81 
THE FILTERED RIVER WATER FROM TAPS— Continued. 
Table showing fermentation in lactose broth of samples taken from hydrant tap at Wash- 
ington Circle — Continued. 
OCTOBER, 1908. 
! 
Day of month. 
^Fermentation in lactose broth. 
0.1 c. c. 
1 c. c. 
10 c. c. 
. 
- 
+ 
+ 
6 . 
8 . 
9 
10 
11 . 
12 
13 
14. 
15 
16 
17. 
18. 
19. 
20 
21 . 
22 
23 
24. 
25. 
26. 
27. 
28. 
29. 
30. 
31 
179— Bull. 52—09 6 
