538 



INDEX 



Fecundity, inherited, 210 

 Feeble-mindedness, 211, 212, 303 

 Feminist movement, 500 

 Fertility, of lower types, 424 

 Fertilization, 15, 17, 113-116 



heterogeneous, 321 

 "Fewer and better children," 



453 

 Fischer, mutations of insects, 



357 

 Fluctuations, 217, 218, 400 

 Food, influence on development 



in tadpoles, canaries, bees, 

 334, 335 

 Foot and Strobell, on chromo- 

 somes, 173 



on sex-limited characters, 

 280 

 Forel, effect of alcohol on germ 



cells, 321 

 Formation of Substances in 



cells, 186 

 Formulae, Inheritance, 251- 



254 

 Fowls, races of, 379, 380 



transplanted ovaries, 350 

 Freedom, and determinism, 476 



birth and growth of, 480 



definition of, 482 



development of, 481 



from reproduction, 501 



greatest in man, 481 



not absolute, 475 



not uncaused activity, 482 



of action, 77 



of individual, 430, 459, 498 



of society, 498 

 Friedrich's Disease, 303 

 Frog, behavior of, 481 



double embryos, 322, 324 



early development, 26, 27 

 Function and structure, corre- 

 lated, 41, 48, 208 



Functional Activitt, 335 



in human development, 362 



Gager, radium on nuclear di- 

 vision, 319 

 Galton, age of marriage, 435, 

 447 

 "Ancestral Inheritance," 



221, 222, 229 

 artistic faculty, 198, 221 

 characters, 198 

 definition of eugenics, 425, 

 diseases, 198, 221 

 eugenical policy, 435, 436 

 eye-color, 198, 221 

 "Filial Regression," 224- 



226, 229 

 genius inherited, 212, 221 

 heredity vs. civilization, 370 

 intermarriage of scholars, 



431 

 kinds of inheritance, 214 

 nature and nurture, 309 

 on Ancient Greeks, 418, 419 

 on identical twins, 367 

 pioneer in heredity, 199 

 poor health of divines, 366 

 religious significance of evo- 

 lution, 507 

 on "sports," 216, 217 

 statistical study of inheri- 

 tance, 220-229 

 stature, 198, 202, 221 

 weight of seeds, 198 

 Gamete, 13 



Gardener, methods of, 432 

 Gastrula, 24, 30 

 Gates, Oenothera chromosomes, 



403 

 Gauss, 489 

 'Gemmules," of Darwin, 98, 



106 

 Generalized types, 429, 430, 431 

 Generations, parental and fil- 

 ial, 234, 236 

 symbols of, 237 



