This paper reports the results of studies on the basal metabolism of afebrile children with the adult, or reinfection, type of pulmonary tuberculosis in whom pneumothorax therapy was instituted. The work is part of an extensive study of the basal metabolism of tuberculous children which is being made at Sea View Hospital.
One hundred and fourteen basal metabolism tests were made on 66 children. Their ages ranged from 7 years and 2 months to 16 years and 6 months. There were 49 girls and 17 boys. Since it was found that neither sex nor race significantly affected the results, a differentiation on these lines was not attempted.
Thirty of these children were studied before pneumothorax had been instituted and again at varying periods after the procedure. Thirty-six children were studied only after pneumothorax had been induced. In the entire series pneumothorax had been maintained for periods ranging from one month