Medical Psychologists have long been familiar with a peculiar form ofdisease which is characterised by a combination of disorders of theintellectual and motor faculties. The French physicians, to whom is due thehonour of having first minutely described it, have given to it variousnames, according to the views then generally held and the special opinionsof the individual observers: General incomplete paralysis (Delaye); generalparalysis of the insane (Calmeil); general progressive paralysis (Requin,Sandras); paralytic insanity (Parchappe), &c. In Germany the termsgeneral paralysis, paralysis of the insane, and most recently paralyticdementia have been generally employed. Familiar though this disease hasbecome to medical psychologists, and though much discussion has taken placeregarding it, within a narrow sphere, still slight has been the interesthitherto taken in extending that sphere. These poor patients, whosetreatment either cannot or can only with great difficulty be pursued in theordinary relations of life, who from henceforth appear hopeless, are gladlyhanded over to physicians to the insane, and with the entrance of thepatient into the asylum all interest in the disease ceases. The time is, Ibelieve, at hand when in regard to this, as well as to many other matters,the veil of the asylum will be removed, when once for all the barriers willbe thrown down which divide mental pathology, as we must still call it, fromthat of the remainder of the nervous system. Each has a series of facts tooppose to the other, and it is certainly surprising how many points ofconnection there are between them. The question is merely one ofcomprehension: mental pathology often manifests itself in a manner whichoutwardly is not easily understood, though it must be admitted sufficientpains have not always been taken to understand these manifestations.