The chemical examination of the blood has yielded such valuable information in the diagnosis, prognosis and treatment of constitutional diseases in the adult that it has seemed worth while to present the data on infants and children which we have been collecting during the past five years. Although various problems of interest in pediatrics have been attacked with the aid of chemical methods of blood analysis, the information available is somewhat fragmentary. Nevertheless, a number of fundamental facts have been obtained. In general, the findings have been quite similar to those found in the adult, although it would appear that there is a tendency toward slightly lower figures.
In the case of blood sugar, Bass1 has shown that the values are essentially the same as those found in the adult, and Schultz and Pettibone2 have made somewhat similar observations regarding the nonprotein, urea and amino acid nitrogen in