INDEX 



517 



Darwinism, 7, 8; background of, 188- 

 216; critique of, 245-62; defense of, 

 general, 252-56; objections to, 247- 

 52 



Dasypus novemcinctus, 366, 375-78 



Datura, 395 



Davenport, C. B., 257, 333, 372, 393, 

 396, 474, 475 



Davenport, G. C., 400 



Davis, B. M., 360 



De Candolle, A., 23, 122 



Defectives, segregation of, 479-80 



Democritus, 12 



Dendy, A., 71, 73 



Descartes, R., 15 



Determinants (Weismann's), 30, 31, 32, 

 265 



Determination of sex, 449-56 



Development: facts of, 164, 165; out- 

 line of animal development, 165-72 



De Vries, H., 7, 36, 37, 38, 39, 43, 258, 

 260, 261, 273, 335, 346-60, 380, 393, 

 429 



Difficulties and objections to Natural 

 Selection as seen by Darwin, 236-42. 



Difflugia, 378 

 Digby, L., 363, 364 

 Dihybrid ratio, 391 

 Dinornis grams, 136, 137, 142 

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



381, 382, 386 

 Doncaster, L., 399 

 Downing, E. R., 459-72 

 Driesch, H., 34 

 Drinkwater, H., 400, 460 

 Drosophila ampelophila, 318, 321, 380, 



444; chromosomes of, 401, 402, 403; 



sex-linked heredity in, 433-38 

 Drummond, H., 214, 215 

 Durham, F. M., 429, 430 



Ears of man and apes, 155, 156, 157 



Earthworms and vegetable mold, 214 



East, E. M., 43, 419 



Eaton, Rev. A. E., 143 



Ectoblast, 1 66 



Edentates, distribution of, 98 



Edwards, J., 483 



Eimer, T., 34, 35, 264 



Elderton, E. M., 493 



Electric organ, of fishes, 196 



Elephants, evolution of, 76-80 



Elephas, 76, 77, 78, 79, 80; E. antiquus, 

 89; E. columbi, 85; E. leldyi, 85 



Embryology, evidences from, 60, 164-72 

 Empedocles, 12, 13 

 Endoblast, 166 

 Engrammes of Rignano, 335 

 Enteleche, 34 



Environment: effects of, on develop- 

 ment, 317, 318; effects of, on heredity, 

 312-16, 318-20; and heredity, 312, 



Eoanthropus dawsoni, 93 



Epicurus, 14 



Epigenesis, 13 



Epilepsy, inheritance of, 465 



Equidae, 70, 71, 72, 73 



Equus, 71, 72, 73; E. leidyi, 85 



Escherich, 215 



Eugenics: Carnegie Laboratory of, 459; 

 and cruelty to children, 502, 503; 

 denned, 473; Education Society, 505 ; 

 and Euthenics, 484-96; Galton 

 Laboratory of, 459; positive, 480-83; 

 and religion, 508, 509; restrictive, 

 475-480; and unemployment, 501, 

 502; and woman, 502 



Eupagurus, 246 



Euthenics, 473, 484-96 



Evolution, organic: causal factors of, 

 185; definitions of, 3, 4, 5; evidences 

 of, 59, 60; experimental, 60; nature 

 of proof of, 59; proof of, 57, 58, 59; 

 what it is not, 8, 9 



Fabre, M., 231 



Factor hypothesis, 417-28 



Factorial analysis of color in mice, 429- 



30 

 Factors, in Neo-Mendelian heredity: 



complementary, 417-20; cumulative, 



424; inhibitory, 42 1-23 ; lethal, 432; 



in quantitative inheritance, 424-28 



Farmer, J. B., 363, 364 

 Farrabee, W. C., 400 

 Feeble-mindedness, inheritance of, 463, 



464 



Fertilization, 301, 302 

 Fierasfer acus, 198, 199 

 Filaria sanguinis hominis, 212 

 Filial Regression, Gallon's Law of, 



372-74 

 Flower, Professor, 162 



