INDEX 



231 



Erythrocytes, 80, 99 



Evening primrose, 127 



Evolution, emergent, 150, 168, 

 181, 212; and past environ- 

 ment, 165; not an inherent 

 tendency, 191; scope of, 1; 

 starting point of, 150 



Experiment, duration of, 221; 

 Lamarckian, 141; need for, 

 199 



Eyes, 59 



Factors, locaHzation, 102 

 Fell, H. B., 103 

 Fmches, 69 

 Fins, 217 

 Fishes, 215 



Fittest, survival of, 71 

 Flavones, 36 

 Flax, 158 

 Flipper, 217 

 Foods, response to, 56 

 Foot, 217 

 Forces, 47 



Friction, response to, 5Q 

 Frog, change of color, 10; par- 

 thenogenesis, 37 

 Functions, latitude of, 197 



Galdpagos, 69, 122 



Ganoids, lobe-finned, 61; see 

 Crossopterygii 



Gaskell, Augusta, 8 



Genes, 76, 77, 80, 104; action of, 

 204; duration of activity, 100; 

 sphere of activity, 100; de- 

 pendence of, 91; modification 

 of, 96; perpetuation of, 81; 

 role in acquired characters, 

 99; stability of, 95; use and 



disuse of, 105; and X-rays, 



144 

 Genetics, 76, 194 

 Geological changes, 51 

 Germ cells, 91, 209 

 Germinal selection, 115 

 Germ plasm, 87, 97, 98, 210; 



continuity of, 92, 209 

 Gifford, E. W., 69 

 Glands, 194; endocrine, 90, 216 

 Goldschmidt, R., 81 

 Goodrich, E. T., 149 

 Gopher, 151 

 Gowen, J. W., 101 

 Green plants, 18 

 Gregory, J. W., 31 

 Guyer, M. F., 136, 155, 171, 222, 



223 



Hagedoorn, A. L. and A. C, 6 



Hand, 217 



Harrison, R. G., 38 



Henderson, L. J., 36 



Henneguy, L. F., 41 



Herbert, S., 116 



Heredity, Mendelian, 76; and 

 mitochondria, 83; and cyto- 

 plasm, 77, 84 



Heritage, 5, 35, 87, 178, 181, 201; 

 in acquired characters, 149; 

 in evolution, 147; fluctuations 

 of, 51; independence of, 37; 

 modification of, 203; reas- 

 sortment in, 52; in species, 41; 

 tendency of, 194 



Herrick, C. J., 183, 184 



Herrings, 161 



Hesperioidea, 61 



Heterocatalysis, 81 



Heteroploidy, 74 



