PLATE 60. 

 Corynebacterium diphtherise (Klebs, Loftier). L. and N. 



Corynebacterium pseudodiphtheriticum. (Hofmann- 

 Wellenhof.) Lehm. and Neum. 



Corynebacterium xerosis (Kuschbert, Neisser). Lehm. 

 and Neum. 



I. Coryneb. diphtherise. Glycerin-agar, forty-eight hours 

 at 37. X 1000. Stained with fuchsin. Corresponds to Plate 58, 

 u, vn b; and Plate 59, n. 



II. Coryneb. diphtherise. Glycerin-agar, forty-eight hours at 

 37. X 1000. Stained with fuchsin. Corresponds to Plate 58, i, 

 vn a; and Plate 59, vi. 



III. Coryneb. diphtherise. Glycerin-agar, forty-eight hours at 

 37. X 1000. Stained with fuchsin. 



IV. Coryneb. diphtherise. Glycerin-agar, forty-eight hours at 

 37. X 1000. Stained with fuchsin. 



V. Coryneb. pseudodiphtherit. Glycerin-agar, forty-eight 

 hours at 37. X 1000. Stained with fuchsin. 



VI. Coryneb. pseudodiphtherit. Glycerin-agar, forty-eight 

 hours at 37. X 1000. Stained with fuchsin. 'Corresponds to 

 Plate 58, in, vin a; Plate 59, i, iv. 



VII. Coryneb. xerosis. Glycerin-agar, forty-eight hours at 

 37. X 1000. Stained with fuchsin. Corresponds to Plate 58, iv, 

 vin b ; and Plate 59, v. 



VIII. Coryneb. xerosis. Glycerin-agar, forty-eight hours at 

 37. X 1000. Stained with fuchsin. 



IX. Coryneb. xerosis. Glycerin-agar, forty-eight hours at 37. 

 X 1000. Stained with fuchsin. Corresponds to Plate 58, vm c. 



X. Coryneb. diphtherise. Bovine blood-serum, solidified at 

 100, eighteen hours at 35. X 1000. Staining of Neisser's gran- 

 ules. The polar staining is characteristic. Corresponds to figure i. 

 XI. Coryneb. pseudodiphtherit. Bovine blood-serum, solidified 

 at 100, eighteen hours at 35. X'lOOO. Staining of Neisser's 

 granules. These occur also in many varieties of pseudodiphtheria, 

 but not with such regularity at both poles. 



XII. Coryneb. diphtherise. Glycerin-agar, four days at 37. 

 X 1000. Stained with fuchsin. True branching. 



XIII. Coryneb. diphtheriae. Single organisms, highly magnified, 

 schematic. 



XIII. 



