DESCEIPTION OF PLATE VIII. 

 BacillTis diphtheriaB and Bacillus typhosus. 



Fig. 1. — Co%er-glass preparation from a pure-cultivation of Bacillus diph- 



therise on blood serum ; obtained from the throat in a typical case of 



diphtheria. Stained with gentian- violet, x 1200. 

 Fig. 2. — Cover-glass preparation from a pure-cultivation of Bacillus typhosus 



on nutrient-agar ; from the spleen in a, case of typhoid fever Stained 



with gentian-violet, x 1200. 



