131
GUDIYATTAM.
WATER SAMPLES TAKEN—5TH OCTOBER 1912.
Remarks.—The river Koundanya was in floods when samples were taken. The supply is
constant. There has been about 10.42 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—TAP ADJOINING THE SERVICE RESERVOIR.
N u m b e r .
L a c t o s e .
S a c c h a r o s e .
Dul ci t e.
A d o n i t e . I n u l i n .
V o g e 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 .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—2,560.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
...
1
. . .
1 + + -
- - - + + IV B. 106
...
Group I, 7.
2 tubes of 10 cc.
...
...
...
...
2
. . .
2 + - -
- - - + - I B. Vesiculosus
...
„ II, nil.
3 „
5 cc.
...
...
...
...
3
. . .
3 + - -
- - - + + I B. Grunthal
...
„ III, 1.
3 „
1 cc.
...
...
...
...
3
. . .
4 + - -
- - - + - I B. Vesiculosus.
„ IV, 2.
3 „ .1 cc.
...
...
...
...
2
1
5 + - -
- - - + - I
Do.
3 „ .01 cc.
...
...
...
...
1
2
6 + + + - - - + - III B. Neapolitanus.
Fœcal bacilli in .1 cc. and upwards.
7 + - -
- - -
+ - I B. Vesiculosus.
8 + - -
- - - + + I B. Grunthal
... Class I, nil.
No vibrios in 100 cc.
9 + + -
- - - + - IV B. Coscoroba
„ I I , 3 .
1 0 + - -
- - - + - I B. Vesiculosus.
...
„ III, 7.
SAMPLE II.—TAP NEAR MAHOMEDAN SCHOOL AT DHARNAMPET.
Total colonies per cc. on agar at 37° C.—3,520.
1 + - - - - - + -
I B. Vesiculosus
... Group I, 6.
2 + - -
+ - - + -
I B. Acidi lactici
...
„ II, nil .
Bile salt lactose, medium.
+
-
3 + + -
+ - + - -
I V B. Lactis ærogenes...
„ III, 2.
4 + + + - - - + -
I I I B. Neapolitanus. ...
„ IV, 2.
5 ++ - - - - + -
I V I B. Coscoroba.
1 tube of 20 cc.
...
...
...
...
1
. . .
6 + - - - - - + -
I B. Vesiculosus.
7 + - - - - - + -
I
Do.
2 tubes of 10 cc.
...
...
...
...
2
. . .
8 + - - + - - + -
I B. Acidi lactici
.. Class I, nil.
3 „
5 cc.
...
...
...
...
3
. . .
9 + + + + - + - -
I I I
B. 67
...
„ I I , 7 .
3 „ 1 cc.
...
...
...
...
3
. . .
1 0 + - - + - - + -
I B. Acidi lactici
...
„ III, 3.
3 „ .1
cc.
...
...
...
...
3 ...
3 „ .01
cc.
...
...
...
...
1
2
Fœcal bacilli in .1 cc. and upwards.
No vihrios in 100 cc.
SAMPLE III.—TAP IN FRONT OF TRAVELLER'S BUNGALOW.
1 + -
-
- - -
+ -
I B. Vesiculosus
... Group I, 10.
Total colonies per cc. on agar at 37° C.—3,730.
2 + - -
- - - + -
I
Do.
...
„ I I ,
n i l .
3 + - -
- - - + -
I
Do.
...
„ III, nil.
4 + - -
- - - + -
I
Do.
...
„ IV, nil.
Bile salt lactose, medium.
+
-
5 + - -
- - - + -
I
Do.
...
6 + - -
- - - + -
I
Do.
...
7 + - -
- - - + -
I
Do.
...
1 tube of 20 cc.
...
...
...
1 ...
8 + - -
- -
- + +
I B. Grunthal
... Class I, nil.
9 + - -
- - - + -
I B. Vesiculosus
...
„ II, nil.
2 tubes of 10 cc.
...
...
...
2
. . .
1 0 + - -
- - - + -
I
Do.
...
„ III, 10.
3 „
5 cc.
...
...
..
.
3
. . .
3 „
1 cc.
...
...
..
.
3
. . .
3 „ .1 cc.
...
...
..
.
3
. . .
3 „ .01 cc.
...
...
..
.
3 ...
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
The results got on this occasion are frankly bad. The total counts are huge and the variety in species
among the fæcal germs is very large. Fortunately there are none of the highly susceptible germs which are
indicative of recent pollution present, but there is no reason to believe that such might not appear at any
time. The sand or rather fine gravel that the river bed is composed of can effect little or no improvement in
the water and with the condition of flood a very impure supply is inevitable. Some form of treatment such
as storage is eminently desirable in a case such as this.
Chemically the water is rather hard for a river water and possibly a good deal of subsoil water finds its
way into the gallery, but it is on the whole pretty fair.
38