60 STORRS AGRICULTURAL EXPERIMENT STATION. 
Milk kept at 20°.—As in other cases, there was a rapid 
development of the Group I. after the first 12 hours. This 
type increased to over 1,000,000,000 in the 45 hours. The 
Group III. also developed during the whole experiment, and 



ww PLATH «A, 
7 
CL 
t+ reese 4 © ee ee ms 
GN at oP at A a ga AS PY a es 
a 
09 Ste Dene bre. 
iy = ee + eee 
OAD 
Q=° 
- y 
ay 8 ao 
) SEES 
3] \ 22B 
\ a 
SO) ey Pe 
eC 
~ 2 
S e 
oc 
Ors 
Ahl wel 
—- 5 
Aél 
Chet Shee 
IY. 
was rather abundant at the end, although few in numbers 
compared with GroupI. Group IV. increased in total numbers 
until the end, but decreased constantly in percentage. The other 
groups were detected in the last test, although few in numbers. 
