INDEX

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 East north central states, 358 East south central states, 358 Ebbinghaus tests, 288 Economic determinism, 365