89
TANJORE.
WATER SAMPLES TAKEN—18TH APRIL 1910.
R E M A R K S . —
T h e r i v e r b e d o f C o l e r o o n i s d r y . A c h a n n e l i s c u t i n t h e s a n d a n d t h e w a t e r i s a l l o w e d t o s t a n d o v e r t h e g a l l e r y t o i n c r e a s e
the yield. The supply is intermittent. There has been about 1.97 inches of rain since last analysis. The supply is
inadequate during this part of the year.
Bacteriological Analyses.
SAMPLE I .—FROM A CHANNEL CUT IN THE BED OF THE RIVER
COLEROON .
C o l o n y n u m b e r .
Lact os e.
S a c c h a r o s e .
Dnl c i t e.
Adoni t e.
I nul i n.
Vo g e s a n d P r o s k .
Indol .
Motility.
Group.
Bacillus.
Group and
Remarks.
Total colonies per cc. on agar at 37°C—220.
+
-
Bile salt lactose, medium.
1 tube of 20 cc. of water taken ..
..
1
. .
1 + +
+ - - - +
-
I I I B. Neapolitanus .. Group I, 4.
2 tubes of 10 cc.
„
..
..
2
..
2 + - - + - - + -
I B. Acidi Lactici
..
„
II, 1.
3
„
5 cc.
„
..
..
3
..
3 + - + - - - + -
I I B. Schæfferi
..
„ III, 3.
3 „
1 cc.
„
.. ..
3
. .
4 + - - + - - + -
I B. Acidi Lactici
..
„ IV, 2.
3 „
.1 CC.
„ .. ..
3
. .
5 + + + - - - + -
I I I B. Neapolitanus.
3
„
. 0 1 c c .
„
.. ..
3
..
6 + - - - - - - -
I B. Mutabilis.
7 + - - + - - + -
I B. Acidi Lactici
.. Class I, 1.
Fœcal bacilli in .01 cc. and upwards.
8 + + - - - - + - IV B. Coscoroba ..
„
II, 8.
9 + + + - - - + - III B. Neapolitanus
..
„
III, 1 .
No vibrios in 100 cc.
10 + + - - - - + -
I V B. Coscoroba.
SAMPLE II.—FROM COLLECTING WELL.
1 + + - + + - -
-
IV B. 99
..
.. Group I, 1.
2 + + - + + - - - IV Do. .. ..
„
II, nil.
Total colonies per cc. on agar at 37°C—260. +
-
3 + + - + + - - - IV
Do . . . . .
„
III, nil.
4 + + - + + - - - IV
Do. .. ..
„
IV, 9.
Bile salt lactose, medium.
5 + + - + + - - - IV Do.
..
.. Class I, 9
6 + + - + + - - - IV
Do. .. ..
„ II, nil.
1 tube of 20 cc of water taken ..
..
1
. .
7 + + - + + - - - IV Do. .. ..
„
III, 1.
2 tubes of 10 cc.
„
..
..
2
. .
8 + + - + + - - - IV Do.
3
„
5 cc.
„
. . . .
2
1
9
+ + - + + + - -
I V B. 98.
3
„
1 cc.
„
..
..
1
2
10 + - - - - - - -
I B. Mutabilis.
3 „
.1 cc .
„
..
..
. .
3
3 ,,
. 0 1 c c .
,,
..
..
..
3
Fœcal bacilli in 5 cc. and. upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN MUNICIPAL OFFICE.
1 + + - + + + - - IV B. 98
..
.. Group I, nil.
Total colonies per cc. on agar at 37°C.—80.
2 + + - + - + - - IV B. Lactis ærogenes.
„
II, nil.
3 + + - + - + - - IV
Do.
„
III, nil.
Bile salt lactose, medium.
+
-
4 + + - + + + - - IV B. 98 .. ..
„
IV, 10.
5 + + - + + + - - IV Do.
6 + + - + + + - - IV
Do. .. ..
Class I, 5.
1 tube of 20 cc. of water taken ..
..
1
. .
7 + + - + - + - - IV B. Lactis ærogenes.
„ II, 5
2 tubes of 10 cc.
„
. . . .
2
. .
8 + + - + + + - - IV B. 98
..
..
„ III, nil.
3
„
5 cc.
„
.. ..
3
. .
9 + + - + - + - - IV B. Lactis ærogenes.
3 ,,
1 cc.
„
..
..
2
1
10 + + - + - + - - IV
Do.
3 ,,
.1 cc.
„
.. ..
. .
3
3
„
. 0 1 c c .
„
..
..
. .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
The samples obtained on this occasion give very conflicting results. The water from the channel cut in
the bed of the river Coleroon is frankly bad. It contains one hundred fœcal germs to the cc. and Class I
is represented, showing that this extensive pollution has also been recent. Has this any connection with the
digging operations in the river bed ?
The sample from the collecting well is very much better and taking the meteorological conditions into
consideration is really quite good.
Sample III from a tap in the Municipal Office is a great come-down from the last. There is a large
increase of fœcal germs and half of these belong to the susceptible Class I. These cannot have been in the
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