An invariable rule with regard to the food of children should be that their meals should be regular, that they should consist of good, varied, nourishing food taken at regular hours, and that nothing should be eaten between meals. The practice of eating biscuits, fruit, and sweets between meals during childhood and adolescence not only spoils the digestion and impairs the nutrition at the time, but it is apt to lay the foundation of a constant craving for something which is only too likely to take the form of alcoholic craving in later years. It is impossible for the stomach to perform its duty satisfactorily if it is never allowed rest, and the introduction of stray morsels of food at irregular times prevents this, and introduces confusion into the digestive work, because there will be in the stomach at the same time food in various stages of digestion. Warmth.--Warmth is one of the influences essential to health and to sound development, and although artificial warmth is more urgently required by little children and by old people than it is by young adults, still, if their bodies are to come to their utmost possible perfection, they require suitable conditions of temperature. This is provided in the winter partly by artificial heating of houses and partly by the wearing of suitable clothing. Ideal clothing is loose of texture and woven of wool, although a fairly good substitute can be obtained in materials that are made from cotton treated specially. This is not the time or place in which to insist on the very grave dangers that accompany the use of ordinary flannelette, but a caution must be addressed in passing to those who provide clothing for others. In providing clothes it is necessary to remember the two reasons for their existence: (1) to cover the body, and (2) as far as possible to protect a large area of its surface against undue damp and cold. Adolescents, as a rule, begin early to take a great interest in their clothes. From the time that the appreciation of the opposite sex commences, the child who has hitherto been indifferent or even slovenly in the matter of clothing takes a very living interest in it; indeed the adornment of person and the minute care devoted to details of the toilet by young people of both sexes remind one irresistibly of the preening of the feathers, the strutting and other antics of birds before their mates. Girls especially are apt to forget the primary object of clothing, and to think of it too much as a means of adornment. This leads to excesses and follies such as tight waists, high-heeled shoes, to the ungainly crinoline or to indecent scantiness of skirts. Direct interference in these matters is badly tolerated, but much may be accomplished both by example and by cultivating a refined and artistic taste in sumptuary matters.