Those physicians who look upon such milder psychoses as varieties of simulation should be reminded that the methods we have just mentioned are not often likely to be effective in cases of real malingering. In discussing the therapeutic use of “firmness” we have not thought it necessary to mention those applications of this method which at times are practised by combatant officers at the front. The use of military authority to suppress the minor manifestations of nervousness, or the resort to such expedients as unexpectedly firing off a gun alongside a man afflicted with functional deafness, are merely examples of the application of “suggestion.” They are akin to the use of “firmness” by the physician who has not investigated the cause of the patient’s trouble. The results of such expedients are as erratic in the one case as in the other. But there is no need for us to discuss this practice further, except to add that the knowledge that such “treatment by military authority” has been tried before, still further diminishes the justification for resorting to such measures when the patient reaches the home hospital. _Isolation._ Many physicians regard isolation as an appropriate method of treatment for soldiers suffering from shock, and they urge in justification of such a procedure the success which often attends its use in civil cases. We do not deny the utility of isolation for suitable cases, and success has attended its use when the patient’s condition obviously required it. But the circumstances which were responsible for causing the mental disturbance in the soldier may be of a totally different nature from those which have upset the civilian; and therapeutic measures which may be appropriate in eliminating the civilian’s sources of irritation might be wholly unsuitable, if not positively harmful, in the case of soldiers.