REVOLUTIONARY ERAS OR EVEN TIMES OF PSEUDOREVOLUTIONARY UNrest usually do not present the most propitious moments for historical retrospective, but perhaps it is precisely then, and therefore now, when renewing one's acquaintance with the wellsprings of the past is most refreshing. Psychoanalysts, of course, are not likely to have forgotten this because psychoanalysis is not only a method or process or a body of data, but is also a new kind of science whose meaning can be fully encompassed only by seeing it as a history. It is therefore neither a lack of concern for the