1 . 
2 
3 
4. 
5. 
G. 
8. 
9. 
10. 
11 . 
12 . 
13. 
14. 
15. 
IG. 
17. 
18. 
19. 
20 . 
21 . 
22 . 
23. 
24. 
25. 
2G. 
27. 
28. 
29. 
30. 
40 
number of bacteria and presence of colon bacilli in samples taken from 
the outlet of the filtered water reservoir — Continued. 
SEPTEMBER. 
Number of bacteria 
per cubic centime- 
ter. 
B. coli in — 
Fermentation in sugar 
broth (c). 
(a) 
Filtra- 
tion 
plant. 
65 
39 
36 
23 
51 
33 
• 34 
33 
30 
30 
25 
62 
42 
70 
10 
9 
6 
19 
18 
190 
24 
47 
19 
(&) 
Agri- 
cultu- 
ral De- 
part- 
ment. 
(c) 
Hygi- 
enic 
“Labor- 
atory. 
0.1 c. c. 
1 c. c. 
10 c. c. 
0.1 c. e. 
1 c. c. 
10 c. c. 
22 
7 
52 
65 
+ (c) 
+ 
54 
+ 
5 
90 
- 
(?) 
6 
80 
-4- 
6 
30 
5 
30 
+ 
13 
58 
+ (a) 
1 
23 
6 
100 
26 
31 
12 
23 
+ 
11 
41 
22 
140 
70 
j + 
2 
48 
1 
1 
190 
8 
180 
+ (c) .... 
+ 
500 
190 
+ (c).... 
+ 
+ 
10,000 
220 
+ ih) (c)..' 
+ ('b (C- 
+ 
+ 
590+ 
1 
1 
: 80+ 
37 + 
