Taking up the younger and milder girl delinquents, Dr. Haines reports the examination of an unselected group of 329 at the State Girls Industrial Home near Delaware, Ohio (_26_). They were all under 21 years of age and represent less hardened delinquents than the older groups at the reformatories for women. The Ohio group was tested with the Binet 1911 scale as well as with the Yerkes-Bridges Point Scale. Counting a result of .8 of a year as placing the case under the next mental age above, as we have in fixing the limits, we find that his results are given with such excellent detail that we may fairly compare the percentages with our standard for the Binet Scale. On this basis 70 of these delinquent girls (21%) are clearly deficient and 55 more are in the uncertain group, a total of 38%. As a check upon results, we may compare the report of Miss Renz for 100 consecutive admissions to the same institution in 1912, tested with the Binet scale (_47_). She found 29 tested IX or under, 49 tested X or under, slightly more than was shown by the Haines tests. Miss Renz' report, however, does not show how many of the girls were under 14 years of age and might thus be excluded from the deficient groups. In the California School for Girls, Grace M. Fernald[17] examined 124 cases as they entered the school. Twenty-four tested under XI with both the Binet 1911 and Stanford revision. This is a further indication of the less frequency of feeble-mindedness in the state schools for girls than in the reformatories for women. Dr. H. W. Crane reports the results of the Binet testing at Adrian, the Michigan Industrial School for Girls, which receives only minors and corresponds to the Ohio Industrial Home (_37_). The Binet 1911 scale was used, but this grouping in mental ages may mean that a few more cases are thus classed deficient than with our standardized borderlines which place the subject in the higher age group when he scores .8. It is to be remembered also that the borderlines for those whose life-ages are under 15 have not been as well standardized with the 1911 scale. The testing was done under the direction of a state commission appointed to investigate the extent of mental defectiveness (_37_). Dr. Crane was assisted by three other workers. The results at Adrian show, among the 386 inmates, 131 or 34% tested in our groups of presumably or uncertain intellectual deficients. Seventy-seven of these, in our uncertain group, should only class as deficient because also delinquent. The investigators give it as their opinion that 16.7% of the inmates were feeble-minded but not reached by the tests.