PLATE 34. 



Bacillus anthracis. F. Cohn and R. Koch. 



(Splenic Fever.) 



I-V. Gelatin stab cultures, three days at 22°. Figures I 

 and ii are typical ; the others, atypical. 



VI. Agar streak culture, two days at 22°. 

 VII. Agar stab culture, five days at 22°. Stab canal. 

 VIII. Agar stab culture, five days at 22°. Surface growth, 

 which is atypical. 



IX. Agar stab culture, five days at 22°. Surface growth 

 typical ; often also is homogeneous whitish-gray. 



