This book was published in 1918. Its contents are: Part I Man's Supreme Inheritance - From Primitive Conditions to Present Needs; Primitive Remedies and Their Defects; Sub-consciousness and Inhibition; Conscious Control; Applied Conscious Control; Habits of Thought and of Body; Race Culture and the Training of Children; Evolutionary Standards and Their Influence in the Crisis of 1914; Part II Conscious Guidance and Control - Synopsis of Claim; The Argument; The Processes of Conscious Guidance and Control; Conscious Guidance and Control in Practice; Apprehension and Re-Education; Individual Errors and Delusions; Notes and Instances; Part III The Theory and Practice of a New Method of Respiratory Re-Education - The Theory of Respiratory Re-Education; Errors to be Avoided and Facts to be Remembered in the Theory and Practice of Respiratory Re-Education; and The Practice of Respiratory Re-Education.