In the previous papers1 of this series, various phases of the metabolism of undernourished children have been discussed. In this paper, data concerning the caloric balance of ten normal and twenty-six undernourished children are given. In all, fifty-two sets of tests were made, some of the children appearing two, three or four times, usually since they remained in the hospital and were gaining in weight. Most of these children have also been used as subjects in our previous investigations.
Practically nothing can be found in the literature on the subject of the metabolism of the undernourished child of school age. Utheim2 and Fleming3 have published data on the metabolism of athreptic infants, Utheim drawing the conclusion that in severe cases the infant's capacity for the absorption of food material was markedly decreased. This improved rapidly, however, as the infant gained in weight. Fleming, on the other hand,