PLATE 59. 



Corynebacterium diphtheriae, (Klebs, Loffler.) 

 L. and N. 



Corynebacterium pseudodiphtheriticum. (Hofmann- 



Wellenhof.) Lehni. and Neuni. 



Corynebacterium xerosis. (Kuschbert, Neisser.) 



Lehm. and JSTeum. 



I. Coryneb. diphtheriae. Plate cultures (Ascites- 

 fluid-agar and glycerin-agar). X 60. Superficial colo- 

 nies, twenty-four hours at 37°. Cultures of different origin. 

 II. Coryneb. diphtheriae. Plate culture (glycerin- 

 agar). X 60. Superficial colonies, forty-eight hours at 

 37°. The same culture as I, g, h. 



III. Coryneb. diphtheriae. Plate culture (ascites- 

 fluid-agar). X 60. Superficial colony, five days at 37°. 

 The same culture as I, c, e, and Plate 58, 11. 



IV. Coryneb. pseudodiphtherit. Plate culture (gly- 

 cerin-agar). X 60. Superficial colonies, forty-eight hours 

 at 37°. The same culture as Plate 58, iii. 



V. Coryneb. xerosis. Plate culture (glycerin-agar). 

 X 60. Superficial colony, forty-eight hours, at 37°. Dry, 

 dull, and very opaque. The same culture as Plate 58, iv, 

 VIII b. 



YL Coryneb. diphtheriae. Plate culture (ascites- 

 fluid-agar). X 60. Superficial colonies, forty-eight hours 

 at 37°. The same culture as I, /, I, and Plate 58, i, vii a. 



Vn. Coryneb. diphtheriae. Plate culture. The same 

 as VI, but ten days old. 



VIII. Coryneb. xerosis. Plate culture (glycerin-agar). 

 X 60. Superficial colonies, forty-eight hours at 37°. The 

 same culture as Plate 58, viii c. 



