

 of the brain, 147 

 pressure, and adaptation, 64, 65 



Parabiosis, 116, 124, 127-129, 130 

 Paramecium, ageing of clones in, 16 

 Parasitic infection in dogs, 32-33, 

 102 

 in lizards, 33-34, 36 

 in snakes, 33-34 

 Parasitic infestation in mice, con- 

 trol, 117-118 

 Perognathus, lifespan, 9 

 Peromyscus, lifespan, 9 

 Pick's disease, 134, 135, 136, 



143-144, 146 

 Pigments in ageing cells, 44 

 Pilchards (see Clupea pilchardus) 

 Plasma proteins, changes, in liver 



disease, 112-113 

 Population, sampling methods, 73- 

 79, 81 

 sampling problems, 94-96, 156-159 

 surveys, cross-sectional, 158-159, 

 171-172, 173, 174, 179, 186 

 horizontal, 94-95 

 longitudinal, 95, 158, 163-164, 

 172-173, 174, 187 

 Pseudopregnancy, in inbred strains, 

 117, 126, 129-130 



