INDEX 



Germ nuclei, 24 



individuality of, 115, 116 

 Germ plasm, in nucleus, 123 



Theory of Weismann, 96, j 



9T, 335, 336 

 Germ vs. Soma, 96 

 "Germ track," diagram of, 94 

 GERMINAL CONTINUITY, 92-97 

 Glandular secretions, effects of, i 



329-331 



Glaucoma, 296 



GODDAHD, feeble-mindedness in- j 

 herited, 206, 494 



GOLDSCHMIDT, 494 



Gonia, 128 



Grafts, not modified by stock 



341, 342 



Great men, in crises, 4T4 

 GREECE, decay of, 485, 486 

 GREEKS, ancient, 405-408 

 Growth period, 128 

 GUDERNATSCH, effects of food 



on tadpoles, 326, 497 

 Guinea-pigs, recombinations of 

 characters, 381, 382, 383 



transplanted ovaries, 342- 1 



344, 346 

 GUTHRIE, transplanted ovaries, 



341, 497 

 GUYER, on chromosomes of 



man, 147, 497 



Habits, definition, 354 



good and bad, 354-356, 464 



HACKER, 494 



HAECKEL, plastidules, 100 



HAEMOPHILIA, 203, 275, 296 



Hair, color, 291 

 form, 288, 291 



Half castes, of Australia, 417 

 of New Zealand, 417 



HANSEN, mutations of yeast, 

 348, 391 



Haploid number of chromo- 

 somes, 137 



Hardship, educational value of, 

 355, 475 



HARRIS, induction effects of 



poor soil, 349 

 HARRISON, on transplanted 



limbs, 333 

 graft of tadpoles, 341, 342, 



497 



HARSHBERGER, 498 

 HARVEY, epigram, 9 



epigenesis, 81 



HATSCHEK, cleavage and gas- 

 trulation of AMPHIOXITS, 

 25 



larvae of AMPHIOXTJS, 27, 29 

 Hereditary lines, interwoven, 



488 



HEREDITARY RESEMBLANCES AND 

 DIFFERENCES, 193, 194, 207- 

 214 



Heredity, and memory, 347 

 and variation, 194, 212 

 control of, 387 

 definition of, 89, 90, 103 

 includes assimilation, etc., 



163 



mechanism of, 105 ' 

 more potent than environ- 

 ment, 438 



possible improvements, 490 

 theories of, 105 

 usually unchanged by en- 

 vironment, 437-447 

 HEREDITY AND DEVELOPMENT, 



102-104 

 HEREDITY AND ENVIRONMENT, 



85, 86, 302-306 

 HEREDITY, ENVIRONMENT, 



TRAINING, 357-359 

 HEHING, Organic memory, 59, 



498 



Heritage, definition of, 103 

 HERTWIG, O., discovery of ferti- 

 lization, 107 

 human ovum, 11 

 idioblasts, 100 

 influence on germ cells of 

 X-rays, radium, chemi- 

 cals/drug habit, 311, 313, 

 498 



HERTWIG, R., modification of 

 sex ratio, 148-150, 498 



