PATHOGENICITY FOR MAN 



219 



B. NUMBER AND PERCENTAGE DISTRIBUTION OF 1,000 CASES OF 



PNEUMOCOCCUS LOBAR PNEUMONIA, DUE TO TYPES I TO 



XXXII INCLUSIVE, IN ADULTS (bULLOWa's SERIES) 



C. NUMBER AND PERCENTAGE DISTRIBUTION BY AGE AND SEX OF 



TYPES I, II, III, AND GROUP IV CASES OF LOBAR 



PNEUMONIA IN ADULTS 



PNEUMOCOCCAL TYPES IN BRONCHOPNEUMONIA 



Quoting from Heffron : "The frequency with which the various 

 types of pneumococci are found in bronchopneumonia approxi- 

 mately parallels the frequency with which they are carried in the 

 mouths of normal persons, which suggests that chance occurrence 

 may play a large part in these infections." So short a time has 



