Edward A. Strecker, the coeditor of this issue, points out that the simpler patterns of the mentally defective child yielded much valuable information for the understanding and interpretation of normal behavior.

Gerald H. J. Pearson reviews the psychopathology. He coördinates Goddard's characterization of feebleminded persons with Freud's theory of the structure of the mental apparatus, and he concludes that the main defect of the mentally defective person lies in the structure of the ego and—as a special part of it—the superego. Some of the manifest results may be great ambivalence, difficulty of control of aggressive impulses, a disturbed love relationship between child and parents (a vicious circle), feelings of inferiority or lack of self-criticism, or both.

G. Henry Katz, in his article about Re-educational Therapy, states that a greater frequency of emotional disturbances is characteristic of feeble-minded