PLATE 35- 



Bacillus anthracis. F. Cohn and R. Koch. 



(Splenic Fever.) 



I. Agar plate, four days at 22°. X 60. To the left, a 

 superficial colony ; to the right, a colony directly below the 

 surface; below, a deep colony. 



II. Agar plate, four days at 22°. Natural size. 



III. Agar plate, thirty-six hours at 37°. X 150. Sur- 

 face growth. Peripheral part of a streak culture. 



IV. Agar plate, thirty-six hours at 37°. X 150. Deep 

 colony. 



V. Gelatin plate, three days at 22°. Natural size. 

 VI. Gelatin plate, three days at 22°. X 60. Super- 

 ficial colom^ at the time of sinking in. 



VII. Potato culture, six days at 22°. Natural size. 



