270 



INDEX 



Combs of cocks, 127, 171 

 Continuity of germ-plasm, 35 

 Continuous evolution, 48-50 

 Cope, E. D., 9, 215, 229, 232 

 Coral islands, Darwin's theory 



of, 46 

 CoEEENS, C, rediscoverer of 



Mendelism, 145 

 CouES, E., quoted, 78 

 Coulter, J. M., address by, 57- 



71 

 Crime and evolution, 256 

 Cbockeb, W., work on seeds, 62 

 CnviEB, G., 215 

 Cytoplasm in heredity, 101 



Daka, theory of coral islands, 9 



Daewik, C, 249; influence, 1; 

 early Ufe, 11; first attention 

 to evolution, 7; first sketch of 

 Origin, 13; prepares for pub- 

 lication, 18; maturity of the 

 Origin, 23; thrilled by anthem, 

 38; on Leicester sheep, 76; on 

 isolation, 87; on mutation, 

 43-45, 163-165; work on galls, 

 131, 132; on black peacock, 

 169; adaptation, 193; rela- 

 tion to paleontology, 312; 

 psychology, 251-254, 260; let- 

 ters: Huxley, 10; Owen, 31; 

 Wright, 32; Leidy, 209; 

 Davidson, 210 



Dabwin, Erasmus, Zoonomia, 

 10; evolution, 20 



Dahwix, Francis, on acquired 

 characters, 39 ; presidential 

 address, 39 ; letter about galls, 

 132 



Davestpoht, C. B., address by, 

 160-181 



Davidsok, L., letter from Dar- 

 wii^ 310 



Definite variations, 231 



De Vbies, H., 342; intercellu- 

 lar pangenesis, 93, 106, 144; 

 premutation period, 133; re- 

 discoverer of Mendelism, 145; 

 mutation theory, 160, 329; 

 cessation of selection, 174; 

 adaptation, 193 



Differentiation and cytology, 

 105 



Directed variation, 236 



Discontinuous evolution, 48, 



140, 180, 237, 338 

 DoLLO, L., 329 



Ecology, 61 



Edinburgh Review, article by 

 Owen, 31 



Education and evolution, 363, 

 365 



Effect of Origin, 64, 55 



EiGEXMAXK, C. H., address, 

 182-308 



EiMEB, T., orthogenesis, 193 



Elementary species, 166 



Elimination, 176, 177 



Emotions and evolution, 351 



Entelechy, 110 



Environment, adjustment to, 

 117; factor in evolution, 244 



Enzymes in heredity 106-109 



Evening primrose, 130, 133, 165- 

 166 



Evolution first brought to Dar- 

 win's attention, 8; of Gymno- 

 sperms, 66-70; isolation in, 

 72-91; cell in relation to, 93- 

 113; rdle of environment in, 

 114-143; and psychology, 351- 

 266 



Experimental morphology, 61 



Extra-floral nectaries, 63 



External factors, 115, 136, 197- 

 207, 238, 339 



Factors of evolution, 238 

 Factor hypothesis in heredity, 



108, 115, 150-158 

 Fareee, Lord, letter of Dar- 

 win to, 25 

 Fawcett, H., defense of Dar- 

 win, 8; letter to, from Dar- 

 win, 21, 23; review of Origin, 

 32, 34 

 Ferments in heredity, 106 

 Fertilization of egg, 108 

 FiscHEE, E., experiments, 133 

 FiSKE, J., evolutionary teaching, 



9 

 FiTTosr, 19 

 Fluctuation, limit to, 49, 173- 



176; in isolation, 85, 173 

 FosBES, E., coral reefs, 46; 

 views on arctic relics antici- 

 pated by Darwin, 46 



