76 
THE FILTERED RIVER WATER FROM TAPS— Continued. 
Table sJioiving fermentation in lactose broth of samples taken from constantly flowing ' 
hydrant in Lafayette Square — Continued. 
SEPTEMBER, 1908. 
1 
2 
3 
4 
5 
6 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
28 
29 
30 
Day of month. 
^ F ermentation in lactose broth. 
0.1 c. c. 
1 c. c. 
10 c. c. 
i 
_ 
_ 
1 
- 
+ 
- 
- 
i:::;:::;:: 
1 
- 
- 
i 
! 
- 
- 1 
- 
+ 
+ 
+ 
- 
+ 
- 
+ 
