Put more concretely in the terms of available tests and criteria, open to the psychiatrist, does not every putative Shell-shock soldier deserve at some stage a blood test for syphilis? Should we not be reasonably sure we are not facing a man inadequate to start with, so far as mental tests avail? Should we not verify (even at considerable expense of time and money by so-called “social service” methods) the facts of epilepsy and epileptic taint? Of alcoholism? And so on? There can be no two answers to these questions. Upon the following page is a practical grouping of mental diseases, devised in the first place, not for war psychoses, but for the initial sifting of psychopathic hospital cases. Now the psychopathic hospital group of cases constitutes in peace practice the closest analogue of the mental cases met in active military practice, because the “incipient, acute, and curable”[1] cases, for which psychopathic hospitals are built and which flock to or are sent to the wards and outdoor departments of such hospitals, are precisely the cases that early come forward in active military practice. They are precisely the cases in which that pathological event--whatever it is--we know as Shell-shock may be expected to develop. It is precisely the “incipient, acute, and curable” instances of mental disease which we hope to exclude from our American army by cis-Atlantic winnowing-out at the hands of neuropsychiatric experts--the best preventive we hope both of Shell-shock and of other worse mental conditions, if such there be. Military mental practice plainly deals, not so much with frank and committable insanity, as with mental diseases of a medically milder but a militarily far more insidious nature. [1] Official phrase for the scope of the Psychopathic Hospital, Boston, Massachusetts.