INDEX 



609 



Crisscross inheritance, 412 



Cross-breeding, 507-10 



Crossing-over, in Mendelian heredity, 



419-22 

 Cuenot, L., 357 

 Cumulative factors, 394 

 Curie, P., 284 

 Cuvier, G., 19, 21-22 

 Cytogenic reproduction, 300-301 

 Cytoplasm, 325; in inheritance, 310 



Dakin, W. J., 218 



Daphnia, 461 



Darbishire, A. D., 352, 357 



Darwin, C, 4-6, 8, lo-ii, 17, 19, 23-31) 

 45, 97, 102, 104-5, 132-33, 138, 168, 

 214, 219-20, 222, 228-53, 267-68,323, 

 386, 456, 521, 586 



Darwin, E., 3, 16-17, 18, 21, 446 



Darwinism, 7, 8; background of, 194- 

 227; critique of, 254-71; defense of, 

 general, 262-66; objections to, 256- 

 6x 



Dasypus novenicinclus, 62-63, 106-7, 

 397-98 



Datura, 339, 489 



Davenport, C. B., 288, 374, 377, 459, 

 482, 493-94, 573 



Davis, B. M., 489 



De Candolle, A., 23, 106 



Defectives, segregation of, 575-76 



Democritus, 12 



Dendy, A., 142, 144 



Descartes, R., 15 



Determinants (Weismann's), 30-32, 274 



Determination of sex, 396-404 



Detlefson, J. A., 472-73 



Development: facts of, 1 13-14; outline 

 of animal development, 114, 121 



De Vries, H., 7, 36-39, 43, 267, 269-70, 

 282, 339, 352, 388, 461, 477-90 



Difficulties and objections to natural 

 selection as seen by Darwin, 56-62 



Difflugia, 443 



Digamety, female, 400-401 

 Dinornis gravis, 73-74, 79, 124 

 Dominance, Mendel's law of, 40-42, 

 340-41, 345, 392 



Domm, L. V., 406-8 

 Doncaster, L., 358 



Downing, E. R., 517-30 



Driesch, H., 34 



Drinkwater, H., 359, 528 



Drosophila melanogaster, 334, 337-38; 

 chromosomes of, 360-62; sex-linked 

 heredity in, 409-12; mutations in, 448 



Drummond, H., 223-24 



Duplicate factors, 394 



Durham, F. M., 388-89 



Ears of man and apes, 92-94 



Earthworms and vegetable mold, 221-23 



East, E. M., 43, 376, 501 



Eaton, Rev. A. E., 80 



Ectoblast, 115 



Edentates, distribution of, 169 



Edwards, J., 580 



Eimer, T., 34, 35, 273 



Elderton, E. M., 566 



Electric organ, of fishes, 200 



Elephants, evolution of, 147-51 



Elephas, 148-52; E. antiqiius, 160; E. 

 colunihi, 156; E. leidyi, 156 



Embryology, evidences from, 1 13-21 



Emerson, R. A., 500 



Empedocles, 12-13 



Endoblast, 125 



Engrammes of Rignano, 461 



Enteleche, 34 



Environment: effects of, on develop- 

 ment, 333-34; effects of, on heredity, 

 328-32, 334-36; and heredity, 328-29 



Eanthropus dawsoni, 164 



Epicurus, 14 



Epigenesis, 13 



Epilepsy, inheritance of, 523 



Equidae, 141-44 



Equus, 142-44; E. leidyi, 156 



Erigeron, 494 



Escherich, 224 



Eugenics: Carnegie Laboratory' of, 517; 

 and cruelty to children, 484, 485, 507; 

 defined, 570; Education Society, 509; 

 and Euthenics, 470-87; Gallon Labo- 

 ratory of, 517; positive, 577-80; and 

 religion, 490, 491; restrictive, 572-77; 

 and unemployment, 483-84; and wo- 

 man, 4S4 



Eupagurus, 255 



Euthenics, 557-80 



