219
TABLE I.—Table showing the quantity of pollution in each sample.
Name of town supply.
Unfiltered or natural waters.
Filtered waters.
Water taken from pipes.
T o t a l p e r c c . o n a g a r a t 3 7° c .
Lactose fermen-
tern in
V i b r i o s i n 1 0 0 c c .
T r u e c o l i c o m .
Tot al col oni es per cc. on ager at 37°c.
Lactoso fermen-
t er s i n
v i b r i o s i n 1 0 0 c c . T r u c o l i c o m .
T o t a l c o l o n i e s p e r c c . o n a g e r a t 3 7°c .
Laotose fermen-
ters in
v i b r i o s i n 1 0 0 c c . Tr u e c o l i c o m.
20 cc.
1 0 c c . 5 c c .
1 c c .
.1 cc.
. 0 1 c c .
2 0 c c . 10 c c .
5 cc.
1 cc.
. 1 cc.
01 cc.
20 cc. 1 0 c c . 5 cc.1 cc. . 1 c c .
. 0 1 c c .
A . — R i v e r w a t e r s a n d i n f i l t r a t i o n g a l l e r i e s i n r i v e r . Bezwda
1 6 0
+ + + + - - - -
2,820 + - - - - - - -
1,110 + - - - - - - -
Cocanada Canal
" Stored
+ + + + + + - + -
1,170 + + + - - - + -
380 + + - - - - + -
150 - - - - - - + -
6 0
- - - - - - - -
160 + + - - - - - -
60 - - - - - - - -
79 - - - - - - + -
Conjeeveram
1 8
- - - - - - - -
1 0 8 + + + + - - - -
G u d i y á t a m
Countless. + + + + - - - -
1,110 + + + + + - - -
Kurnool
3 , 0 0 0
+ + + + + - + -
110 + + + + + - - -
50 + + + - - - - +
1 4 0
+ + + + - - - -
2 0+ + + - - - - -
1,960 + + + + + + - -
100 + + + + - - - -
120 + + + + - - - -
Madura
† + + + + + + - -
1,210 + + + + + + + -
90 + + - - - - - -
900 + - - - - - + -
Nellore
3 0 - - - - - - - -
1300 + + + + - - - -
70 + + + - - - - -
210 + + + - - - - -
Tanjore
80 + + + - - - - -
2,800 + + + + + - - -
380
+ + + + + - - -
200 + + + - - - - -
Trichinopoly
6,220 + + - - - - - -
160 + + + + + - - -
460 - - - - - - - -
400 + + + + - - - -
Tirupati*
380 + + + +
+ + - +
20 +
+ +
+ + -
-
-
Average
1,233
+
+
+ + + - 4/10 1/10
3 0 5
+ + + - - - 1/5 -
1 , 1 0 0 + + + - -
-
B/22A/22
B . — I m p o u n d e d s u r f a c e w a t e r s .
Coonoor
480
+ + - - - - - -
2,860 + + + + - - - -
170 + + + - - - - -
250 + + + - - - - -
Sholavaram
Madras Channel.
Red Hills
500 + + + - - - - -
4,450 + + + - - - + -
7,540 + + + + + - - -
70 + + + - - - - -
Ootacamund
1 0 0
- - - - - - - -
130 + - - - - - - - -
100 + + + + + - - -
7 0
- - - - - - - -
440 + + + + + - - -
1 0
- - - - - - - -
7 0 + - - - - - - -
100 + - - - - - - -
1 0
- - - - - - - -
Vellore
Countless. + + + - - - - - 8 2 0
+ + + - - - - -
1 1 9
+ - - - - - - -
188 + + - - - - - -
Vizagapatam
78 + + + - - - - -
8 + - - - - - - -
1 0
- - - - - - - -
10 + -
- - -
- - - -
Average
1,633 + + + - - - - -
414 + + + - - - - * 6 9 5
+ + - - - - 11/ 12 +
O . —S p r i n g w a t e r s .
Adóni (spring)
2,150
+ + + + - - - -
310
+ + + + - - +
-
2 3 0
+ + + + + - + -
Cuddapah
220 + + + + - - - -
840 + + + + + - - -
1,920 + + + + - - - -
1;130 + + + + + + - -
Dindigul
11.0 + + + + + - - -
8 0
+ + + +- - -
-
100 + + + + - - - -
780
+ + + + + - + -
Gnntfúr
180 + + + + + - + -
4,300 + + + + + - + -
Average
827 + + + + - - -
840+ + + + - - - -
1,003 + + + + + - 5/9 -
* These waters are well waters in the bed of a river.
For the purposes of averages "Countless" is taken to be 10,000.
The various quantities of the sample that showed the presence of fceoal bacilli are marked +; those from which these organism
were absent, are marked—.
† Signifies "not determined."