Chapter XI. DEFICIENCY AS A CAUSE OF DELINQUENCY 210

A. THE CHANCES OF THE MENTALLY DEFICIENT BECOMING DELINQUENT 211

B. THE CORRELATION OF DEFICIENCY AND DELINQUENCY 218

C. THE CAUSES OF DELINQUENCY 224

(a) Constitutional Factors 224

(b) External Factors 225

(c) Weighing Heredity Against Environment 229

(d) The Criminal Diathesis 234