The physical findings in lobar pneumonia are as familiar to clinicians as are the roentgenographic appearances of the lesions to the roentgenologist, but there are few recorded studies relating in any detail these two aspects of the disease. An investigation of this nature involves consistent observation on the part of the clinician and close cooperation with the roentgenologic department in order to obtain satisfactory data. The results of such a systematic study of forty cases of pneumococcus lobar pneumonia are reported in this paper.
This group of cases is obviously too small to justify any statistical treatment of the data. Furthermore, serum therapy was used in most of the type I and type II cases. However, except in those cases in which specific therapy was administered early in the disease, the clinical course was probably little altered in regard to physical signs and roentgenographic findings.
The classification of types of