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. 
I 
70 
FILTERED WATER— Continued. 
SEPTEMBER, 1908. 
B . coli in— F ennentation in lactose broth. 
Day of month. 
Bacteria 
per c. c. 
0.1 c. c. 
1 c. c. ! 10 c. c. I 0.1 c. c. 
1 c. c. ! 10 c. c. 
35 
19 
37 
36 
- i 
Average. 
36 
I 
