The Boston cooking-school cook book

office of the carbohydrates is to furnish energy and maintain heat. They contain carbon, hydrogen, and oxygen, and include foods containing starch and sugar. Examples: vegetables, fruits, cereals, sugars, and gums. The chief office of fats and oils is to store energy and heat to be used as needed, and constitute the adipose tissues of the body. Examples: butter, cream, fat of meat, fish, cereals, nuts, and the berry of the olive-tree. The chief office of mineral matter is to furnish the necessary salts which are found in all animal and vegetable foods. Examples: sodium chloride (common salt); carbonates, sulphates and phosphates of sodium, potassium, and magnesium; besides calcium phosphates and iron. Water constitutes about two-thirds the weight of the body, and is in all tissues and fluids; therefore its abundant use is necessary. One of the greatest errors in diet is neglect to take enough water; while it is found in all animal and vegetable food, the amount is insufficient. CORRECT PROPORTIONS OF FOOD Age, sex, occupation, climate, and season must determine the diet of a person in normal condition. Liquid food (milk or milk in preparation with the various prepared foods on the market) should constitute the diet of a child for the first eighteen months. After the teeth appear, by which time ferments have been developed for the digestion of starchy foods, entire wheat bread, baked potatoes, cereals, meat broths, and occasionally boiled eggs may be given. If mothers would use Dr. Johnson’s Educators in place of the various sweet crackers, children would be as well pleased and better nourished; with a glass of milk they form a supper suited to the needs of little ones, and experience has shown that children seldom tire of them. The diet should be gradually increased by the addition of cooked fruits, vegetables, and simple desserts; the third or fourth year fish and meat may be introduced, if given sparingly. Always avoid salted meats, coarse vegetables (beets, carrots, and turnips), cheese, fried food, pastry, rich desserts, confections, condiments, tea, coffee, and iced water. For school children the diet should be varied