A very well-written and scholarly presentation which ought to prove valuable to both clinicians and experimentalists. J.P. CHAPLIN, University of Vermont A very interesting and well written integration of many related areas. Undoubtedly a contribution to the areas concerned. JACK VERNON, Princeton University A fascinating and comprehensive study of past development and current state-of-the-art in this area. Dr. WILLIAM D. THOMPSON, Baylor University Part I is well written and provides an overview of the subject matter with broad strokes which blend into one another . . . the book does give a good historical perspective of the development of interest in the effects of isolation . . . . The bibliography . . . is one of the most complete of published bibliographies in this field. American Journal of Psychiatry.