87
GUDIY ATTAM.
WATER SAMPLES TAKEN-4TH JULY 1912.
Remarks .—The River-bed of Koundanya was dry when samples were taken. The supply is
constant. There has been about 1.50 inches of rain since last analysis.
Bacteriological Analysis.
SAMPLE I.—TAP ADJOINING THE SERVICE RESERVOIR
N u m b e r .
L a c t o s e .
Sacchar ose.
Dul ci t e. A d o n i t e .
Inulin.
Vo g e s a n d P r o s k .
I ndol . Mot i l i t y.
Group.
Total colonies per cc. on agar at 37° C.—3,020.
Name of Bacillar.
G roup and
Remarks.
Bile salt lactose, medium.
+
–
1.tube of 20 cc.
1.
...
1 + +
+
- - - + + III B. 7l
Group I, nil.
2 tubes of 10 cc.
2
. . .
2 + + + - - - + + III
Do
„II, nil.
3„ 5 cc.
3
. . .
3 + + - - - - + + IV B. 106
„ III, 6.
3 „1 cc.,
3
. . .
4 + + -
+
- - + + III B. 71
„ IV, 4.
3 „ 1 cc.
1
2
5 + + +
+
- - + + III Do.
3 „ 0 1 c c .
. . . 3
6 + + - - - - +
+
III Do.
7 + + - - - - - + IV B. 106.
Fœcal bacilli in 1 cc. and upwards.
8 + + + - - - + + III B. 71
Class I, nil.
9 + + - - - - + + IV B. 106
„ II, 10.
No vibrios in 100 cc.
10 + + -
- - +
+
IV
Do
„ III, nil.
SAMPLE II.—TAP NEAR MOHAMMEDAN SCHOOl, AT DHARNAMPET.
1 + + - - - - + + IV B. 106.
Group
I, nil.
2
+ + + - - - - +
++ IV
Do.
„„ II, nil.
Total colonies per cc. on agar at 37° C.—600.
3 + + - - - - + + IV
Do.
„ III, nil.
4 + + - - - - + + IV
Do.
„ IV, 10.
5 + + - - - - + + IV
Do.
Bile salt lactose, medium.
+
-
6 + + - - - - + + IV
Do.
7 + + - - - - + + IV
Do.
8 + + - - - - + + IV
Do.
Class I, nil.
1 tube of 20 cc.
1
...
9 + + - - - - + + IV
Do.
„ II, 10.
2 tubes of 10 cc.
2
...
10 + + - - - - + + IV
Do.
„ I I I .
n i l .
3 „ 5 cc.
3
. . .
3 „1 cc.
3
...
3 „1 cc.
2
3
3 „.01 cc.
...
3
Fæcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN FRONT OF TRAVELLERS ' BUNGALOW.
1 -I- + + — — — + + III B. 71
Group I, nil.
2 + + + - - - + + III
Do.
II, nil.
Total colonies per cc. on agar at 37° C.—350.
3 + + + - - - + + III Do.
III, 10.
4 + + + - - - + + III Do.
„ IV, nil.
5 + + + .- - - + + III
Do.
Bile salt lactose, medium.
+
-
6 + + + - - - + + III Do.
__
7
- - - ++ III Do.
8 + + + - - - + + III
Do.
Class 1, nil.
1 tube of 20 cc.
1
. . .
9 + + + - - -
+ + III Do.
„
II, 10.
2 tubes of 10 cc.
2
. . . 10 + + + - - - + + III Do.
„ III, nil.
3 „
5 cc.
3
. . .
3 „
1 cc.
3
. . .
3 „
, 1 cc.
2
1
3 „ .01 cc.
. . .
3
Foecal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
Gudiyattam water does not maintain both the satisfactory features noted at this season last year, when,
for the first time, low total counts were got. This year, though there are no vibrios, the total count is huge,
and yet there seems to have been much the same sort of meteorological conditions. The sample taken at
Dharnampet is better, four-fifths of the total organisms having been got rid of. There is, however, no
reduction of the fœcal germs, and, in the sample taken from the Travellers' bungalow there is, in spite of a
still farther decrease in the total count, a marked increase in the fœtal germs. This is not as it should be and
the pipes should probably be the better of being scoured out more frequently. Chemically the water is much
as usual. A. high figure for temporary hardness and a good deal of alkaline sulphate are the worst features.
26