PLATE 30. 

 Bacterium Zopfii. Kurth. 



I. Gelatin plate, eight days at 22°. X 90. Periph- 

 eral portion of a colony. 



II. Microscopic preparation. X 1000. Pure culture, 

 from agar plate, stained with fuchsin. 



III. Agar plate, four days at 22°. Deep colony. 



IV. Agar plate, twenty-four hours at 37°. Natural 

 size. 



V. Agar plate, twelve hours at 37°. Deep and super- 

 ficial colony. 



VI. Agar plate, twenty-four hours at 37°. X 60. Su- 

 perficial colony, surrounded by innumerable bacteria 

 swarming outward. 



VII. Gelatin plate, eight days at 22°. Sausage-shaped 

 forms of the deep colony. 



IX. Bacteria with riumerous flagella. X 1000. Stained 

 according to LofHer. 



IX. 



