INDEX 
Oettingen, A. von, Moralstatistik, 10 
Ogle, W., marriage rates and economic 
conditions, 146, 180 
Oldenberg, K., 142 
Oliver, T., lead poisoning and progeny, 
291, 292, 295; dangerous trades, 329 
Ordahl, G., 95, 96; on juvenile delin- 
quents, 90 
Ordahl, L. E., 95 
Orschansky, J., 70 
Owen, R., 13 
Paddon, M. E., 97 
Paine, Thos., on heredity of ability, 98 
Pangenesis, 11-13 
Parent-Duchatelet, A. J. B., intel- 
ligence of prostitutes, 89 
Parker, C. H., mental tests of the unem- 
ployed, 92 
Parmelee, M., 95, 97 
Paton, S., on heredity of insanity, 45 
Paul, C., on lead poisoning and prog- 
eny, 291, 295 
Pauperism and mental defect, 92-94 
Pearl, R., 26, 221; hereditary effects of 
alcohol on fowl, 274-276 
Pearson, K., biometric studies, 8, 9, 
26; on heredity and environment, 
22, 26; on mental defect and Mendel- 
ism, 36, 37, 53; on “anticipation” in 
heredity, 59; on mating with defec- 
tives, 61; on infant mortality, 195, 
196; on sexual selection in man, 229, 
236; on birth rate and status, 134, 
142; on handicapping the first born, 
2907-305, 323; on natural selection in 
man, 181, 185, 188, 189, 204; on 
hereditary effects of alcohol, 286- 
289, 295 
Pearson, K., and Jaederholm, G. A., 70 
Penta, P., on parentage of criminals, 81 
Peters, W., 117 
Pforringer, alcohol and heredity, 271 
Phillips, J. C., birth rates of Harvard 
and Yale graduates, 135, 136 
Piff, T., 180 
Pintner, R., and Toops, H. A., 97 
393 
Plate, L., 26 
Platschick, C., dental caries in recruits, 
365 
Ploetz, A., 180, 296, 384; inheritance 
of longevity, 192-195, 204, 323 
Ploss-Bartels, race crossing and beauty, 
252; child bearing in savages, 367 
Pollitz, P., 95 
Pollock, H. M., and Morgan, W. S., 
354 
Popenoe, P., 26, 142; long life of the 
first born, 308, 309, 323; on inbreed- 
ing, 241 
Popenoe, P. and Johnson, R. H., 9, 232 
Potts, W. A., alcoholic inheritance and 
feeble-mindedness, 281, 296 
Poulton, E. B., 13 
Powys, A. O., on longevity and fecund- 
ity, 188, 204; on infant mortality, 
197, 204, 221, 313 
Prinzing, F., 142, 197, 204, 221, 313; 
ages at marriage, 236, 349, preva- 
lance of venereal infection, 165, 
167 
Prostitution and mental defect, 88, 89 
Punnett, R. C., 26 
Quatrefages, A. de, on race crossing, 
254, 267 
Radestock, P., 72 
Rath, C., 95 
Rauber, 13 
Ravenstein, E. G., 354 
Redfield, C. L., effects of parental age 
on progeny, 316-320, 324 
Rehm, O., 71 
Reibmayr, A., 117; beauty of race hy- 
brids, 252 
Reichardt, E. N., 363 
Reid, G. A., 9, 210; racial influence of 
alcohol, 276, 296; of disease, 182 
Religion, racial effect of, 3, 355-363, 
379, 380 
Rennert, O., lead poisoning and prog. 
eny, 291, 292 
Rentoul, R. R., 9 
