3rd.--If the condition is neglected it may ruin the health of the child for the whole period of its life. NERVOUS OR PERSISTENT COUGH Cough in an infant or growing child is usually the result of a cold and the structure affected is some part of the nose, throat or bronchi. It is a comparatively simple matter to discover just where the trouble is and to prescribe the appropriate remedy and effect a cure. There is another type of cough, however, that is of quite a different character. This cough will begin as an ordinary cough and it will only be discovered that it is not an ordinary cough because nothing will apparently cure it. We mean that the child is given cough remedies that usually cure a cold, is kept in the house and carefully watched for a sufficiently long period to justify a cure, and yet, despite this care and attention, the cough remains the same. The child is not sick, the appetite is good, there is no fever, it plays and seems to enjoy good health, yet for weeks and frequently for months the annoying cough hangs on. It is as a rule worse at night. It begins soon after the child falls asleep and spoils the entire night's rest or a great part of it. It may be a dry, hard, hacking cough, or a croupy, harsh bark. It may come in spells with a considerable interval between them, during which time the child falls asleep, or it may be almost constant, not quite severe enough to rouse the child, but bad enough to spoil the child's rest and the rest of the mother. If this condition lasts for a long time, as it occasionally does, the health of the little patient is apt to suffer from loss of sleep. Treatment.--These children should be taken to a good physician and thoroughly examined. Special care should be devoted to investigating the condition of the nose, throat, ear, stomach, heart, and lungs. A very large majority of these coughs are caused by adenoid growths in the back part of the nose. The child may not look like an adenoid child, nor may it breathe through its mouth when asleep, and it may have had its adenoids removed, yet in spite of these contra-indications it may have enough loose adenoid tissue in its nose to cause this kind of persistent cough. This has been proved many times. It is not only useless but positively harmful to give these children cough remedies. The cause of the cough must be found and treated. The cough may be indirectly caused by anemia (poor blood) or heart or stomach trouble, or it may have a number of other causes. Whatever it is it must be found by a careful physical examination or a number of careful physical examinations, because these cases are as a rule obscure and difficult to diagnose, and even the most expert examiner cannot always tell where the trouble is without seeing the child a number of times. The parents must therefore have patience and confidence in the physician and must aid him all they can by watching and reporting all the symptoms, etc., to him. (See article on Adenoids).