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^. 

 Franks, 260 

 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^. 

 Guinea-pig, 188 

 growing curves of, 160 



Guinea-pig, inbreeding experiments 

 with, 110^. 



Haiti, 253 



Hammurabi, code of, 14 



Hare- lip, 230 



Hawkweed, 22 



Hayes, 89, 148, 168, 192 



Herbert, 141 



Heredity coefficient, 196, 199 



Hermaphroditism, 22^., 26, 30, 33, 



201 

 Hero, 117 



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

 202 



importance of in sex origin, 20i ff. 



manifestations of, 150 



selective effect of, 154 

 Heterozj^gosis, 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, 2l0ff. 

 Huntington's chorea, 230 

 Huth, 243 

 Hybrid vigor, 16, 88, 96, 141 



benefit from, 219 



cause of, 164 

 Bydatina, 158 



senta, ll2f. 

 Hyde, 112, 158 

 nyoscyamus, 155 



Iberian, 259 



race, 258 

 Ichythyosis, 230 

 Inbreeding, curves of, 84 



effect of, on yield and height of 

 maize, 124^. 



effect on organisms, 137 



