The removal of the cause of the disorder, then, in a large number of instances of derangement of the stomach and bowels, if effected early, will cure the disease, and without further remedy. But it will be asked, by what method is this cause to be detected? In this way. In all human probability the primary cause of the disorder is connected with the diet; this is the case in ninety-nine instances out of a hundred. Well, then, is the sick child at the breast? If so, ascertain whether the breast-milk is healthy and wholesome, or whether any circumstances exist which have rendered it otherwise? If nothing faulty is found here, the next question would naturally be, whether the rules and regulations laid down for suckling have been strictly adhered to? Or, whether the infant is sufficiently old to render it at all probable that a tooth may be irritating the gum? Perhaps the child is being weaned; well, is there any error here? Is the change being attempted too early? or too suddenly and abruptly? If this is not the case, then, has the child been overfed, or is the food given of the proper description? Is the child being brought up by hand? Then, there is every reason to suspect, either that the quality of the food given is not the most suitable, or, that the quantity exhibited is too great; in fact, that the rules laid down for "artificial feeding" have not been strictly acted upon. By a mode of investigation like this, any defect or error in the dietetic management of the infant producing the disorder will be easily detected by a careful mother; and its correction alone will, in very many instances, be all that is necessary to remove the symptoms. For example, if flatulence and griping, followed by diarrhoea, occur to an infant at the breast; if at the same time it becomes pale, its flesh flabby, its disposition fretful, always crying until it is put to the breast, the nipple of which it grasps eagerly, sucking eagerly, yet never satisfied, for its hunger continues, it is not nourished; if, too, the more it sucks, the more the stomach and bowels are deranged, the more it vomits and is purged; depend upon it the cause of all the evil will be found to be unwholesome milk. No medicine will avail any thing here; the cause must be removed; the best medicine, and the only remedy, is a breast of healthy milk. And if this is not procured early, there will be great danger of a diarrhoea setting in, which may probably prove fatal to the child.