37 
Table showing the number of bacteria and presence of colon bacilli in samples taken from 
the outlet of the filtered water reservoir — Continued. 
JUNE. 
Number of bacteria 
per cubic centime- 
ter. 
B. coU in— 
Fermentation in sugar 
broth (c). 
Date. 
(a) 
Filtra- 
tion 
plant. 
(&) 
Agri- 
cultu- 
ral De- 
part- 
ment. 
(c) 
Hygi- 
enic 
Labor- 
atory. 
0.1 c. c. 
1 c. c. 
10 c. c. 
0.1 c. c. 
1 c. c. 
10 c. c. 
1907. 
24 
5 
(?) 
2 
! 
3 
28 
4 
18 
4 
23 
9 
16 
5 
24 
7 
11 
6 
’ 10 
14 
32 
1 
7 
! 13 
30 
18 
1 
8 
22 
11 
(?) ' 
1 
9 
1 
10 
16 
i 20 
30 
1 
i 
11 
21 
13 
70 
1 
12 
16 
14 
39 
13 
24 
300 
35 
+ 
14 
34 
17 
25 
1 
15 
10 
1 
400 
27 
j 
16 
17 
i 30 
16 
35 
18 
21 
19 
38 
19 
1 
' 20 
15 
23 
i 
20 
9 
9 
(?) 
22 
21 
! 17 
21 
22 
i 8 
19 
22 
23 
I 
1 
24 
^ 19 
11 
26 
1 
i _ 
25 
10 
14 
26 
26 
21 
30 
37 
1 
27 
13 
10 
54 
+ 
134 
4 
(?) 
22 
18+ 
45+ 
29+ 
Average. 
