DESCRIPTION OF PLATE VIII. 

 Bacillus diphtherise and Bacillus typhosus. 



KiGr. 1. — Cover-glass preparation from a pure-oultivation of Bacillus diph- 



therife 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. 



