(7) The weight of the digestive-ash may range (moist) from 10 grams to not more than 40-50 grams a day, according to the food; the latter estimate being based on a vegetarian diet, and may not call for excretion for several days; smallness indicating best condition. Foods differ so materially that the amount and character of the excreta cannot be accurately specified. Some foods and conditions demand two evacuations daily. Thorough and faithful Fletcherizing settles the question satisfactorily. (8) Fruits may hasten peristalsis[G]; but not if they are treated in the mouth as sapid liquids rather than as solids, and are insalivated, sipped, tasted, into absorption in the same way wine-tasters test and take wine, and tea-tasters test tea. The latter spit out the tea after tasting, as, otherwise, it vitiates their taste, and ruins them for their discriminating profession. [G] Forwarding muscular movement which advances food along the whole extent of the alimentary canal. (9) Milk, soups, wines, beer, and all sapid liquids or semi-solids should be treated in this manner for the best assimilation and digestion as well as for the best gustatory results. (10) This would seem to entail a great deal of care and bother, and lead to a waste of time. (11) Such, however, is not the case. To give attention in the beginning does require strict attention and persistent care to overcome life-long habits of nervous haste; but if the attack is earnest, habits of careful mouth treatment and appetite discrimination soon become fixed, and cause deliberation in taking food unconsciously to the feeder. (12) Food of a proteid value of 5-7 grams of nitrogen and 1,500-2,500 calories of fuel value,[H] paying strict attention to the appetite for selection and carefully treated in the mouth, has been found to be the quantity best suited to economy and efficiency of both mind and body in sedentary pursuits and ordinary business activity; and, also, such habit of economy has given practical immunity from the common diseases for a period extending over more than fifteen years, whereas the same subject was formerly subject to periodical illness. Similar economy and immunity have shown themselves consistently in the cases of many test subjects covering periods of ten years, and applies equally to both sexes, all ages, and other idiosyncratic conditions. [H] The organic materials of human diet are usually classified into three divisions:-- (1) The Proteids, or Albuminates--the characterising element occurring being nitrogen. The nitrogenous foods are: flesh (without the fat), eggs, milk, cheese, legumes (peas, beans, lentils, etc.). (2) The Fats, or Hydro-carbons. All animal and vegetable fats and oil. Emulsions of mineral oils have been shown to pass through the system unchanged, and therefore cannot be regarded as food. (3) The Carbohydrates (sugars and starches): bread, potatoes, and grain generally.