General Index 



Dogs, 33, 49, 152, 153, 186 

 Dolphins, 47, 53 

 Domestic animals, 42, 45 

 Dove, 50 

 Ducks, wild, 132 



Eagle, 50 



Ear disease, in old rats, 24 



Echidna, 47 



Echinoderms, 10, 58 



Eels, 53, 54, 70, 112 



Egg production, in fowls, 26, 63 



Eggs, of Daphnia, 94 ff., 127 



fowls', hatchability, 124 



parabiosis between, 129 



of rotifers, determination in, 85 ff. 

 Elephant, 34, 46 

 Elasticity, of skin, 26 

 Emu, 50 

 Endocrines 



cells, turnover of, 167 



mitosis in, 167 



and senescence, 7, 171 ff. 



senile, histology, 167-8 



senile, response to stimuli, 1 74 

 Endomixis, 116-17 

 Energy, rate of use, 10 



'growth', nature of, 158 



requirements, human, 10 

 England and Wales, centenarians, 



62 

 Entelechy, 8, 190 

 Enteritis, in old rats, 24 

 Enzymes, expendable, 35, 163-4 



haemoprotein, turnover, 164 



renewal in cells, 163-4, 166 

 Ephemeroptera, 57 

 Epigenetics, 165 

 Epiphyseal union, 185 

 Equilibria 



in cell-replacement, 37, 157 ff. 



hormonal, maintenance, 175 

 Equines, 46 

 Erythrocytes, 166 

 Eskimos, 134 



Evolution of senescence, 9, 10, 31, 

 32, 37 ff., 161, 190, 191 



Exhaustion, reproductive, 2, 69, 99, 



132 

 Experience, selective value, 13, 111 

 Experimental material 



choice, 136-7 



supply of, 199 

 Explosives, ageing of, 34 



Family, human, development, 38 

 Fat-body, deterioration, 98, 101 

 'Ferment, life', 164 

 Fingernails, growth of, 156 

 Fish, 11, 12, 19, 25, 31, 132, 133 



growth pattern, 66-77, 154, 159 



hormone action in, 161, 182 



life-span, 53-4 



life-table, Lebistes, 75 



reproductive exhaustion, 2, 70 

 Fitness, Darwinian, 121, 123 

 Flowering, death after, 2 

 Follicle-stimulating hormone, 81 

 Force of mortality, 17, 18, 25 

 Fowls, 26, 43, 63, 129, 132 

 Frogs, 52, 64, 67, 182 

 Fruit-fly, 20, 42, 124-5, 130, 143 



Galago, 180 

 Gall-fly, 18 

 Gastropods, 43, 104 



fresh-water, 112 



marine, 105-6 

 Genes, and catalysis, 164-5 

 Genetics (genetic) 



of ciliate clones, 116 ff. 



control of life-span, 121 ff. 



of 'June Yellows', 120 



timing of puberty, 1 80 



of vigour, 127 ff. 

 Germ-cells, 163 

 Gerontology, 3, 192, 194 

 Gerrids, 112 

 Gibbon, 47 

 Gigantism 



in castrate males, 185 



in Hydrobia, 104 

 Goat, 48 

 Goldfinch, 110 



247 



