The preparation for the waters of Ems, as of all other mineral springs, is of the greatest importance, and is but too little attended to. Many patients repair to these sources, either exhausted by long-continued illness and the fatigues of the journey, or in a state of excitability from tonics and other medicines. In the one case some restorative remedies are to be exhibited, and in the other, quietude and saline aperients are necessary before the waters are used, internally or externally. Temperance is indispensible both before and during the use of the waters. GENERAL RULES FOR TAKING THE WATERS AND BATHS. The best season is between the beginning of May and the end of September. The waters are taken early in the morning. Weakly persons should begin with small portions, till they are accustomed to the springs. The morning is also considered the best time for bathing. The patient should immerse himself slowly—first to the knees—and afterwards the whole body, having first sponged the face and neck. Those who are subject to determinations of blood to the head should keep a handkerchief moistened with cold water to the head during the bath. A bladder of cold water is still better. The individual should not lie quiet in the bath, and much less should he go to sleep. He should keep constantly rubbing or sponging the body or limbs—and if not able to do this, a servant should do it for him. He should not remain more than ten minutes in the water, at first—and he should gradually increase the time to half an hour or more. Those whose skins are very sensitive ought to bathe in a flannel dress. The temperature should be from 94° to 98° of Fahrenheit. On leaving the bath, the individual ought to wrap himself up in a warm sheet, and when dry to dress himself. It is recommended then to retire to his bed-room and remain lying on the bed for a quarter or half an hour, but without sleeping. Those who are aged, weakly, or nervous, may take a glass of milk or a cup of coffee, after the bath. Most people can take a glass of milk and Ems waters mixed. The latest time for bathing is two hours before dinner. One bath in the day is quite sufficient.[52] The waters are drunk, sometimes before, sometimes after bathing. They should be sipped warm at the source, otherwise some of their volatile qualities are lost. The quantity taken, like that of food, must be regulated by the power of digestion. Too much water, like too much food, will produce the same distention and discomfort of stomach. The same temperance and frugality is necessary in both cases. From two to three wine-glassfuls of the waters taken twice, thrice, or four times, at intervals of a quarter of an hour, will in general be sufficient. Some cow’s or goat’s milk may be mixed with the waters. Gentle exercise, between the doses of water, is essentially necessary. In some cases it may be proper to take a few glasses of the waters two or three hours after dinner—not sooner.