BACILLUS PNEUMONIAE 

 (FRIEDLANDER) 



In the sputum and in the secretions from the lungs 

 of pneumonic patients a second capsulated organism 

 is frequently found. It was originally described 

 and cultivated by Friedlander and thought to be the 

 cause of croupous pneumonia. Like the preceding 

 organism it is found in the normal mouth and 

 associated with the formation of pus. It is larger, 

 more bacillary, much more easily cultivated and less 

 pathogenic than the Diplococcus Pneumoniae, and is 

 further distinguished by not staining by Gram's 

 method. It gives rise when injected into the mouse 

 to a fatal septicaemia, and Fig. 65 shows the bacillus 

 as it occurs in the peritoneal exudation of such an 

 infected animal ; it should be compared with Fig. 62. 

 The organism is seen to vary from an almost coccoid 

 form (at the lower part of the figure) to a fairly long, 

 plump, round-ended bacillus. One bacillus has 

 become detached in the preparation and lies a little 



