INDEX 



535 



"weakness with strength," 



442 

 white X black leghorns, 273 

 Davenport and Weeks, epi- 

 lepsy inherited, 212 

 Deaf-mutism, 206, 304 

 Death, of families, 450-453 

 Deathrate, declining, 447-451 

 Declaration of Independence, 



311 

 Decline of families and nations, 



503 

 Defectives, growing burden of, 

 424 

 alarming increase of, 436 

 Defects, educational influence 



of, 365 

 Democracv and human equality, 



312 

 Descartes, 311 

 "Determinants" of Weismann, 



106, 261 

 Determiners, 107 



combinations of, 261 

 differential causes, 260 

 Determinism, 



and Responsibility, 475 

 definition of, 476 

 not Fatalism, 476 

 not predeterminism, 476 

 of Environment, 469-475 

 of Heredity, 463-469 

 of personality, 475 

 scientific, 476 

 Development, a series of re- 

 sponses, 335, 473 

 alternatives in, 478 

 definition of, 109 

 is transformation not new 



formation, 168 

 mosaic, 341 

 not reversible, 478 

 of function, 39 

 of personality, 7, 82, 476 

 potentialities of, 470, 471 

 physiology of, 315, 



various aspects of, 81, 82 



viviparous, 19 

 Development of Body, 8 



of Mind, 43-45 

 Developmental Responses, 318- 

 335 



AFTER FERTILIZATION, 322 

 BEFORE FERTILIZATION, 321 

 DURING FERTILIZATION, 321 



De Vries, action of selection, 

 385, 391 

 fluctuations, 217, 218 

 induction effects of poor 



soil, 357 

 intra-cellular pangenesis, 



188 

 "mutation theory," 217 

 mutations, 217, 218 

 Oenothera mutants, 357, 



403, 405 

 on nuclear control of differ- 

 entiation, 188 

 pangenes, 106 



rediscovery of "Mendel's 

 Law," 230, 510 

 Diabetes, 302 



Differential division, of Cyto- 

 plasm, 132 

 of cells, 125, 128, 190-192 

 Differentiation, 37 



"correlative," 339, 340 



definition of, 109 



due to interaction of cell 



parts, 169, 187, 188, 189 

 measure of, 192 

 nuclear control of, 188, 189 

 "self," 341 

 Dihybrid, 247, 251 

 Dimples, inheritance of, 203 

 Dionaea, reactions of, 61, 62 

 Diploid number of chromo- 

 somes, 143 

 Disease, inheritance of, 206-208 



slight resistance to, 207 

 Dislocation of organs in centri- 

 fuged eggs, 329, 330 



