INDEX 



281 



Fish, 92, 158 



Fitzhugh, 235 



Flat worms, 21 



Focke, 141, 145 



Fossil ants in amber of Oligocene 



period, 77 

 France, 257f., 260/. 

 Franklin, 235/f. 

 Franks, 200 

 Frazer, 13 

 Freeman, 157 

 French, 257 

 Frenchman, 250 

 Frequency distribution of corolla 



length in tobacco, 70 

 Freud, 13 

 Fucus, 26, 28 

 Funaria, 46 



Galton, 50, 227, 233, 237 



Gamete formation in dihybrid, 59, 63 



Gametogenesis, 38, 55 



Gametophyte, 29 



Gardner, 118 



Gartner, 141, 143, 145, 155 



Gaur, 192 



Gayal, 192 



Genetics, 50 



Genotype hypothesis, 166 



Gentry, 213 



Germany, 257, 260, 262 



Germplasm, mixture of, 201 



Gernert, 155 



Gerschler, 158 



Geum, 144 



Goat, 212 



Goddard, 240, 243 



Goliath, 110 (fig. 28), 233 



Gonochorism, 22, 33 



Grape, 210 



Gravatt, 192 



Greece, 251 



Green Algser, 26 



Guaita, von, 101/f. 



Guinea-pig, 188 



growing curves of, 160 



Guinea-pig, inbreeding experiments 

 with, 110/f. 



Haiti, 253 



Hammurabi, code of, 14 



Hare-lip, 230 



Hawkweed, 22 



Hayes, 89, 148, 168, 192 



Herbert, 141 



Heredity coefficient, 196, 199 



Hermaphroditism, 22/f., 26, 30, 33, 



201 



Hero, 117 



Heterosis, 16, 96, 141, 144, 157, 172, 

 202 



importance of in sex origin, 204/f. 



manifestations of, 150 



selective effect of, 154 

 Heterozygosis, 121, 138 



degrees of, 93 



similarity of effect of, with en- 

 vironment, 157 

 Hittites, 261 

 Homozygosis, 113 

 Homozygosity, 134 



affected by linkage, 95 



attainment of, 95 

 Horse, 212 



origin of, 210 f. 

 Huntington's chorea, 230 

 Huth, 243 

 Hybrid vigor, 16, 88, 96, 141 



benefit from, 219 



cause of, 164 

 Hydatina, 158 



senta, 112f. 

 Hyde, 112, 158 

 Hyoscyamus, 155 



Iberian, 259 



race, 258 

 Ichythyosis, 230 

 Inbreeding, curves of, 84 



effect of, on yield and height of 

 maize, 124/f. 



effect on organisms, 137 



