structive. By the rapid increase of the food to an energy quotient of 100 calories on the sixth day the initial loss in weight was checked, but an indigestion followed which was treated by a reduction in food, and for twenty days there was

Margaret.

Age, W'ght Gain E.Q. Age, W'ght Gain E.Q.

no gain in weight. On the twenty-seventh day there was a great improvement in stools and the food was increased to an energy quotient of 100 calories. But pushing the food beyond

St. Louis.

Age, W'ght Gain E.Q. Age, Wight Gain E.Q.

that again brought on greenish stools. On the forty-first day the infant had not yet regained its original weight, and the stools having improved a forced alimentation was tried, gavage being used at times. Mother's milk was given in increasing quantities so that its energy quotient on the fifty fourth day reached 195 calories. Probably this was overfeeding-yet the infant gradually became accustomed to this food and on the following twelve days (48th to 60th day) gained on an average of 19 grams daily. On the following ten days (not shown in the table) he gained 10 grams daily on an energy quotient of 130 calories. His history will be more specifically discussed

Annie (Chart II) illustrates the gradual increase of food, and how the loss in weight is checked when an energy quo

tient of 70 calories is reached. She gained nicely on an alimentation having an energy quotient of 95 to 100 calories. Chart 12 shows how a larger increase of food does not in

crease the gain in weight but slightly. An energy quotient of 150 calories was too large. She gained very rapidly (30 grams daily) on a food having an energy quotient of 120 to 130 calories (58th to 64th day). She was a large baby to begin with and her growth was uninterrupted.

'Charts 13, 14 and 15 (Leonore, Mag. and Donald) illustrate the growth on mixed feeding. These were graduates, and the curves show their food and weight during certain periods of their life. Again, we notice that an energy quotient of about 120 to 130 calories is most satisfactory. Higher quantities give rise to indigestion. When the energy quotient is the same, and digestion is perfect it is impossible to draw any distinction between modified cows' milk and human milk in these older babies.