Explanation of Plate 30. 



BACTERIUM ZOPFII. Kurth. 



I. Gelatin stick culture, six days at 22. 

 II. Gelatin streak culture, thirty -six hours at 37. 

 In reality of a gray transparent color. 



III. Agar stick culture, six days at 22. Puncture. 



IV. Agar stick culture, six days at 22. Surface. 

 V. Gelatin plate, seven days at 22. Natural size. 



VI. Gelatin plate, thirty-six hours at 22. Natural 



size. 



VII. Gelatin plate, twenty-four hours at 22: x90. 

 Thread-like part of the colony. Deeply situ- 

 ated. 



VIII. Gelatin plate, twenty-four hours at 22. x60. 

 Superficial colony! Vide PI. 32, VIII.; PL 

 33, VII, 



30 



