Particularly during the first year it is of the utmost importance to watch with an intelligent eye the growth and development of the child. Where the milk agrees with it it has a good color and gains regularly in weight; it cries but little, and is good natured, and thoroughly contented. Should it, on the other hand, lose weight, appear fretful and listless, and sleep badly, there is something wrong, and the mother should at once have her milk examined by a competent physician. In case the mother does not give sufficient nourishment there is no objection to partially feeding the infant on modified cow's milk--the method of the preparation of which will be considered later on. Where colic occurs it generally means that the infant is getting a diet too rich in albuminous foods, which should be corrected by advising the mother to take an abundance of out-door exercise, and to avoid all causes of worry so far as is possible. Vomiting freely is a very common occurrence in small children, and is usually the result of too much food being taken at a time. It also occurs, particularly some time after feeding, as a result of indigestion, which is frequently the consequence of the milk being too rich in fats. Wherever an infant shows signs of trouble it is well to advise the mother to use a diet less rich in meats, and to caution her against over-eating. Children should be weaned at the end of their first year. This had best be brought about gradually, by, in the beginning, feeding the child once daily, and then gradually increasing the frequency, at the same time proportionately leaving off the nursing. Where children are not thriving, it is often a good practice to wean earlier, in which case modified cow's milk, taken from a bottle, must be substituted. _Artificial Feeding._--While it is true that children often thrive for a time on the various baby-foods with which the market is so abundantly supplied, it is, nevertheless, the case that where fed in this way they are very apt to develop rickets or scurvy, and not uncommonly show evidences of bad nutrition in loss of weight and strength, becoming peevish and fretful, and sleeping badly. Much better than any of the artificial foods is properly modified cow's milk, which, with care, may be prepared in such a manner as to take the place of mother's milk in the vast majority of instances. In order, however, that this be successfully carried out, much care and attention is necessary.