PLATE 49. 

 Vibrio choleras. (Koch.) Buchner. (Comma Bacillus.) 



I. Gelatin plate, thirty-six hours at 22. X 60. 

 Deep and superficial colonies. 



II. Gelatin plate, forty-eight hours at 22. X 60. To 

 the left superficial, to the right deep colonies. 



III. Gelatin plate, three days at 22. X 60. Superfi- 

 cial colonies with zone of liquefaction. 



IV. Gelatin plate, three days at 22. X 60. Deep 

 colonies. 



V. Gelatin plate, four days at 22. X 60. Superficial 

 colony with zone of liquefaction. 



VI. Gelatin plate, four days at 22. X 60. Deep 

 colony. 



VII. Gelatin plate, five days at 22. X 60. Deep 

 colony from a culture of cholera from Hanover. 



VIII. Gelatin plate, five days at 22. X 60. Superfi- 

 cial colony. Complete liquefaction has already taken place. 

 IX. Gelatin plate, eight days at 22. X 60. Superfi- 

 cial colony with zone of liquefaction. 



