Stenquist, Thorndike, and Trabue (_54_) report the results with the Binet 1911 tests, under a slightly modified procedure, for 75 randomly selected dependent and 4 delinquent girls cared for by a certain county, excluding those children within the county sent to an institution for the feeble-minded. The children were from 9 to 16 years of age, with a medium age of 11 years. The line between the delinquent and dependent groups with these younger children becomes rather obscure. They state: “A child may, in the county in question, become a public charge by commitment by an officer of the poor-law on grounds of destitution, or by an officer of the courts on grounds of delinquency.... The decisive factor is often simply whether the parents are more successful in getting justices to commit their children than in getting poor-law officers to do so.” With the detailed records which they give it is possible to apply our standard even for the immature, although it is certainly less adequate for those under 15 years of age tested by the 1911 scale. I have translated their corrected Binet ages back to the original test ages, since their summary of retardation in terms of years below average ability at each age is not comparable with our borderline. Among the 79 girls who are mostly dependent, there are 5 girls, or, 6%, who fall within our presumably deficient group and 8 in the doubtful group, a total of 16%. So far as serious deficiency is concerned the situation is undoubtedly worse among delinquents than among corresponding groups of dependents. The figures of these investigators show this for their group of boys, to which we shall refer later.