34 
Table showing the number of bacteria and presence of colon bacilli found in samples taken 
from the inlet of Dalecarlia Reservoir — Continued. 
OCTOBER. 
Date. 
Number of bacteria 
per cubic centime- 
ter. 
B. coli in— 
P'ermentation in sugar 
broth (c). 
(a) 
Filtra- 
tion 
plant. 
(6) 
Agn- 
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- 
Oct. 1 
600 
550 
6,000 
+ (0 
+ (a)(b)(c) 
+ (o) (6)(c) 
+ 
+ 
+ 
O 
4,400 
285 
3,200 
+ (c) 
+ (b)(c).... 
+ (6)(c) 
+ 
+ 
+ 
o 
900 
300 
+ (c) 
+ (a)(6)(c) 
+ (a) (6) (c) 
+ 
+ 
+ 
4 
850 
320 
550 
+ (a)(c).. 
+ (a)(c).... 
+ (a)(6)(c) 
+ 
+ 
+ - 
5 
2,000 
285 
510 
+ (c) 
+ (a)(6)(c) 
+ (a)(6)(c) 
+ 
+ 
+ 
1, 2.50 
65 
440 
+ (c) 
+ (a)(6)(c) 
+ (a) (6)(c) 
+ 
+ 
+ 
8 
11,000 
118 
606 
+ (a)(6)(c) 
+ (a)(6)(c) 
+ 
+ 
+ 
9 
2,000 
170 
970 
+ (a)(6)(c) 
+ (a)(6)(c) 
+ 
+ 
10 
800 
2, 500 
400 
+ (6)(c).... 
+ 
+ 
+ 
11 
2,000 
395 
390 
+ (a)(c).. 
+ (a)(6)(c) 
+ (a)(c).... 
+ 
+ 1 
! + 
12 
1,200 
203 
260 
+ (c) 
+ (a)(6)(c) 
+ (a) (6)(c) 
+ 
+ 
+ 
13 . . 
14 
1,200 
252 
340 
+ (c) 
+ (6)(c).... 
+ 
’ + 
In.. _ . 
900 
660 ' 
+ (a) (c) 
+ (a) (c) 
+ 
+ 
IG.. . 
290 
1 3, 550 
+ (a)(6).... 
+ (a)(6)(c) 
1 T 
17 
550 
150 
510 ' 
+ (a)((6)(c) 
1 
+ 
18 
260 ' 
204 
790 
+ (6)(c).... 
+ (6) (c) 
+ 
1 + 
19 
750 ; 
280 
730 
+ (c) 
+ (c) 
* + 
20 
21 
480 
180 
1,050 
+ (c) 
+ (6)(c).... 
+ 
+ 
22 
230 
108 
8.50 
+ 
+ 
23 
2.50 
190 
480 
1 
1 + , 
24 
300 
80 
1,400 

j + (6) 
+ (c) 
1 + 
2.5 . 
4.50 
50 
480 
+ (6)(c).... 
+ 
2G 
450 
74 
350 
i 
+ (a)(c).... 
! + 
+ 
07 
1 
28 
190 
202 
! 5.50 
! 
29 
380 
320 
1,325 
i + fcl 
'+fc') 
+ 
+ 
.30 
4.50 
100 
500 
1 ... +(h) 
+ 
31 
2, .300 
1,100 
2, 800 
l+(c) 
+ (a)(6)(c) 
+ 
+ 
1 
Average 
1,390 
i 
337+ 
1 
1,132+ 
1 
1 
1 
1 
i 
I 
