1 
2 
3 
4. 
5. 
6 , 
7. 
8 . 
9. 
10 , 
11 . 
12 , 
13. 
14. 
15. 
16. 
17. 
18. 
19. 
20 . 
21 . 
22 . 
23. 
24, 
25. 
26. 
27, 
28, 
29 
30 
31 
71 
FILTERED WATER— Continued. 
OCTOBER, 1908. 
Day of month. 
Bacteria 
per c. c. 
B. coli in— 
0.1 c. c. 1 c. c. 10 c. c 
Fermentation in lactose broth. 
0.1 c. c. 
1 c. c. 
10 c. c. 
Average. 
21 
9 
13 
22 
Lost. 
32 
28 
31 
65 
95 
29 
9 
27 
19 
17 
23 
35 
21 
19 
49 
14 
26 
14 
36 
