PLATE 60. 



Corynebacterium diphtheria? (Klebs, Loffler). L. and N. 



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, 

 11, vii b; and Plate 59, 11. 



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

 37°. X 1000. Stained with fuehsin. Corresponds to Plate 58, 1, 

 vii 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, m, vin a; Plate 59, 1, 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, ym c. 



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

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

 ule!. The polar staining is characteristic. Corresponds to figure 1. 

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

 at 100°, eighteen hours at 35°. X 1000. Staining of Nciss.r's 

 granules. These occur also in many varieties of pseudodipht heria, 

 I >ut 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. 



