Pre-natal life, 155 Princeton college, 249 Probability curve, 78 , 80 , 441 Proctor fellowship, 249 Production, 307 Professional classes, 232 Professor's families, 228 Progressive changes, 39 Prohibited degrees of marriage, 222 Prohibition, 389 Propaganda, eugenic, 195 Prophylaxis, 252 Prostitution, 251 Protestant Christianity, 274 Protoplasm, 442 Prussia, 121 , 321 Pseudo-celibacy, 248 Psychiatry, 442 Psychopathic inferiority, 302 Ptolemies, 206
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