DISCUSSION: Dr. Morton Reiser agreed that psychoanalytic metapsychology has its weaknesses but objected to the implication that these weaknesses are primarily responsible for lack of interest in psychoanalysis as a choice of profession. Inadequacy of the theory to explain clinical phenomena may also be a reflection of the immaturity of psychoanalysis as a science. Dr. Martin H. Stein felt that 'deciding what level of discourse is to be employed' obviates much language confusion and scholastic dispute between theoreticians; tolerance of incongruities may lead to confusion and sterility of theory but also may be necessary for effective psychoanalytic work. He believes the solution may lie in recognizing and making explicit the apparent incongruities, such as Waelder attempted to do in The Principle of Multiple Function. Drs. Henry Edelheit and George