When a baby is getting on well with his food, he should show the following characteristics: He should have a good appetite; should have no vomiting or gas; he should cry but little; and he should sleep quietly and restfully. His bowels should move once or twice in twenty-four hours. His stool should be a pasty homogeneous mass. He should possess a clear skin and good color. He should show some gain each week—from four to eight ounces—and he should also show mental development.

As long as a baby appears happy and gains from four to eight ounces a week and seems comfortable and well satisfied, the feeding mixture should not be changed or increased.

MAKE CHANGES GRADUALLY

In our experience with the artificial feeding of infants, we have come to look upon the practice of gradually changing the food formula as the most important element in successful baby feeding.

We recall one mother in the suburbs who came to us with her baby who had been feeding on a certain proprietary food. She declared that it "just couldn't take cow's milk." She admitted "it was not doing well," and so she would like to have help. The baby was old enough, had it been normal, to have been taking whole milk for some time. We recall our having the mother prepare the proprietary food just as she had been used to preparing it, and each day we had her throw away one-half ounce and put in one-half ounce of whole milk, this mixture she fed the baby for two days.

The next time, we had her take out one ounce of the mixture and put in one ounce of whole milk, which we fed the baby for three successive days; and then one and one-half ounces were substituted which was fed to the baby for four days; and thus we carefully, slowly, and gradually withdrew the proprietary food and substituted fresh, certified cow's milk. It took us a month to complete the change, but we are glad to add that it was done without in the least disturbing the child.

Now, had the change been made abruptly—in a day or two, or three days—the baby would probably have been completely upset, while both the mother and the doctor would have been greatly discouraged. Many mothers and even some physicians have jumped from one baby food to another baby food; they have tried this and they have tried that, until the poor child, having been the victim of a number of such dietetic experiments, finally succumbed.

We cannot urge too strongly the fact that, as a rule, whenever a change is made from one food to another, it should be done gradually, unless it be the change of a single element such as that of a very high per cent of cream found in top milk mixtures, when it seems to be a troublesome element in the milk. No bad effects will follow the quick change to skimmed milk with added sugar, starches, etc; but in changing from a proprietary food to a milk mixture, the change should always be made gradually, the quantity of the new food being increased gradually. Milk should be increased by quarter (1/4) ounce additions, and it should not be increased more than one ounce in one week; while the mixture should not be increased as long as the baby is gaining satisfactorily. A wise mother and an experienced physician can usually see at a glance when a child is doing well—by the color and consistency of the stools, the child's appetite, his sleep, and his general disposition.

COMMON MISTAKES IN FORMULAS

First and foremost, we believe a great mistake is often made in using too heavy cream mixtures; babies as a rule do not stand the use of too high a percentage of cream. Formulas that call for whole milk should contain four per cent fat or cream; and while babies often gain rapidly on the higher percentage of cream found in a rich Jersey milk, nevertheless, sooner or later serious disturbances of digestion usually occur. Herd milk is, therefore, better for the babies because in the "whole milk" of the herd of Holsteins we have only about four per cent fat.