INDEX 



519 



Decline of families and nations, 



487 

 Defectives, growing burden of, 

 411 



alarming increase of, 420 

 Defects, educational influence 



of, 356 

 Democracy and human equality, 



304 

 Descabtes, 303 

 "Determinants" of Weismann, 



100, 255 

 Determiners, 101 



combinations of, 255 



differential causes, 354 

 Detehminism, 



and Responsibility, 443 



definition of, 460 



not Fatalism, 460 



not predeterminism, 460 



of EsrviRON-MENT, 453-459 



of Heredity, 447-453 



of personality, 459 



scientific, 460 

 Development, a series of re- 

 sponses, 327, 457 



alternatives in, 462 



definition of, 103 



is transformation not new 

 formation, 161 



mosaic, 333 



not reversible, 462 



of function, 36 



of personality, 7, 77, 460 



potentialities of, 454, 455 



physiology of, 307 



various aspects of, 76, 77 



viviparous, 18, 19 

 Development of Body, 8 



OF Mind, 39-41 

 Developmental Responses, 310- 

 327 



after fertilization, 314 



before fertilization, 310 



during fertilization, 313 

 De Vbies, action of selection, 

 377, 380 



fluctuations, 211, 212 



induction effects of poor 

 soil, 349 



intra-cellular pangenesis, 

 182 



"mutation theory," 211 



mutations, 211, 212 



Oenothera mutants, S9S, 

 348 



on nuclear control of differ- 

 entiation, 182 



pangenes, 100 



rediscovery of "Mendel's 

 Law," 224, 494 

 Diabetes, 293 



Differential division, of Cyto- 

 plasm, 126 



of ceUs, 119, 122, 183-187 

 Differentiation, 37 



"correlative," 331, 332 



definition of, 103 



due to interaction of cell 

 parts, 163, 180, 181, 182 



measure of, 186 



nuclear control of, 181, 182 



"self," 332, 333 

 Dihybrid, 239, Ui, 242, 244 

 Dimples, inheritance of, 197 

 DioNAEA, reactions of, 56, 58 

 Diploid number of chromo- 

 somes, 137 

 Disease, inheritance of, 200, 

 202 



slight resistance to, 204 

 Dislocation of organs in centri- 



fuged eggs, 321, 3S2 

 Dispermic eggs, 313 

 Divines, poor health, 357 

 Division period, 128 

 Dogs, different races, 368 



psychological characters in- 

 herited, 204 

 Domestic Animals, 367-374 



degree of change, 368 



how produced, 375-377 



number of species, 367 



progenitors, 367, 368 



regressive mutants, 394 



