PLATE 24. 



Bacterium pyocyaneum (Fliigge). Lehm. and Neum. 

 (Green Pus.) 



I. Gelatin stab culture, three days at 22. 

 II. Agar streak culture, two days at 37. 



III. Gelatin plate, two days at 22. X 60. Colonies 

 located deeply and just below the surface, in young and 

 older stages. 



IV. Gelatin plate, five days at 22. X 60. Part of a 

 superficial colony. 



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

 VI. Agar plate, two days at 37. Natural size. 

 VII. Agar plate, two days at 37. X 60. Above, 

 'superficial; below, deep colonies. 



VIII. Potato culture, three days at 37. Natural size. 



IX. Microscopic preparation. Pure culture from agar 

 plate. X 800. 



, X. Bacteria with one, more rarely two polar flagella. 

 X 1000. Stained according to Loffler. 



X. 



