Description
Include bibliographical references.I. A criticism of recent American work, by David Heron.--II. On the continuity of mental defect, by Karl Pearson and G. A. Jaederholm.--3. On the graduated character of mental defect and on the need for standardizing judgments as to the grade of social inefficiency which shall involve segregation ... by Karl Pearson.
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Language Material Electronic Resource
Jaederholm, Gustav A. (Gustav Aksel), 1882Pearson, Karl, 1857-1936Heron, David
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