INDEX 



523 



Genn nuclei, 24 



individuality of, 115, 116 

 Germ plasm, in nucleus, 123 



Theory of Weismann, 96, 

 97, 335, 336 

 Germ vs. Soma, 96 

 "Germ track," diagram of, 94 

 Germistai, Continuity, 92-97 

 Glandular secretions, effects of, 



329-331 

 Glaucoma, 296 



GoDDABD, feeble-mindedness in- 

 herited, 206, 494 



GOLDSCHMIDT, 494 



Gonia, 128 



Grafts, not modified by stock, 



341, S4S 

 Great men, in crises, 474 

 Geeece, decay of, 485, 486 

 Greeks, ancient, 405-408 

 Growth period, 128 

 GuDEKNATSCH, effccts of food 



on tadpoles, 326, 497 

 Guinea-pigs, recombinations of 

 characters, 381, 382, 383 



transplanted ovaries, 342- 

 344, S46 

 GtrrHKiE, transplanted ovaries, 



341, 497 

 GijTEK, on chromosomes of 



man, 147, 497 



Habits, definition, 354 



good and bad, 354-356, 464 



Hackee, 494 



Haeckel, plastidules, 100 



Haemophilia, 203, 275, 396 



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 



Haeeis, induction effects of 



poor soil, 349 

 Hahmson, on transplanted 

 limbs, 333 

 graft of tadpoles, 341, 34^, 

 497 

 Haeshbergek, 498 

 Harvey, epigram, 9 



epigenesis, 81 

 Hatschek, cleavage and gas- 

 trulation of Amphioxus, 



larvae of Amphioxus, 27, Sd 

 Hereditary lines, interwoven, 



488 

 Heeeditaey Resemblances and 

 DiFFEEENCES, 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 

 Heeedity and Development, 



102-104 

 Heredity and Envieonment, 



85j, 86, 303-306 

 Heredity, Environment, 



Training, 357-359 

 Heeing, Organic memory, 59, 



498 

 Heritage, definition of, 103 

 Heetwig, 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 

 Heetwig, R., modification of 

 sex ratio, 148-150, 498 



