Chinese, 315, 397, Fig. 5 Chinese immigration, 321 Chorea, Huntingdon's, 109, 433 Christianity, 171, 394 Chromosomes, 87, 431, 437 Church acquaintances, 234 Civic Club (Pittsburgh, Penn.), 371 Civil War, 268, 301, 321, 326, 402 Cleopatra, 207 Climate, 42 Cobb, M. V., 96 Co-education, 267, 383 Coefficient of correlation, 212 Coercive means, 184 Cold Spring Harbor, 100 Coldness, 251 Cole, L. J., 45, 51, 63, Fig. 7 Collateral inheritance, 404 College women, 241 Collins, G. N., 104 Colonial ancestry, 426 Colony plan, 188 Color line, 280 Color-blindness, 109, 433 Columbus, C., 132 Columbia, District of, 187 Columbus, Ohio, 261 Columbia University, 10, 41, 100, 278 Combemale, 44 Compulsory education, 369 Confederate Army, 323 Congenital, 438 Conklin, E. G., 435 Connecticut, 76, 128, 192, 261, 326 Connecticut Agricultural College, 82, Fig. 14 Consanguinity, 207 Conscription, 319 Continuity of germ-plasm, 29 Controlled association tests, 288 Cook, O. F., 356 Corn, Fig. 2 Cornell Medical College, 45 Correlation, 13, 212, 438 Cost of clothing, 274 Cost of domestic labor, 275 Cost of food, 274 Cost of medical attention, 275 Courtis, S. A., 77 Cousins, 202 Criminals, 158, 182, 192 Croatians, 427 Crum, Frederick S., 259 Cushing, H., 102 Cynical attitude, 249 Cytology, 438 D Danes, 426 Dalmatians, 311 Dance acquaintances, 234 Dark family, 168 Darwin, C., 20, 21, 25, 68, 69, 117, 134, 147, 151, 174, 208, 214, 334 Darwinism, 214 Davenport, C. B., 66, 154, 159, 182, 202, 205, 208, 246, 338, 341, 342, 348, 349, 433, 435 Davies, Maria Thompson, 235 Deaf, 157 Deafness, 32, 154 Declaration of Independence, 75 Declining birth rate, 237, 256, 268, 400 Defective germ-plasm, 194 Defectives, 302 Definition of eugenics, 147, 152 Degenerate persons, 193 Delaware, 187 Delayed marriage, 217 Delinquents, 302 Demme, R., 56 Democracy, 360 Denmark, 137 Dependents, 302 Desirability of Restrictive Eugenics, 167 Destitute classes, 214 Determiners, 432, 438 Differences among men, 75 Diffloth, P., 222 Diseases, 38 Disease resistance, 402 Disposition, 219, 221 Distribution, 307 District of Columbia, 187 Divorce, 201 Dolichocephalic heads, 427 Doll, E. A., 421 Dominance, 438 Dominant, 433 Dress, 219, 221 Drinkwater, 342 Drosophila, 101 Drug fiends, 193 Drunkenness, 389 Dublin, L. I., 400 Dubois, P., 23, 24 DuBois, W. E. B., 295 Duncan, J. M., 247 Duncan, F. N., 102, Fig. 17 Dugdale, R. L., 159 Durant scholarship, 262 Dyer family, 206 Dynamic evolution, 421 Dynamic of manhood, 223 Dysgenic, definition of, 438 Dysgenic types, 176 E Earle, E. L., 94 Early marriages, 247 Eastern Europe, 427 East, E. M., 104