The above statements are not offered so much in opposition to other estimates of the proportion of defectives among offenders as to show the possible variation of findings in different situations where delinquents may be seen, and to show the nature of the work of the psychologist in courts. We can easily see why institutions for delinquents contain a greater proportion of mental defectives than is found in court work, for obviously the brighter ones are handled under probation, are found positions and succeed better on the outside because they have more foresight and learn better by experience. It may be that a larger percentage of the defectives will be found in studying older groups in court work. Perhaps the brighter individuals cease earlier to be offenders. I await with interest comparative findings from the newly established municipal court psychopathic institutes, in Boston and in Chicago. But of course fair general statistics can never be made without covering an unselected series of court cases, such as we have recently undertaken. We must not find reason from the above figures to underestimate the exceedingly important problem of feebleminded offenders. From their ranks one has to come to know some of the most frequent repeaters, some of the worst teachers of vice, and even some of the most adept in such skilled criminalistic occupations as burglary. To answer the problem of their care would be to relieve a strain on society that is not even suggested by a statement of their proportionate numbers among offenders. No one has been more surprised than we ourselves to find the extent to which morons are actively engaged in criminalistics, and are even definitely the instructors of others. The general notion that this class is merely easily led is altogether erroneous. The extent of our findings of a single disease, namely epilepsy, among our repeated offenders we have often commented on. We need only to mention that about 7 per cent. have been found afflicted with various forms of this trouble. After all, this is only what might have been expected from similar observations of others elsewhere. The psychic manifestations of this disease make the victim a fit subject of study by the psychopathologist.