PLATE V. 



PATHOGENIC BACTERIA. 



Fia. 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. 



Fia. 3. Micrococcus gonorrhoeas in gonorrhoeal pus. Stained with gen- 

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



FlG. 4. Anthrax spores from a bouillon culture. Double-stained prepara- 

 tion with carbol-fuchsin and methylene blue, x 1,000. Photomicrograph 

 by Frankel and Pfeiffer. 



FIG. 5. Spirillum choleras Asiaticae from a culture upon starched linen 

 at end of twenty-four hours Stained with fuchsin. x 1,000. Photomi- 

 crograph by Frankel and Pfeiffer. 



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

 four hours old. Stained with Ltf filer's solution of methylene blue, x 1,000. 

 Photomicrograph by Friinkel and Pfeiffer. 



Mi II-. - ,:,. 



