54 
RAW WATER— Continued. 
AUGUST. 
Day of month. 
Bacteria 
B. coli in— 
Fermentation in lactose broth. 
per c. c. 
0.1 c. c. 
1 c. c. 
10 c. c. 
0.1 c. c. 
1 c. c. 
10 c. c. 
1. 
26,000 
7,250 
+ 
1 
1 
+ 
+ 
2 
+ 
+ 
+ 
3 
4 
6,650 
2,500 
+ 
+ 
+ 
5 
+ 
4- 
+ 
6 
7 
1,900 
+ 
+ 
+ 
8 
9 
10. . . 
3,600 
5,650 
650 
+ 
+ 
+ 
11. 
+ 
+ 
+ 
+ 
12 
+ 
+ 
+ 
+ 
13 
800 
+ 
+ 
+ 
14 
375 
+ 
+ 
+ 
15. . . 
380 
+ 
+ 
+ 
16 
17 
490 
+ 
+ 
18 
1,300 
+ 
+ 
+ 
+ 
19 
10,200 
+ 
+ 
+ 
+ 
20 
4,600 
5,250 
1,150 
+ 
+ 
+ 
21. 
+ 
+ 
+ 
+ 
22 
+ 
+ 
+ 
+ 
23 
24 
550 
+ 
+ 
+ 
25 
850 
+ 
+ 
+ 
+ 
26... . 
4,450 
+ 
+ 
+ 
+ 
27. . ... 
. 31,000 
5,750 
+ 
+ 
4- • 
+ 
28 
+ 
+ 
+ 
+ 
29 
30 
1 
31 
5,500 
+ 
+ 
+ 
+ 
Average . . . 
5,515 
