Such cases are not uncommon in history. A distinguished specialist in mental diseases called attention, in the London _Lancet_ not long ago, to the case of Nicias, the Greek general who was in charge of the Athenian expedition against Syracuse. Nicias undoubtedly had a genius for war and for politics when in normal health. Some of the mistakes committed by him, though, are of an order that indicate a lapse of mental control at certain times. Details given by a number of Greek historians point to the existence in Nicias of {246} symptoms of chronic nephritis, which at periods of great responsibility became exacerbated with consequent interference with normal intellection. The same authority points to certain otherwise inexplicable political mistakes in the life of Napoleon III. as due to the existence in him of a low-grade nephritis, consequent upon the presence of stone in the kidney. After his abdication, during his life in England, he had to be operated upon for this condition, and the calculi found had manifestly been in existence for many years. Even more important for the sake of the individual himself than for those he is in contact with is the recognition of his pathological condition. Nothing is more likely to cause kidney disease to grow rapidly worse than responsibilities heavier than the individual is accustomed to. When, then, there are symptoms of nephritis it is inadvisable for the patient to be made Superior, and if the symptoms develop after his appointment or election he should be relieved of his responsibilities, at least to a considerable degree. There are a number of cases on record in which failure to realise the necessity for this mode of action has been a cause of great unhappiness in religious communities, and not infrequently a shortening of a very precious life that might otherwise have been spared for long years of usefulness in some less demanding position. It is not impossible that paresis should develop in the Superior of a religious community. The disease is extremely rare among clergymen generally, and the statistics of asylums show that it is rarest of all among Catholic clergymen. Should it occur, however, it must constitute a quite sufficient reason either for a change of Superiors, or for the institution of such other safeguards as may, according to the special religious institute, be provided in order to prevent serious evil.