PLATE 59. 



Corynebacterium diphtherias. (Klebs, Loffler.) 



L. and N. 

 Corynebacterium pseudodiphtheriticum. (Hofmann- 



Wellenhof.) Lehm. and Neum. 



Corynebacterium xerosis. (Kuschbert, Neisser.) 



Lehm. and Neum. 



I. Coryneb. diphtherias. Plate cultures (Ascites- 

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

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

 II. Coryneb. diphtherias. Plate culture (glycerin- 

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

 37. The same culture as I, g, h. 



III. Coryneb. diphtherias. Plate culture (ascites- 

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

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



IV. Coryneb. pseudodiphtherit. Plate culture (gly- 

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

 at 37. The same culture as Plate 58, m. 



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, 

 vin b. 



VI. Coryneb. diphtherias. Plate culture (ascites- 

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

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



VII. Coryneb. diphtherias. 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, viu c. 



