1920] 
CHAMBERS— BACTERIAL INHIBITION BY METABOLIC PRODUCTS 
Bacteria per CC. 
(Logs.) 
10.0 
a a > 
| X 
Ear SM 
8. rt 
> 
x 
Je 
ort 
P 
Pg 
9. 
Hours o 48 96 144 192 240 
ig. 3. Growth and hydrogen ion concentration of Bacillus coli at 30? C., 1 per 
cent dextrose bouillon, subcultures with added nutrients. 
parent culture. 
-------- Subculture 1. 
— — — — Subculture 2. 
Elo —.—. Subculture 3. 
—-.—..— Subculture 4. 
