211
SAMPLE V. - FI RST TAP AFTER RESERVOI R.
C o l o n y n u m b e r .
L a c t o s e .
S a c c h a r o s e .
D u l c i t e .
A d o n i t e .
I n u l i n .
V o g a s a n d P r o s k .
I n d o l .
M o t i l i t y . G r o u p .
Bacilli.
Group and
Remarks.
(a) Total colonies per cc. on agar at 37°-840.
(b) Bile salt lactose, medium.
+
-
B. Lactis ærogenes.
1 + + - + - + - - IV
Group I, 1.
1 tube 20 cc. of water taken
..
.
1
. .
B. Cloacæ) ..
2 tubes 10 cc.
, ,
2
. . 2 + + - - - + - + IV
I I,
n i l
III, 3.
3.,,
5 cc.
,,
..
. . .
3
..
3 + - - - - - + - I B. Vesiculosus
..
3.,,
1 cc.
,,
..
3
. . 4 + +
- - - + - + IV B. Cloacæ ..
..
„ IV, 6.
3.„ .1 cc.
,,
..
3
..
5 ++ + +
++ - - + - - III B. 67
..
.. Class I, nil.
B. 67..
II 3
3.„ .01cc.
,,
..
3
..
6 + + + + - + - - I I I
B. Cloacæ ..
.. , III, 6.
7 + + - - - + - + IV
Undetermined,1.
8 + + +
++ - + + - - I V B. 75
..
..
(c) Fœal bacilli in 01 cc. and upwards.
9 + + - - - + - - IV B. 112
..
.. (Mixture of 6
B. Cloacæ ..
..
10 + ++ - - - + - + IV
species.)
SAMPLE VI.-ONE OF THE FOUR TAPS IN FRONT OF COLLECTOR'S OFFICE
IN BUDARPET.
1 + + - - - + - - IV B. 112
..
.. Group I, nil.
B. 67
..
.
II, nil.
2 + + + + - + - - III
(a ) Total colonies per cc. on agar at 37°-1,190.
III, 4.
3 + + + - - + - - III B 75
..
..
(b) Bile salt lactose, medium.
+
-
IV, 6.
4 + + - + - - - - IV B. Gasoformans ..
1 tube 20 cc.of water taken
..
..
„
Class I, nil.
B. 75
..
..
5 + + + - - + - - III B. Lactis ærogenes ..
6 +
+
- + - + - - IV
II, 5.
2 tubes 10cc
,,
..
..
1
. .
B. 112..
III 3.
3
5 cc.
. .
..
2
. .
7 + + - - - + - - IV
3 „ 1 cc
..
..
3
. .
8 +
±
- + - + - - IV B. Lactis ærogenes .. Undetermined,2.
3
·1 cc
..
..
3
. .
9 + + - + - + - - IV
(Mixture of 4
Do.
..
3 „ ·01 cc
..
3
. .
species.)
B. 75.
10 + + + - - + - - III
3
. .
(c) Fœcal bacilli in .01 cc. and upwards.
SAMPLE VII.-A TAP IN BASTION ROAD TERMINUS.
1
+ + - - - + - - IV B. 112
..
.. Group I, nil.
„ II, nil.
B. Laotis ærogenes ..
2 + + - + - + - - IV
(a) Total colonies per cc. on agar at 37°-2,100.
3 + + + - - - - - III ,, .. ..
„ III, 3.
B. 76
..
..
„ IV, 7.
(b) Bile salt lactose, medium.
+
-
4 + + +
- + + - III
5 ++ + - + - + - - IV
Class I, nil;
B. Lactis ærogenes ..
1 tube 20 cc. of water taken
..
..
1
. .
B. 112
6 + + - - - + - - IV
II, 5
2 tubes 10 cc
,,
.. ..
2
. .
B. 112
III, nil.
7 + + - - - + - - IV
3 ..
5 cc
„
..
..
3
. .
B. 111
..
.. Undetermined, 5.
8 + + - + - + - - IV
9 + + - + - + - - IV
3 .„ 1 cc
,,
. . .
. .
3
. .
(Mixture of 6
B. Lactis ærogenes .. kinds).
3 „ .1 cc.
II.
. . .
3
..
B. Pneumoniæ.
10 + +
+
+ - - - - III
3 „ .01 co
,,
. .
3
. .
(c) Fœcal bacilli in .01 cc. and upwards.
REPORT.
All the samples collected on this occasion show a most inauspicious uniformity. They all show excremental
germs in as little as one hundredth of a cc. The partially flooded state of the canal might account for this State
of affairs in the raw water, but better things are expected from water in settling tanks or which has been filtered.
On the last occasion the failure of the northern settling tank to bring about a reduction in the micro-organisms
was attributed to a local and temporary cause but on this occasion neither of the settling tanks has produced any
betterment, indeed any change is in the opposite direction. This downward change is more marked in the case
of the water from the distributary system in which we find a most undesirably varied fœcal flora. This is in
sad contrast to the state of affairs last quarter. The pipes should be scoured out, but it would need to be with
better water than is at present coming from the settling tanks and the filters.
Chemically there is little to note the water being definitely above the average in purity.
54