Explanation of Plate 55. 



VIBRIO DANUBICUS Heider; VIBRIO BEROLINENSIS 

 Rubner; VIBRIOA QUATILIS Giinther. 



I. Vibrio daimbicus. Gelatin stick culture, three 

 days at 22. 



III. Vibrio danubicus. Gelatin plate, three days at 



22. Bight side, superficial; left side, deep 

 colony. 



IV. Vibrio danubicus. Microscopical preparation. 



Pure agar culture, twenty-four hours. Stained 

 with fuchsin. x 800. 



V. Vibrio berolinensis. Gelatin plate, three days at 

 22. X60. Right side, superficial ; leftside, 

 deep colony. 



VI. Vibrio berolinensis. Microscopical preparation. 

 Pure agar culture, twenty -four hours. Fuch- 

 sin stain. x 800. 

 II. Vibrio aquatilis. Gelatin stick culture, three 



days at 22. 



VII. Vibrio aquatilis. Gelatin plate, three days at 

 22. x60. Deep-seated secondary colonies, 

 sta'rting from one point. 



VIII. Vibrio aquatilis. Microscopical preparation. 

 Pure agar culture, twenty-four hours. Fuch- 

 sin stain. x 800. 



IX. Vibrio aquatilis. Gelatin plate, three days at 

 22. x60. Eight side, superficial; leftside, 

 deep colonies, 



55 



