1 . 
2. 
3. 
4. 
5. 
6 . 
S. 
9. 
10 . 
11 . 
12. 
13. 
14. 
15. 
16. 
17. 
IS. 
19. 
20 . 
21 . 
22 . 
23. 
24. 
25. 
26 
27 
2S 
29, 
30 
31 
65 
FILTERED WATER— Continued. 
APRIL, 1908. 
B. coli in — 
Dav of month. 
Bacteria 
per c. c. 
0.1c. c. Ic. c. 10 c. c. 
Fermentation in lactose broth. 
0.1 c. c. 1 c. c. 10 c. c. 
100 !. 
65 i. 
115 
45 
30 
80 
40 I 
SO ' 
35 ' 
40 
110 
55 
25 
45 
2S 
Average . 
58 
179— BuU. 52—09 5 
