2^6 



HEREDITY AND EUGENICS 



Corpora lutea, 177, 178, 196, 200 



quadrigemina, 211 

 Correlation-coefficients, 28, 30, 32, 



139, 140, 145, 146, 185, 209 

 Cortez, 65 



Cotton, short internodes in, 35 

 Cragg, E., 90 



Cranial capacity of early man, 246 

 Cretin, babies, 216 



cattle, 216, 217 

 Crew, F . A . E . , sex of frogs, 132 

 Criminals and inheritance, 163 



classification of, 184 



feebleminded, 149 

 Crooked little finger, 193 

 Cross-bred races, 222, 229 

 Crossing, and evolution, 223 



between races, 221, 225, 226, 

 227, 228, 229, 232, 233, 236 

 Cuba, 99 

 Cumberland, 113 

 Cunier, F., 118 

 Cunningham, J. D., 72 

 Curled hair, 53, 126, 127 

 Cushing, Harvey, 88, 89 

 Cuvier, 1 14 

 Cyclopia, 4, 193 

 Cytolysin, 144 



D 



Dachshund, 40, 126, 215 



Daltonism, 112 



Dampier, 65 



Danforth, C. H., 92, iii, 180 



Darien, 65 



Darwin, C, 3, 54, 60, 99, 102, 129, 

 148, 149, 168, 169, 170, 

 193, 205, 220, 240, 241 

 Erasmus, 168 



Daughters of Brigham Young, 143 



Davenport, C. B., 27, 28, 29, 30, 

 35, 39, 41, 43, 52. 53, 58. 75, 

 95, 122, 123, 125, 141, 153, 157, 

 158, 162, 163, 194, 195, 196, 197, 

 200, 222, 235, 236 



Deafness, 120 



Deaf-mutism, inheritance of, 106, 

 107 



Dean, Bashford, 68 



Death, causes of, 237 

 rates, 237, 238, 243 



Decay of teeth, 124 



Decline in birth-rate, 244, 245 



Deer, blastocyst of, 177, 178 



Defectives, marriage of, 161 



Deformities, origin of, 71 



Dementia praecox, 156, 158 



Democratic Societ^^ 221 



Denmark, eye colour in, 45 



Departement d'Isere, 104 

 Descent oj Man, 102, 241 

 Detlefson, J. A., 69, 98, iii 

 Development of the human mind , 



225 

 Dexter Kerry cattle, 216 

 Diabetes insipidus, 128, 236 

 Differences between classes, 249 

 Differential birth-rate, 240, 249 

 Differentiation of tribes, 226, 227 

 Digital abnormalities, 76 

 Diploid chromosome numbers, 21 

 Disharmonies, physical, 222, 236 

 Dislocation of the lens of the eye, 



130 

 Disposition in twins, 180, 189 

 Dizygotic twins, 192, 202 

 Dogs, coat colour in, 67, 69 



eye colour in, 49 



length of tail in, 68 



pariah, 41 



on Sable Island, ij 



Polydactyly in, 93 



prosopia in, 126, 215 



turnspit, 41 



variations in, 125 

 Dolichocephalic skulls, 212 

 Dominance, 24 



variable, 55 

 Dominant factors, 174 

 Donitz, 125 



Double monsters, 179, 181, 199 

 Double-yolked eggs, 203 

 Drawings of animals, 155 

 Drinkwater, H., 80, 81, 82, 83, 85, 



86, 88, 90, 136, 170 

 Drosophila, 17, 20, 25, 48, 90, 100, 



114, 132, 140, 196, 224 

 Ductless glands. See Endocrine 



glands 

 Duerden, J. S., 25 

 Dugdale, 160 

 Duke Ernst the Iron, 124 

 Duncan, F. N., 89 

 Duplicate twins, 181, 182, 184, 



186, 188 

 Dwarfness, inheritance of, 7 

 Dwarfs, human, 34, 35, 43, 44, 65, 

 212, 215, 216 



trees, 36 



varieties, 36 

 Dwight, Timothy, 40 

 Dynamometer and will power, i 55 



Ear, bilobed, 135 



conformation of, 25, 26 

 lobe fissure, 26 



