77 
THE FILTERED RIVER WATER FROM TAPS— Continued. 
Table shoicing fermentation in lactose broth of samples tahen from constantly floicing 
hydrant in Lafayette Square — Continued. 
OCTOBER, 1908. 
1 
2 
3 
4 
5 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
Day of month. 
Fermentation in lactose broth. 
0.1 c. c. 
1 c. c. 
10 c. c. 
_ 
+ 
! 
i 
• 
1 
- 
- 
i 
I 
i 
1 
i 
1 
1 
1 
1 
