This volume is an historically based critical evaluation of Freud's personality theory. In it the observations Freud made are described and the theoretical ideas he put forward for explaining them are set out. The adequacy of Freud's explanations are judged against the logical and scientific standards of Freud's own time. The historical perspective will give the reader a sound basis on which to make a judgement about psycho-analysis as a method of investigation and a theory of personality as well as a sense of what Freud was about from Freud's own standpoint. Freud's endeavour is sited in the psychological and psychiatric context of the time, a period not previously given the critical attention it warrants. All of Freud's important assumptions and characteristic modes of thought are to be found in this formative period. The placement also brings out more clearly the basis of a number of the unresolved problems of contemporary psycho-analytic theory, such as the place of affect and the instinctual drives, the role of the ego, and the basis of treatment.