It is well known that there is little constancy in the outside situation, associated with the emotion of anger. What one will take as an insult, another will regard as a joke. With the same individual, what will at one time excite anger, will at another be scarcely noticed. We commonly say, referring to some incident, “There was nothing for him to be angry about,” and the statement may be correct if the outside situation is viewed as the stimulus to the emotion. With the insane and hysterical, an observer is often baffled by the apparently harmless idea that will excite anger. The fact is, the situation stimulating anger is a psychic one. We fail in viewing our emotional life in the same manner as we do in observing our sensations. Whatever the outside conditions, it is the psychic situation as only a partial reflection of outside conditions, that is of primary importance. A few instances of the current views of the situation exciting anger may be given. What may be called a genetic view is illustrated in McDougall’s (15) statement, “The condition of its (anger) excitement is rather any opposition to the free exercise of any impulse, any obstruction to the activity to which the creature is impelled by any one of the other instincts.” Dewey (6) in his conception of instincts has pointed out that we are not angry when we are fighting successfully. Only when the pugnacious instinct is impeded does emotion arise. An introspective view may be taken from Bain (2), “When we have suffered harm at the hands of another, it leaves a sting in the violation of the sanctity of our feelings. This pre-supposes a sentiment of self regarding pride, the presence of which gives rise to the best developed form of anger.” David Irons (12), who did some keen work in the analysis of the emotions, does not qualify his statement that anger appears only when we feel that we have been injured. From the pathological side, Féré (7) and Magnan (11) have described slow accumulation of anger in paranoiacs, which seems to re-enforce the casual introspective view stated above. These insane persons first believe they are persecuted. They suspect all about them. Even their very best friends are trying to injure their business or reputation. Gradually reactionary impulses begin and they themselves become the persecutors and concern themselves with the business of revenge. They find gratification in every sort of angry outburst,—insult, abuse, threat, murderous attack, irony, witticism, etc. The same view has been advanced by Steinmetz (18) in the observation of the behavior of primitive people. He holds that revenge is essentially rooted in the feeling of power and superiority. It arises upon the experience of injury and its aim is to enhance self-feeling, which has been lowered by the injury suffered.