151
MADURA.
WATER SAMPLES TAKEN—10TH NOVEMBER 1912.
Remarks.— There was a small flow of water on the other bank of the Vaigai River when samples
were taken. Spring channels are cut in the bed of the river to increase the yield.
Supply is intermittent. There has been about 12.65 inches of rain since last
analysis.
Bacteriological Analyses.
SAMPLE I.—FROM A SPRING CHANNEL CUT IN THE BED OF THE
RIVER VAIGAI.
Nu mb e r . L a c t o a e .
S a c c h a r o s e . D u l o i t e .
A d o n i t e .
Inul i n.
V o g a a n d P r o s k .
Indol.
M o d a l i t y .
Gr oup.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C. —4,200.
Bile salt lactose, medium.
+
-
1 tube of 20 cc. ...
...
..
1
...
1
+ - -
-
-
- + - I B. Vesiculosus
... Group I, 9.
2 tubes of 10 cc. ...
...
...
...
2
...
2 + - - - - - + - I B. Acidi lactici ...
„
II, nil.
3
„ 5 c c .
. . .
. . . 3
...
3
+ + + -
- - + - III
?
3
„ 1 c c .
. . .
... ...
3
...
4 +
- - -
- -
+
-
I B. Vesiculosus
...
„ III, l.
3 „
. 1
c c .
. . .
... ...
...
3
...
5 + - - - - - + - I
Do.
...
„
IV, nil.
3
„ . 0 1 c c .
. . .
. . .
. . .
... ...
3
6 + - - + - - + - I B. Acidi lactici.
7 + - - - - - + - I B. Vesiculosus.
Fœcal bacilli in .1 cc. and upwards.
8 + - - -
- - + + I B. Grunthal
. . Class I, nil.
9
+ - - - - - + - I B. Vesiculosus
...
„
II, 2.
No vibrios in 100 cc.
10 + - -
- - - + - I
Do.
...
„ III, 7.
SAMPLE II.—TAP IN FRONT OF PUMPING STATION.
1 + + + - - - + + III B. 71
...
... Group I, nil.
2 + + + - - - + + III Do.
...
...
„
II, nil.
Total colonies per cc. on agar at 37° C.–164
3 + + + - - - + + III
Do.
...
...
„ III, 10.
Bile salt lactose, medium.
+
-
4 + + + - - - -
+
III Do.
„ I V ,
n i l .
5 + + + - - - + + III Do.
6 + + + -
- - + + III
Do.
1 tube of 20 cc.
. ... ...
1
. . .
7 + + + - - - + + III
2 tubes of 10 cc.
...
...
. . .
2
8 + + + - - - + + III
Do.
...
... Class I, nil.
3
„
5 cc.
...
...
...
1
2
9 + + + - - - + + III
Do
„ II, 10.
3
„
1.cc.
.
3 10 + + + - - - + + III Do.
...
...
„ III, nil.
3
„
.1 cc.
...
...
...
3
3
„ .01 cc. ... ... ...
...
3
Fœcal bacilli in 20 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN MANGAMMAL CHATTRAM.
1 + + + - - +
- - III B. 75
...
... Group I, nil.
2 + + + - - + - - III
Do.
„ II, nil.
Total colonies per cc. on agar at 37° C. —340.
3 + + + - - + - - III
Do.
...
...
„ III, 10.
Bile salt lactose, medium.
+
-
4
+ + +
+ - + - - III
Do.
„ IV, nil.
5 + + + - - + - - III B. 73
6 + + + - - + - - III B. 75
1 tube of 20 cc.
...
...
..
••
1
...
7 + + + - - + - + III B. 73
8 + + + - - + - - III B. 75
...
... Class I, nil.
2 tubes of 10 cc.
... ... ... ...
2
...
9 + + + - - + - - III Do.
... „
II, nil.
3 „ 5 C. ,
...
... ...
3
...
1 0 + + + - - + - -
I I I Do.
...
...
„
III, 10.
3
„ 1 cc. ... ...
2
1
3
„
. 1
c c .
. . .
. . .
. . .
...
3
3
„
. 0 1 c c .
. . .
... ... ... ...
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—PILLAR FOUNTAIN NO. 1/1, NEAR BIG TEPPAKULAM. 1 +
- - - - - + - I B. Vesiculosus
... Group I, 8.
2 + + - + - + - - IV B. Lactis ærogenes ...
„ II, nil.
Total colonies per cc. on agar at 37° C. — 200.
3 + - - - - - + - I B. Vesiculosus.
„ III, nil.
4 + - - - - - + + I B. Grunthal...
„ IV, 2.
Bile salt lactose, medium.
+
-
5 + -
- - - - + + I
Do.
6 + -
- - - - + + I
Do.
7 + -
- + - - -
+
I B. 1.
8 +
- - - - + - I B. Vesiculosus
Class I, nil.
1 tube of 20 cc.
...
... ... ...
1
...
9 + -
- - - - + - I
Do.
.
„ I I , 3 .
2 tubes of 10 cc.
......
2
...
10 + + - + - + - - IV B. Lactis ærogenes ... „ III, 7.
3
„
5 cc.
...
... ...
3
...
3
„
1 cc.
... ...
...
3
...
3
„
. 1
c c .
. . .
... ...
1
2
3
„
. 0 1
c c .
. . .
. . .
... ...
1
2
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc .
43