Undigested foodstuffs may become an irritant, or increase, as is usually the case, the established irritation, and thus bring on an acute attack of diarrhea. The immediate consequence of the acute attack may indeed be, and often is, comparatively beneficial, inasmuch as the diarrhea removes the undigested material that occasioned the irritation. When this removal is accomplished, the diarrhea usually subsides without treatment. This is the case, however, only when the patient has committed an infrequent error in diet. When such errors are habitual the burden on the glands of the intestinal mucous membrane becomes intolerable, and the chronic inflammation once established has a tendency to proceed from bad to worse. It will then be observed that digestion becomes more and more impaired. In such a case diarrhea will no longer serve a good end, but will on the contrary debilitate the system. A change to better dietetic habits will then aid, but will not suffice for cure. Only treatment and time will restore the inflamed parts to a healthy tone. When, however, the digestive tract is invaded by any of the many forms of bacteria, treatment will avail little and serious consequences follow rapidly. Too much cannot be said or done to secure intestinal cleanliness in infancy, childhood and maturity. Mothers and nurses cannot give this subject too much thought and care, since the welfare of future generations depends largely upon intestinal cleanliness, in view of the rich and racy life of our hothouse civilization. We are a people poisoned through constipation and diarrhea: two affections that derange more lives than all other pathological conditions together. Banish alimentary uncleanliness and you take most of the poisons from the human race--poisons that stunt the body and blunt the mind. The soul of man should dwell in a palace, not in a pest-house; in a human temple, velvety, lined with down, inside and out; in which there are hundreds of millions of lilliputian trappings, fittings and articles of furniture, to carry on the minute and finer functions and chemistry of the soul. The very multitude of the fine equipments that decorate the temple give it that beautiful blending of color and form which its coating has when in normal condition. They adorn this body-house with health, and supply it with the rich red wine of joy.