“…Sargant (1967) has suggested that members of the imipramine group are useful in endogenous and MAOT groups in neurotic depression. These observations have been confirmed by many (Ayd, 1959;Blair, 1960;Friedman, DeMowbray and Hamilton, 1961;Greenblatt, Grosser and Weschsler, 1962;Keup et al, 1960;Kiloh, Ball andGarsidè, 1962, Lehmann, 1965) while others have failed to confirm Kuhn's original finding (Abraham et al, 1976;Fleminger and Görden, 1962, Rees et al, 1961, and Spear et al, 1964. The diagnostic criteria of endogenous depression have not been spelled out in most instances and thus predictive value is lost.…”