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This excellent volume is divided into four chapters, each written by an authority in his field. In chapter I, on the measurement of man in the mass, the late J. Arthur Harris points out that human attributes are rigidly lawful in their frequency of occurrence and that, when man is studied in the mass, many definite relationships can be detected and quantitatively expressed which would be overlooked if attention were limited solely to the consideration of individuals. The author discusses fully the measurement of type in masses of mankind, the measurement of interrelationship between the characteristics of man in the mass, and the measurement of the relationship between physiologic and physical characteristic in man. In chapter II, on normal and abnormal human types, Clarence M. Jackson discusses the various racial types of mankind, types of body build, and comparative studies on the height, weight, weight-height index, chest circumference and expansion,
A Sat, study studied this question.