Ringworm.--This distressing and most infectious trouble is due to a small parasite. Where that settles in the skin, a reddish _ring_ soon appears, and gradually widens, leaving a leprous white patch of skin within it. Care should be taken at once to cure this, as, if it spreads widely, serious results follow. Fortunately it is slow in growth, and can easily be checked and cured. The method of cure is to soak the rings well with vinegar or weak acetic acid. Of strong acid use three tablespoonfuls to a quart of water. By even the first good soaking with this, the developed parasites are killed, but the eggs are not. These hatch out by degrees, so that renewed soaking and "dabbing" with the acid and a soft cloth are required. Each application may be continued for fifteen minutes. If the hair, as on the head, interferes, it may be cut closely, but need not be shaved. In a bad case the daily soaking with acid may not be sufficient. Then a poultice of potatoes and buttermilk (_see_ Buttermilk Poultice) may be applied first, and afterwards the weak acid. Secure that there be felt, before the close of each application, a _slight smarting_, to show that the acid has really soaked in. It is not difficult to guard against its spreading in a family or school. All that need be done is, once a week or so, to see that the whole skin of those exposed to infection, head included, is freshened by a wash all over with vinegar, and then protected with a gentle rub of olive oil. If this is done we should have little fear of contagion. Such a weekly freshening would ward off other evils as well as this one. Rose.--_See_ Erysipelas. Rupture.--The abdomen is formed of a series of _rings_ containing the bowels, and holding them in proper position. If the muscles and tissues holding these rings _yield_ so as to permit them to separate a little, what is called "rupture" takes place. It may be caused by violent muscular efforts, heavy weight lifting, jumping from a height, etc., etc. The rings are not broken, but only displaced, and especially with young persons, the "rupture" can soon be brought all right, but even with the aged, in all cases it may be mitigated, if not cured, by proper treatment. The first thing is to replace any part of the bowels which may have escaped through the opening of the rings. Lay the patient flat on his back. He must not be treated in any other attitude. Then rub the swelling gently _downwards_. It _must not_ be rubbed upwards, or it will be made worse. This rubbing will soon bring the bowel into its proper place. Give some time and kindly care to this treatment, which is very important. Then get a surgical instrument maker to fit a proper truss. See that this really fits. If it hurts in any way when first put on, it does not fit well enough. Avoid for a considerable time any effort likely to strain the part. Take light and easily digested food; give up all alcoholic drinks and the use of tobacco.