PLATE 42. 



Bacillus vulgatus. Migula. (B. mesentericus vufgatus 

 Fliigge. Potato Bacillus.) 



I. Gelatin stab culture, ten days at 22. 

 II. Agar streak culture, ten days at 22. 



III. Agar stab culture, six days at 22. Surface growth. 



IV. Agar plate, six days at 22. Natural size. 



V. Agar plate, six days at 22. X 60. Deep colonies. 

 VI. Agar plate, six days at 22. X 60. Superficial 

 colony. 



VII. Gelatin plate, eight days at 22. Natural size. 

 VIII. Gelatin plate, eight days at 22. X 60. Part of a 

 superficial colony. 



IX. Gelatin plate, eight days at 22. X 150. Part of a 

 superficial colony. 



X. Potato culture, five days at 22. Natural size. 

 XI. Microscopic preparation. Pure culture from agar, 

 one day old. X 800. Stained with fuchsin. 



XII. Bacilli with numerous flagella. X 1000. Stained 

 according to Loftier. 



