As part of the preparatory work in planning for research on mental health in industry, a review was undertaken of relevant previous studies by staff members in the Institute for Social Research. The purpose of the review was to determine what conditions in the social environment have been found to be associated with certain types of behavior, in order that future investigations might benefit from earlier results wherever possible. The types of behavior to be examined were those with obvious interest for students of mental health; specifically, they were ones described by Marie Jahoda in her book, Current Concepts of Positive lllental Health (1958). After eliminating those for which data in the Institute's archives were negligible, the following classes of behavior remained as the major categories for this report: ( a ) affective states, both pleasant and unpleasant; ( b ) contact with reality; ( c ) self-evaluation; ( d ) motivation to grow and to use abilities; and ( e ) maintenance of stable interpersonal relationships. These correspond to five categories (1, 2, 5, 6, and 7) of the eleven proposed by French and Kahn. Differences between the category designationsproposed here and those used by French and Kahn are intended to reflect the limitations of the empirical data. Thus, the previous work of the Institute relevant for Category 1, attitudes and perceptions toward the self, is wholly in the area of self-evaluation. Accordingly, the more specific title, self-evaluation, is used in this article.The findings are from field studies of industrial organizations, from studies of other organizations, and from experiments in industrial and laboratory settings. The subjects are workers, college students, or other individuals who for the most part are well enough to hold jobs, attend school, or take an active part in community life. Because the participants in these studies are relatively healthy, their behaviors seldom approach the intensity or duration of a "symptom" in the usual sense of that term. Nevertheless, as the content of this review should 48