PLATE 40. 



Bacillus subtilis (Ehrenberg). F. Colin. 



(Hay Bacillus.) 



I. Potato culture, seven days at 22°. 

 II. Gelatin plate, two days at 22°. X 60. Above and 

 to the left, a deep colony; below this, one lying directly at 

 the surface; to the right, a superficial colony. 



III. Gelatin plate, two days at 22°. Natural size. 



IV. Gelatin plate, two days at 22°. X 10. 



V. Microscopic preparation. X 1000. From an agar 

 culture three hours old at 37°, stained with fuchsin. 



VI. Microscopic preparation. Bacilli with flagella, 

 after Fischer. Very highly magnified. 



VII. Microscopic preparation. X 1000. From an agar 

 culture, ten days at 22°. Contains spores. Unstained. 



VIII. Microscopic preparation. X 700. From an agar 

 culture, ten days at 22°. Double stain with carbol-fuchsin 

 and methylene-blue. 



IX. Bacilli with numerous flagella. X 1000. Stained 

 according to Loffler. 



IX. 



