140 



IXDEX 



Maize, 6-5, 66 

 Man. Heredity in, 99-115 

 Marsh-marigold, 15 

 Maternal Impression, 97 

 Mendelian Heredity, 52-89 



„ ,, in Man, 100, 



102-107 

 Mendel's Experiments, 53, 54 

 Mental and Moral Characters, 49 

 Mid-parent, 40 

 Mode, 10, 34 

 Mouse, 74 

 Mulatto, 108 

 Mutation, 22 



Natural Selection, 8, 89, 117 

 Nettleship, E., 104, 106 

 Night-blindness, 104 

 Nucleus, 121, 126 

 Organic Stability, 24 

 Pangenesis, 118 

 Pearson, K., 32, 41 

 Peas, 54 

 Pigeons, 66 



Primula, 66, 79, 81-83 

 Protoplasm, 3 

 Punnett, E. C, 70 

 ' Pure Lines,' 44, 87 

 Babbit, 74, 79, 87 

 Eat, 72, 79 



Eecessive Characters, 56 

 Eegression, 35 

 Eetinitis pigmentosa, 105 

 Ee version, 74, 76 

 Eust in Wheat, 64 

 Schuster, E., 49, 101 

 Sea-urchin eggs, 126, 127 

 Seed-colour, 66 



Segregation, 58 



Sex, 84, 103, 106 



Sheep, 84 



Silkworms, 94 



Skew Curves, 15 

 ,, Correlation, 39 



Skin-colour, 108 



Social Problems, 112 



Standfuss, M., 27 



Statistical Studv of Variation, 32 



Stature, 10, 34", 37 



Sterility, 06, 110 



Stocks, 66, 80 



Sweet-pea, 54, 66, 76 



Telegony, 96 



Temperature, effects of, 25, 27, 28 



Tortoiseshell Cat, 84 



Tower, W. L., 28 



Tuberculosis, 25 



Twins, 30, 111 



Variation, 2, 5, 7 



Causes of, 8, 23-31, 

 123 



Variation, Continuous and Dis- 

 continuous, 9-12, 17-19, 22, 88 



Variation, Curves illustrating, 

 11-17 



Variation, induced by crossing, 

 29 



Veies, H. de, 19 



Wallace, A. E,, 8 



Weismann, A., 20, 23, 119-125 



Weldon, W. F. E., 33 



Wheat, 64, 66 



Wheldale, Muriel, 77 



Yule, G. U., 42 



Zygote, 58 



CAMBRIDGE : PRINTED BY JOHN CLAY, M.A. AT THE UNIVERSITY PRESS 



