PLATE V. 



PATHOGENIC BACTERIA. 



FIG. 1. Bacillus anthracis from cellular tissue of inoculated mouse. 

 Stained with gentian violet. X 1,000. Photomicrograph by Frankel 

 and Pfeiffer. 



FIG. 2. Bacillus anthracis in section of liver of inoculated rabbit. 

 Stained with Bismarck brown, x 250. Photomicrograph by Sternberg. 



FIG. 3. Micrococcus gonorrhoeas in gonorrhceal pus. Stained with 

 gentian violet, x 1,000. Photomicrograph by gaslight. (Sternberg.) 



FIG. 4. Anthrax spores from a bouillon culture. Double-stained 

 preparation with carbol-f uchsin and rnethylene blue, x 1,000. Photo- 

 micrograph by Frankel and Pfeiffer. 



FIG. 5. Spirillum cholerse Asiaticee from a culture upon starched 

 linen at end of twenty-four hours. Stained with f uchsin. x 1,000. 

 Photomicrograph by Frankel and Pfeiffer. 



FIG. 6. Bacillus diphtherise from colony upon an agar plate, twenty- 

 four hours old. Stained with Loffler's solution of methylene blue, x 

 1,000. Photomicrograph by Frankel and Pfeiffer. 



