Keeping a Sound Mind: By John J. B. Morgan. New York: The Macmillan Company, 1934.

This well-meant book is "offered as a basal textbook for courses in mental hygiene" in colleges. It is based on the belief "that it is just about as easy to form the beneficial habits as it is to fall victim to the detrimental habits, if the person involved can be given a clear conception of their relative significance". Thus the prevention and cure of mental disturbances becomes quite simple. "It takes the work of the laboratory psychologist to formulate the principles of mental life and the clinical work of the psychiatrist … to show how the failure to apply the principles of mental health results in mental disease." The book purports to give the hygienic rules of the game. All the individual need do to avoid mental disturbances, including even the psychoses, is to follow these rules. They are: to achieve independence, not deceive yourself, bring your unconscious attitudes to awareness, keep your mental conflicts wholesome, master fear, avoid regression, and similar excellent but impracticable rules, surely born more of the library than of the clinic. The unconscious is acknowledged but represented as of no great importance, and as more or less easily accessible and changeable by the individual himself, if he cares to