388 
Dumont, A., 179; birth rate and status, 
173 
Duncan, B. S., and Duke, E., on fer- 
tility of native and foreign born 
women, 126; on infant mortality 
and wages of fathers, 191, 192 
Duncan, Mathews, on order of birth 
and size of offspring, 297 
Dunlop, J. C., on birth rate and occu- 
pation, 134, 135, 141 
Dunn, H. P., 383 
East, E. M., and Hays, H. K.., inbreed- 
ing in corn and_ tobacco, 239, 
240 
East, E. M., and Jones, D., on cross 
breeding and vigor, 242 
Eckles, C. H., and Palmer, L. S., 323 
Elderton, E. M., 26, 141; on birth rate 
and social status, 134, 170-172; 
on size of family and death rate, 
305; on urban and rural birth rates, 
161 
Elderton, E. M., and Pearson, K., 203; 
on alcohol and heredity, 278, 285- 
288, 294 
Ellis, H., 9, 72, 95, 179, 319, 320, 3233 
on ancestry of criminals, 81; intel- 
ligence of female offenders, 88; 
genius and insanity, 113, 114, 116; 
on birth rank and eminence, 310; 
on sexual selection in man, 226, 230, 
236 
Engelmann, G. J., 141 
Environment and heredity, 2, 19-26, 
27; and crime, 73, 74, 80, 86, 92, 94 
Epilepsy, inheritance of, 18, 29, 40-44, 
278-281; and crime, 76, 77, 80, 81, 
89, 93; and birth rank, 303 
Esquirol, J. E. D., 45, 46 
Estabrook, A. E., 70, 95, on the Jukes, 
82-85 
Estabrook, A. E., and Davenport, 
C. B., the Nam family, 245 
Eugenics, 3, 60 
Eugenics Record Office, 10, 28, 61, 64, 
82 
INDEX 
Ewart, C. T., on fertility of defectives, 
130, 131, 383 
Ewart, R. J., effect of parental age on 
offspring, 315, 316, 323; on effects of 
birth intervals, 322 
Fahlbeck, P. E., 141, 179 
Falkenburg, 353 
Farr, W., 10 
Fay, E. A., heredity of deafness, 245; 
marriage of deaf mutes, 230 
Feeble-mindedness, 18; heredity of, 
29-44; and crime and delinquency, 
80, 81, 84-94; increase of, 372; death 
rate and, 29, 187, 188; relation to 
consanguinity, 243-245 
Feer, E., 267 
Fehlinger, H., 267 
Félice, R. de, 179 
Ferdy, H., 179 
Féré, C., on degeneracy, 65-67, 70 
Fernald, M. R. et al., 88 
Fernald, W. E., on intelligence of 
convicts, 87 
Ferrero, Madame, on instinctive crim- 
inals, 75, 95 
Ferri, E., 95 
Finch, E., 267 
Finck, H. T., 224, 236 
Fircks, A., von, 150 
Fischer, A., 383 
Fischer, E., on Boer-Hottentot hybrids, 
252, 255, 267 
Flexner, A., 96, intelligence of pros- 
titutes, 89 
Flood, E., and Collins, M., 72 
Florian, E., and Cavaglieri, G., 97 
Fol, H., on assortative mating, 236 
Forberger, J., 179, 363 
Forel, A., 95, 204 
Franklin, B., on American families 
in the 18th century, 126 
Fraser, K., and Watson, on syphilis and 
mental defect, 63, 64 
Firbringer, P., on sterility, 165 
Gichte, H., on low birth rate of French 
intellectuals, 178 
