70
SAMPLE V.—FIRST TAP AFTER RESERVOIR.
C o l o n y n u m b e r .
L a c t o s e .
Sa c c ha r os e .
D u l c i t e .
A d o n i t e .
Inulin.
V o g e s a n d P r o s k .
I ndol .
M o t i l i t y .
Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37°—630.
Bile salt lactose, medium,
+
—
1 tube of 20 cc. ..
..
..
..
• •
1
..
1 +
++
— — — — — + IV B. 109
Group
I ,
n i l .
2 tubes of 10 cc. ..
..
• •
• •
2
...
2 + + — — — + — + IV B. Cloacæ ..
..
„
I I ,
n i l ,
3
„
5 cc. ..
..
..
..
..
3
3 + + — — — + — + IV
Do
..
„
III,n i l .
3
„
,,
1 cc. ..
..
..
..
3
4 ++ + — ——— — ++ IV
Do.
..
• -
„
I V , 1 0 .
3 „
. 1 c c .
. .
. .
..
3
5 + + — — — + — + IV
Do.
..
..
....
3
„
.01 cc. ..
..
..
...
..
3
6 + + ——— + — + IV
Do.
..
7 + + — — — + —++ IV
Do.
.... Class
I ,
n i l .
8 + + — — — + —+ IV Do.
„
I I ,
n i l .
Fœcal bacilli in 10 cc. and upwards.
9
+ + ———— — + IV B. 109
„ III, 10.
No vibrios—in 100 cc.
10 + + — — — + — + IV B Cloacæ.
SAMPLE VI.—TAP IN FRONT OF COLLECTOR' S OFFICE IN BUDARPET.
1
+
+ — — —
+ — + IV B. Cloacæ ..
.. Group I, 1.
2 + + — — — + — + IV
Do.
..
..
„
II, nil.
3 + + — — — + — +
I V
Do.
• •
..
„ III, nil.
Total colonies per cc. on agar at 37°—320.
4 + + — — — + — +
I V
Do.
...
• .
,, IV, 9.
5 + + — — — + — + IV
Do.
6 + + —— —+ + + IV B. 113.
Bile salt lactose, medium.
+
—
7 + + — — — + — + IV B. Cloacæ ..
. . Class I, nil.
8 ± + — — — + — + IV
Do.
..
„ II, nil.
9 + + —————+ I B. 7 `..
..
.. i
„ III, 0.
1 tube of 20 cc. ..
..
..
..
..
1
..
10 + + ———+ — + IV B. Cloacæ ..
.. ; Undetermined,
2 tubes of 10 cc. . ,
..
..
..
• •
2
..
1.
3 „
5 cc. ..
..
..
..
3
3
„
1 c c .
..
3
3 „
. 1 c c .
.
..
3
3
„
. 0 1 c c .
..
3
Fœcal bacilli in 10 cc. and upwards.
No vibros in 100 cc.
SAMPLE VII.—TAP IN BASTIAN ROAD TERMINUS.
1
+ —
— — + — — IV B. Cloacæ. ..
.. Group I, nil,
2
+ + —————— IV B III
„
II, nil.
3 + + — + — — — — IV B. .Lactisærogenes ..
„
III, nil,
Total colonies per cc. on agar at 37°—Cannot be counted.
4 + + —— — — — + IV B. Cloacæ..
..
„ lV, 10.
5 + + — — — — — — IV B. 112.
6 + + — — — — — — IV B. 111.
Bile salt lactose, medium.
+
—
7 + + — — — + + — IV B. Coscoroba
.. Class I, nil.
8 + + —— — + — — IV B. 112..
„
II, 2.
9 + + — — — + —— IV B. Cloacæ
..
„
III, 4.
1 tube of 20 cc.
•
.,
..
..
•
1
. . 10 + + —— — + — + IV
Do.
• ,
. Undetermined,
2 tubes of 10 cc. ..
..
2
. .
4.
3
„
5 c c .
. .
3
3
„
1 c c .
. .
3
2
„
. 1 c c .
. .
. .
. .
3
3
„
.01 cc. ..
• •
• '
"..
. .
3
(c) Fœcal bacilli in 10 cc. and upwards.
(d) No vibros—in 100 cc.
REPORT.
The river water is as bad as ever this quarter, but its condition is probably beyond the control of the
local authorities. Surely, however, something better could be achieved by means of the settling tanks. In the
past river water just as bad has been converted into quite passable water in these tanks, but on this occasion
and as was seen last quarter no material improvement has resulted from passage through the tanks. Settling
tanks are as a rule very efficient in Madras, so it seems hardly likely that these are being properly managed.
A slight improvement has resulted from the filtration of the water, but nothing like what we expect from
good filters properly worked. There are still ten fœcal germs to the cc. and a most undesirable variety of
species. A very great improvement is noticed as a result of mysterious and unfortunately uncontrollable
pipe action. If this improvement is the result of the securing out of the pipes recommended after the last
examination, the scouring out has been quite effective and should be repeated periodically.
Chemically the water is quite fair and calls for no remark.