The Binet tests were applied to 289 of the 300 women examined, and other psychological tests were applied in doubtful cases. The ages ranged from 12 up. Only 10 were under 15 and 32 were 36 years of age or over. The investigators classed no case as feeble-minded which did not test XI or under, but they did not class as feeble-minded 107 other cases which tested XI and under. The Commission's diagnosis is therefore conservative. It regarded 154 cases (51%) as feeble-minded, 46 in the detention house group and 54 in each of the others. If we ask how many tested below our standard we can not tell exactly, since the report does not state whether X.8 was classed as X or XI. It shows 81 tested IX or under (27%) and these were nearly all, therefore, within the limits of our group presumably deficient. Ninety-nine others tested X, a total of 60% testing below our borderline for presumable and doubtful deficients. Since only 2 cases were under 14 years of age, these figures could not be much disturbed by the younger girls. We can be reasonably sure, then, that at least 27% of these prostitutes should be placed under permanent custodial care, and probably 50% would be more nearly correct. In a recent report of the Bureau of Analysis and Investigation of the New York State Board of Charities[16] Dr. Jesse L. Herrick reports testing 194 inmates of the state reformatory for women known as the Western House of Refuge. The Stanford Scale was used, 25% tested IX or under with that scale and 14% tested X. In the same bulletin the report is made of Binet ages for 607 inmates of the New York Training School for Girls. Four versions of the scale were used so that the estimates are somewhat affected. Moreover, 97 girls were under 15 years of age. The table of Binet ages indicates 20% testing IX or under and 28% testing X. Hill and Goddard (_30_) report examining a group of 56 girls who had been in a reformatory and were under probation with a certain officer. In this entire group they found only four who were not feeble-minded, “as we usually define feeble-mindedness.” Presumably this means three or more years retarded, including those who tested XII, so that it cannot be regarded as a conservative estimate. No further data is provided for interpreting the borderline.