The 44 who have the mentality of a ten year old child and under were unhesitatingly pronounced mentally defective. The 72 showing mentality from ten to twelve years may possibly not be so-called. The 67 others included among the 107 are those so mentally defective that there can be no question as a matter of observation. Fifty-two others are distinctly border line cases. This is the group which gives the most trouble in all reformatory institutions. It is safe to say that 90 percent of all disciplinary difficulties come from cases of this sort. They can be easily divided into at least two groups. Thus divided, 26 are girls who can be taught very little in school, whose general intelligence is low, but who may perhaps be able to learn a certain amount of manual labor; these cannot "stay good" any length of time. The other 26 are those who do well in school, are capable of mastering even such subjects as algebra and bookkeeping, but who have no moral sense or continuity of purpose. Eleven others are also properly in this class but differ from the two preceding groups in the character of their instability. If they were boys they would be tramps. They are all girls who have run away from home, sometimes a number of times, as well as from any place where they are put to service. The foregoing figures mean that 193 individuals, or 29.8 percent, of the number studied are decidedly mentally defective. This is an extremely conservative estimate. With the facilities which we are to have in the Laboratory of Social Hygiene under the auspices of the Bureau of Social Hygiene, we expect to get much more definite results not only as to the mentality but also as to the physical condition and the social relations of the young women under our care. _Venereal Disease_:--The records of the Bedford Reformatory for girls show that 20.56 percent of the 647 inmates have clinical manifestations of venereal disease. The facts are summarized in the following table: Total number of inmates 647 Number free from clinical manifestations of disease 514 Number showing clinical manifestations of disease 133 Of the last named: Number with syphilis 61 gonorrhoea 54 syphilis and gonorrhoea 9 " " disease unnamed 8 " " chancre 1 --- Total 133 (20.56%)