=Mixed Diet.=--In infancy the digestive powers are weak and undeveloped, and food must be taken in its simplest form. Milk alone, at this period of life, seems best adapted to sustain life and growth. After this period has been passed, no single article of food furnishes all the principles necessary to support the growth, repair the waste, sustain the strength, and preserve the health. A mixed diet, therefore, becomes necessary. =Feeding Children.=--There is no greater error in the management of children than that of giving them animal diet too early. That portion of the digestive apparatus intended to dispose of this kind of diet is in an embryonic condition up to a certain age, and in the efforts of digestion, inflammation, possibly convulsions and death, may follow as the immediate result. Impaired digestion acquired in childhood is apt to continue through life. The structure of the human body being so largely dependent upon good, wholesome food taken at proper intervals, the importance of laying a good foundation in childhood needs no argument. The practice of allowing children to eat at short intervals through the day is exceedingly deleterious. Cakes, nuts, fruit and other good things, in carefully regulated quantities, should form a part of the regular meal, when the children are old enough to have them, and should not be eaten between meals. When it is remembered that one-half of all the children born into the world die before reaching the age of sixteen, the importance of children’s diet becomes apparent. =Selection.=--In the selection of food, reference should be had to climate, season, occupation, and suitability. The races of the far North subsist largely on the blubber of seals and other fatty substances. In the winter season, persons living in the temperate zones require more of the heat-producing foods, and in summer, fruits and vegetables are more largely used. The man who leads an active out-door life consumes more oxygen, and requires not only more food, but of a kind that will rapidly build up muscle and impart strength. And not the least consideration, in the selection of food, is that of suitability or adaptation to the individual’s condition or peculiarity. “What is one man’s meat is another man’s poison,” says the old proverb. Most persons have found that certain fruits or vegetables or other articles of diet, which are generally considered wholesome, do not agree with them. It is important that each individual should study his peculiarities, in this respect, and abstain from eating or drinking those things which experience has shown will produce discomfort.