RT Journal T1 PUlmonary tuberculosis in adults and children JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1939 FD December 23 VO 113 IS 26 SP 2345 OP 2346 DO 10.1001/jama.1939.02800510066025 UL http://dx.doi.org/10.1001/jama.1939.02800510066025 AB As pointed out in both prefaces of this book, the work is a "fusion" of two monographs, each of which was prepared for a current system of medicine. Naturally, there are imperfections in such an artificial union. Repetitious statements, slight incongruities and lack of liaison are therefore more or less unavoidable, irrespective of the recognized ability and standing of both authors. Perhaps the most important incongruity is that the "cart is before the horse" when the "adult part" is placed ahead of that devoted to "tuberculosis of childhood."Taking up Dr. Wallgren's part first (the logical order) there is little to say in a way of criticism and much to praise in the clinical field. It represents largely an essence of his own numerous studies. With regard to morbidity he tends to emphasize his own observations—an incidence of about 80 per cent infection by 20 years of age—but does not