The Sitz-bath pan, though small, is yet of sufficient depth and diameter for all practical purposes, and can be placed wherever is most convenient--on a low chair or a box. The bather should sit on the instrument with the limbs on either side of the funnel through which the hot water enters the pan. Just below the funnel is an overflow tube, under which a vessel should be placed to catch the water as it flows out. While sitting on the pan the elbows may rest on any convenient support, so as not to tire the invalid too much during the bath, which should consume from half an hour to an hour, or longer if agreeable. Hot water may be added every few minutes as the bather finds that the tissues will tolerate it. Depurant powder may also be added to the water in the Sitz-bath pan. What has been said in a previous chapter on the therapeutic effects of hot water in the treatment of proctitis need not be repeated here. The three indispensable appliances for combating and effectually overcoming the pathological conditions to which this book and my two previous books--_Intestinal Ills_ and _How to Become Strong_--are devoted, are _The Internal Fountain Bath_, _The Intestinal Recurrent Douche_, and _The Shallow Sitz-bath Pan_. These appliances are well-nigh perfect for the uses to which they are adapted. CHAPTER XX. THE HEALTH OF SCHOOL CHILDREN. “Cleanliness of body was ever esteemed to proceed from a due reverence to God, to society, and to ourselves.”--_Bacon._ The International Congress on School Hygiene ended its fourth meeting at Buffalo recently to meet two years hence in Brussels. In the interim the Board of Education in this city, the Department of Health, and the New York School Luncheon Committee will continue their investigations as vigorously as in the past, and the information thus gained will be an important contribution to the next Congress. Too much attention cannot be given to the question of hygiene, diet, and excretion to meet the psycho-physical requirements of the mind and body in normal health. As a rule, diet is prescribed for the purpose of relieving the various annoying and painful symptoms caused by chronic impairment of the functions of the stomach and bowels, but when we find the cause of these various symptoms arising from a disturbed gastro-intestinal tract, the question of diet will receive less attention. Why has not the subject of normal intestinal excretion received as much attention as diet in health or ill-health? As our knowledge of the human psycho-chemical laboratory increases, we are able definitely to locate a diseased organ and account for the symptoms caused by the pathological condition of that organ; and when the diagnosis is properly made these symptoms become a secondary matter of treatment.