This psychiatric dictionary, combining as it does features of a handbook, an encyclopædia and a lexicon, fills a need for physicians, social workers and others interested in psychiatric and sociological literature. It is often confusing that so many psychiatric terms are used in various and varying senses by different writers and even by the same writer. The authors of this dictionary have gone to great pains to remedy this defect by quoting from original sources many definitions and concepts. This is especially noticeable in the field of psycho-analysis, where often as many as three quotations from qualified investigators tend to round out the concept. An initial work covering so wide a field must necessarily show omissions here and there and perhaps disproportionate emphasis in certain particulars. But as it stands at present the book is well nigh indispensable for the library of any psychiatrist and the future editions which seem destined to follow will undoubtedly extend the scope of a careful and painstaking work.