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 gro'wiih. Peripheral part of a streak culture. 



rV. 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 colony at the time of sinldng in. 



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



