PLATE 60. 

 Corynebacterium diphtherias (Klebs, Loftier). L. and 



Corynebacterium pseudodiphtheriticum. (Hofmann- 

 Wellenhof.) Lehm. and Neum. 



Corynebacterium xerosis (Kuschbert, Neisser). Lehm. 

 and Neum. 



I. Coryneb. diphtheriae. 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. diphtheriae. 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. diphtheriae. Glycerin-agar, forty-eight hours at 

 37. X 1000. Stained with fuchsin. 



IV. Coryneb. diphtheriae. 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, vm 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, 

 vni 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. diphtheriae. 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 1000. Staining of ^eisser's 

 granules. These occur also in many varieties of pseudodiphtheria, 

 but not with such regularity at both poles. 



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

 X 1000. Stained with fuchsin. True branching. 



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

 schematic. 



XIII. 



