466 BACILLUS OF INFLUENZA. 



observed a septicsemic infection as a result of his inoculation ex- 

 periments. 



Pfeiffer has found in three cases of bronchopneumonia a pseudo- 

 influenza bacillus which closely resembles the bacillus previously de- 

 scribed by him as peculiar to that disease. This pseudo-influenza 

 bacillus resembles the genuine one in its growth in culture media, 

 but is larger and shows a decided inclination to grow out into long 

 threads. By these morphological characters, which are said to be 

 constant, it may, according to Pteiffer, be readily distinguished. 



