106 Index 



Feeble-mindedness 49 



Fever 95 



Flagelatta 86 



Foot pounds 79, 83 



Function xi. 



Generations x., 45, 53, 66, 78 



Germ cells 89 



Germplasm 24, 25 



Goldsmith Maid 16 



Grandparents 44, 65 



Guinea pigs 92, 93 



Henslow 21 



Hybrids 90 



Idleness 23, 92 



Immunity 96, 101 



Improvements vi., viii., 55, 65 



Increased powers 15, 23 



Inheritance xi., 17, 64, 67, 93, 97 



Intelligence 62, 70, 83 



Ishmaels 52 



Jukes 53 



Kallikaks 50 



Kemble family 37 



Lamarck 38 



Learning 22 



Lee family 30 



Life 79 



Load 86, 91, 93 



Longevity 70 



Marriage customs 58, 60, 74 



Measles 98, 100 



Mendel vii. 



Mental power x., 22 



Mice x., 92 



Milk > 18 



