42 
Table shoiring the number of bacteria ayid presence of colon bacilli in samples tahen from 
the ou tlet of the filtered icater reservoir — Continued. 
NOVEMBER. 
Date. 
Number of bacteria 
per cubic centime- 
ter. 
B. coli in — 
Fermentation in sugar 
broth (c). 
(a) Agri- 
Filtra- cultu- 
tion ral De- j 
plant, part- ^aW- 
ment. ^^ory. 
0.1 c. c. 1 c. c. 10 c. c. 
! 
j 
0.1 c. c. 1 c. c. ! 
10 c. c. 
1907. 
' 1 
Nov. 1 
18 27 130 
. . 6 7 21 
3 
..17 
4 
. . 12 7 21 
+(f) 
- 
+ 
10 6 15 
_ ! 
6 .. 
12 6 17 
.... 5 .59 
+ 
s 
17 10 30 
9 
21 8 14 
10 
25 
11.. 
23 3 14 
12 
. . 22 8 19 
13 
17 4 33 ! 
14 .. . . 
10 8 30 1 
1.5 
17 6 100 
+ 
16 
28 68 
+ 
+ 
17 
20 
18 
17 11 47 
+ (0 
- 
+ 
19 
16 12 98 
_ 
_ 
20 
12 33 
21 
15 2.5 
•» 
29 44 
+ 
23 
21 36 
-4- frl 
+ 
24 
. . ,V) . . 
2.5 
48 . ■ 66 
+ 
26 
43 1.55 
27 
60 103 
- 1 - Cfl 
+ 
+ 
28.. . . 
70 
29 
70 185 
_ 
+ 
30. 
60 
216 
26+ 
8+ 63+ 
Average. 
