Explanation of Plate 37. 



BACILLUS SUBTILIS. F. Cohn. 



(Hay bacillus.) 



I. Potato culture, seven days at 22. 

 II. Gelatin plate, two days at 22. x 60. Above, on 



the right side, a deep-seated colony. Below 



it, a colony lies directly at the surface. On 



the left a superficial colony. 



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

 IV. Gelatin plate, two days at 22. xlO. 

 V. Microscopical preparation ( X 1> 000) from an agar 



colony three hours old at 37. Stained with 



fuchsin. 

 VI. Microscopical preparation. Bacilli with flagella. 



(After Fischer.) Very highly magnified. 

 VII. Microscopical preparation (x 1,000) from an agar 



colony ten days old at 22. Contains spores. 



Unstained. 

 VIII. Microscopical preparation (xTOO) from an agar 



colony ten days old at 22. Double stain with 



carbolized fuchsin and methyl blue. 

 IX. Bacilli with numerous flagella. x 1,000. Loff- 



ler's stain. 



