72 



TECHNICAL BULLETIN 5. 



Fig. 2. — Curves showing change of reaction in carbohydrate media by cultures of Bac- 

 terium sanguinarium. Percentage of acid produced at end of five-day period. Titra- 

 tion of 5 c.c. samples in the cold, using _ NaOHand— HCl. 



20 20 



