This careful and critical methodological study (a Duke University doctoral thesis) of the systems of Lewin and Koffka with regard to memory will interest few psychoanalysts who have not also dabbled in academic psychology. Dr. McColl attempts first to present the systems of Lewin and Koffka, second to examine their systematic possibilities methodologically, and third to test the explanatory value of each with respect to certain memory phenomena. As to the first, she succeeds in showing a Graduate School examining board that she understands the system in question but she can scarcely be said to have given an adequate introductory presentation. As to the second, she succeeds in a partial synthesis of two positions which have unquestionably different theoretical backgrounds. Of these she gives a careful and sometimes very suggestive methodological critique. In her third aim of critical evaluation she concludes that both systems are equipped to produce fruitful acquisitions to knowledge but that until we have a more