34 
North Carolina Agricultural Experiment Station 
Table 8—Influence of Varying Concentrations of Lactose in Plain Bouil¬ 
lon Upon the Final pH Concentrations. Initial pH 7.4 
Organisms 
Concen¬ 
tration 
of 
Bacterium tabacum- 
Age of Cultures in Days and pH Concentrations 
Bacterium angulatum - 
Bacillus carotovorus-.- 
Bacterium glycineum.. 
Bacterium sojae. 
Bacterium campestre. 
Days 
ctose 
1 
2 
3 
5 
7 
9 
11 
13 
r Cent 
pH 
pH 
pH 
pH 
pH 
pH 
pH 
pH 
0.1 
7.4 
7.4 
7.6 
7.8 
8.0 
8.2 
8.4 
8.4 
0.3 
7.4 
7.4 
7.6 
7.8 
8.2 
8.4 
8.4 
8.4 
0.6 
7.4 
7.4 
7.6 
7.8 
8.2 
8.4 
8.4 
8.4 
1.0 
7.4 
7.5 
7.6 
7.8 
8.0 
8.4 
8.4 
8.4 
2.0 
7.4 
7.6 
7.6 
7.8 
8.4 
8.4 
8.4 
8.4 
0.1 
7.4 
7.4 
7.6 
7.8 
8.4 
8.4 
8.4 
8.4 
0.3 
7.4 
7.4 
7.6 
7.8 
8.4 
8.4 
8.4 
8.4 
0.6 
7.4 
7.6 
7.8 
8.4 
8.4 
8.4 
8.4 
8.4 
1.0 
7.4 
7.6 
7.8 
8.0 
8.2 
8.4 
8.4 
8.4 
2.0 
7.4 
7.6 
7.7 
7.8 
8.1 
8.4 
8.4 
8.4 
0.1 
5.8 
5.6 
5.6 
6.4 
7.4 
7.8 
8.2 
8.4 
0.3 
5.6 
5.4 
5.3 
5.2 
5.2 
5.2 
5.2 
5.2 
0.6 
5.4 
5.3 
5.2 
5.2 
5.2 
5.2 
5.2 
5.2 
1.0 
5.4 
5.3 
5.2 
5.1 
5.0 
5.0 
5.0 
5.0 
2.0 
5.3 
5.2 
5.2 
5.1 
5.0 
5.0 
5.0 
5.0’ 
0.1 
7.4 
7.4 
7.5 
7.6 
7.8 
8.2 
8.4 
8.4 
0.3 
7.4 
7.4 
7.5 
7.6 
7.8 
8.2 
8.4 
8.4 
0.6 
7.4 
7.4 
7.6 
7.6 
7.8 
8.0 
8.4 
8.4 
1.0 
7.4 
7.4 
7.2 
7.0 
7.4 
7.8 
8.0 
8.2 
2.0 
7.4 
7.2 
7.0 
6.8 
7.2 
7.6 
8.0 
8.2 
• 
0.1 
7.4 
7.4 
7.6 
7.8 
8.0 
8.2 
8.4 
8.4 
0*3 
7.4 
7.4 
7.6 
7.8 
8.0 
8.2 
8.4 
8.4 
0.6 
7.4 
7.4 
7.6 
7.8 
8.0 
8.2 
8.4 
8.4 
1.0 
7.4 
7.4 
7.6 
7.8 
8.0 
8.2 
8.4 
8.4 
2.0 
7.4 
7.4 
7.6 
8.0 
8.2 
8.3 
8.4 
8.4 
0.1 
7.4 
7.4 
7.4 
7.4 
7.5 
7.6 
7.8 
8.0 
0.3 
7.4 
7.4 
7.4 
7.4 
7.5 
7.6 
7.8 
8.0 
0.6 
7.4 
7.4 
7.4 
7.4 
7.8 
8.0 
8.2 
8.2 
1.0 
7.4 
7.4 
7.4 
7.4 
7.8 
8.0 
8.4 
8.4 
2.0 
7.4 
7.4 
7.4 
7.4 
7.8 
8.0 
8.4 
8.4 
