63
MADURA.
WATER SAMPLES TAKEN—20TH MAY 1912.
Remarks.--The river-bed of the Vaigai was dry when samples were taken. Spring channels
are cut in the bed of the river to increase the yield. The supply is intermittent.
There has been about 3·01 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 . Lact ose.
Sa c c ha r os e .
Dul ci t e.
Adoni t e. Inul i n.
V o g e l a n d p r o s k .
Indol.
Mot i l i t y.
Gr o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37º C.—2,280.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
1 .
1 + - - - - - + -
I B. Vesiculosus
Group I, 7.
2 + + - - - - + - IV B. Coscoroba
,, II, nil.
2 tubes of 10 cc.
2
.
3 + - - - - - + -
I B. Vesiculosus
,,
III, 1.
3
,,
5 cc.
3
4 + - - + - - + -
I B. Acidi lactici
..
„ IV, 2.
3
1 cc.
3
...
3 .1cc.
.
3
5 + - - + - - + -
I
Do.
6 + - - - - - + -
I B. Vesiculosus.
3
, , . 01cc.
.
3
7 + + + + - + - - III B.67.
F o e c a l b a c i l l i i n 1 c c . a n d u p w a r d s
Foetal
an.
bacilli
9
+ - - - + - + - IV B. Gasoformans
Class I, nil.
9 +
+ — I B. Vesiculosus
...
„ II, 6.
100
No vibrios in
cc.
10 + - - + - - + -
I B Acidi lactici
... „ III, 4.
SAMPLE II.—TAP IN FRONT OF PUMPING STATION.
1 + + - + - + - - IV B. Lactisærogenes
Group
I, nil.
Total colonies per cc. on agar at 37º C.—47.
2 + + - + - + - - IV
Do.
,,
II, nil.
3 + + - - - + - - IV B. 112
,, III, nil.
Bile salt lactose, medium.
+
-
4 + + - - - + - - IV Do. .. ..
,,
IV, 10.
5 + + - - - + - - IV Do.
6 + + - - - + - - IV
Do.
7 + + - + - + - - IV B. Lactis æerogenes Class I, nil.
1 tube of 20 cc.
1
..
8 + + - - - + - - IV B.112
„
II, 3.
9 + + - - - + - + IV B. Cloncæ
,,
III, 1.
2 tubes of 10 cc.
...
...
...
...
2
...
10 + + - - - + - - IV B. 112
Undetermined,
6.
3
„
5 cc.
1
2
3
„
1 cc.
1
2
3
„
.1 cc.
.
3
3
„
.01 cc.
.
3
Foecal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN MUNGAMMAL CHATRAM.
1 + + - + - + - - IV B. Lactis ærogenes. Group I, nil.
2 + + - + + - + - - IV
Do.
,, II, nil.
Total colonies per cc. on agar at 37º C.—50.
3 + + - + - + - - IV
Do. ,, III, nil.
Bile salt lactose, medium.
+
_
4 + + - + - + - - IV
Do.
,, IV, 10.
5 + + - + - + - - IV
Do.
1 tube of 20 cc.
...
...
...
...
1
.
6 + + - + - + - - IV
Do.
7 + + - + - +++ - - IV
D o .
8 + + - + - + - - IV
Do. ...
Class I, nil.
2 tubes of 10 cc.
..
..
.....
2
9 + + - + - + - - IV
Do.
II, 10.
3
„
5 cc.
...
...
...
...
3
.
10 + + - + -
+
- - IV
Do.
,,
III , nil.
3
„
1 cc.
••.
•••
•••
•••
3
.
3
,, .1. cc. .........
1
2
3
„
'01 cc.
.
3
Foetal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—PILLAR FOUNTAIN No. 1 NEAR BIG TEPPAKULAM.
1 + - - + - - + -
I B. Acidi lactici
... Group I, 6.
Total colonies per cc. on agar at 37° C.—28
2
+ - - + - - + -
I
Do.
...
„ II, nil.
3 + + - - - - + - IV B. Coscoroba
...
„ III, nil.
Bile salt lactose, medium.
+
-
4 + - - + - - + -
I B. Acidi lactici
...
„ IV, 4.
5 + - - + - - + -
I
D o .
1 tube of 20 cc.
1
.
6 + - - + - - + -
I
D o .
7 + + - - - - + - IV B. Coscoroba.
2 tubes of 10 cc.
...
...
2
.
8 + + - - - - + - IV
Do.
... Class I, nil.
3
„
5 cc.
...
...
... ...
2
1
9 + - - + - - + -
1 B. Acidi lactici ...
„
II, 10.
3
„
1 cc.
...
...
..
.
3 10 + + - - - - +
-
IV B. 106
III, nil.
3
,, .1 cc. ... .. ... ...
.
3
3
„ . 0 1 c c .
. . .
...
3
Foecal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
19