280 



INDEX 



Cliemotropism, 154 



China, 247 



Chinese, 254 



Chordates, 21 



Chromosomes, 36 



Ciona intestinalis, 25 



Cirriped.es, 25, 34 



Cleft palate, 230 



Coccinea, 144 



Coefficient of cross-relationship, 86 

 of heredity, 196, 199 

 of inbreeding, 81/f. 

 of relationship, 81, 84^. 



Coelenterates, 21 



Collins, 137, 153 



Coloration, protective, 146 



Color-blindness, 47^. 



Complemental males, 25 



Composite^, 32 



Conjugatce, 27 



Connate seeds of maize, 133 



Consanguinity, 113, 139 



Corn, varieties of, 215 



Coulter, 26 



Cow, 192 



Cramer, 198 



Crampe, 101^. 



Cromwell, 258 



Crossing-over, diagram to illustrate, 



64 

 Cucumber, 221 

 Cucumis, 144 

 Cymotlioidce, 24 

 Cytoplasm of egg, 200 



Dalton, 235 



Danes, 260 



Darwin, 13, 25, 32, 34, 101, 114^., 



137^., 143, 146^., 154, 164/., 186, 



235 

 Datura, 142, 144 

 Davenport, 230/., 233 

 Delphino, 34 

 Detlefsen, 103, 192 

 Diabetes insipidus, 230 

 Dianthus, 116/., 142, 144, 155 



Diatotnece, 27 



Dichogamy, 33 



Difflugia, 203 

 coronata, 78 



Digitalis, 144, 155 



Dioecism, 22 



Disease, susceptibility and resis- 

 tance to, 134 



Dog, 210f. 



Dominance, 57, 72, 177^. 



Dominant factors, complementary 

 action of, 171 



Double cross, 223 



Double fertilization, 203. 



Draha, 155 



Drosophila, 179, 188, 198, 208 

 melanogaster, 61, 111, 184 

 sterility in, 112 



Diising, 106 



Echinodermata, 22 

 Echinoderms, 21 

 Edwards, 235 

 Ellis, 233 

 Emerson, 183- 

 Endogamy, 238 

 Endosperm fertilization, 153 

 England, 257^., 260/. 

 Englishman, 250, 262 

 Epilepsy, 231, 241 

 Eschscholtzia, 117 

 Europe, 247, 251/., 257, 261 



leaders of, 257 

 European culture, 256 

 Evolution, 13 



inbreeding and outbreeding in, 

 195^. 

 Exogamy, 13, 15, 201 



Factors, stability of, 76f. 

 Faraday, 235 

 Feeble-mindedness, 231 

 Ferns, 29 



Fertilization, diagram to illustrate, 

 39 



double, 41 



in embryo sac of the lily, 41 



