204 ACUTE PNEUMONIA. 



similar material make successive strokes on agar, blood 

 agar or blood serum. The most certain method, however, 

 is to inject some of the material containing the suspected 

 cocci into a rabbit. If the pneumococcus be present the 

 animal will die, usually within forty - eight hours, with 

 numerous capsulated pneumococci in its heart blood. 

 With the latter inoculate tubes of the above media and 

 observe the growth. (^) Friedlcinder 1 s pneumobatillus can 

 be readily isolated either by ordinary gelatine plates or by 

 successive strokes on agar media. 



