[Vor. 7 
260 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Bacteria per cc. 
gs.) 
(Logs. 
10.0 
9.0 
£799». 
A ie 
Cue 
8.0 LA 
IMMO 
NC y 
WA 
UN A 
6.0 NA A 
NN 
A * 
V 
i Ix 
5.0 |! 1 
PH 
4.0 
5.0 AS NO ed P: 
fi a 
6 0 il Ji ^ £ 
. red ? 7 
Ty "ar 
E oí r 
7.0 (tT? i j 
dE i 
r 
8.0 
9.0 
Hours 0 48 96 144 192 240 
wth and hydrogen ion Ao of Bacillus coli at 30? C., 1 per 
Fi 
cent Line bouillon, subcultured at interva 
sant culture. 
—. .—. .— Subculture 4. 
——. . .—+. » Subculture 5. 
