482 



Vincent's Angina 



spirals make their appearance, sometimes in enormous 

 numbers. As a rule, they stain uniformly, some show the 

 dark bodies seen in the bacilli and filaments. They form from 



Fig. 156. Bacillus fusiformis. Pure culture grown four days in ascites 

 broth. (Ruth Tunnicliff in " Journal of Infectious Diseases.") 



Fig. 157. Bacillus fusiformis. Smear from gum in normal mouth. 

 (Ruth Tunnicliff in "Journal of Infectious Diseases.") 



one to twenty turns, which are not uniform. The spirals 

 are flexible, the ends pointed. The spirals persist in the 

 cultures, at times for fifty-five days. 



