39
VELLORE.
WATER SAMPLES TAKEN—26TH MARCH 1912.
REMARKS. —The tank now contains about 23.03 feet of water. The supply is intermittent.
There has been about 0.25 inch of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—UNFILTERED WATER FROM A TAP BEFORE IT IS
LET INTO FILTER-BEDS.
Total colonies per cc. on agar at 37° C.—227
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 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..
Bile salt lactose, medium.
+
-
1 tube of 20 cc. ...
...
1
1
+ - - - - - + +
I
B. Grunthal
... Group
I, 10.
2 tubes of 10 cc. ...
...
...
2
. . .
2
+ - - - - -
+ +
I
Do.
„ I I ,
n i l .
3
„ 5 cc. ...
... ...
3
. . .
3 +
- - - - - + +
I
Do.
„ I I I ,
n i l .
3
„ 1 cc. ...
... ...
3
. . .
4
+ - - - - - + +
I
Do.
„ I V ,
n i l .
3
„ .1 cc. ... ... ...
1
2
5
+ - - - - - +
+
1
Do.
3 „ .01 cc. ... ... ... ...
1
2
6
+ - - - - - + +
I
Do.
7
+ - - - - -
+ +
I
Do.
... Class
I, nil.
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
8
+ - - - - - + +
I
Do.
...
„
II, nil.
9 + - - - - - + +
I
Do.
...
„
III, 10.
1 0
+
- - - - - + +
I
Do.
SAMPLE II.—FIRST TAP AFTER FILTER-BEDS.
Total colonies per cc. on agar at 37°C.—216.
1 + + - - - - +
+
IV B. 106
...
... Group
I, 2.
2 + - - + - - + +
I B. 1
„ I I , n i l .
Bile salt lactose, medium.
+
_
3 + + - - - - + + IV B. 106
... „ III
, nil.
4 + + - - - - + + IV
Do....
„ IV, 8 .
1 tube of 20 cc.
...
..
...
...
1
..
5 + + - - - - + + IV
Do.
6 + + - - - - + + IV
Do.
2 tubes of 10 cc.
...
...
...
...
2
7 + - - + - - + +
I B. 1.
3
„
5 cc.
...
3
...
8 + + - - - - + + IV B. 106
...
.. Class
I, nil.
3
„
1 cc.
...
2
1
9 + + - - - - + + IV
Do.
„ I I , 1 0 .
10 + + -
-
- - + + IV
Do.
„ III, nil.
3
„
.1 cc.
...
...
...
3
3
„ •01 cc.
...
...
...
...
...
3
Fœecal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN SAIDAPET.
Total colonies per cc. on agar at 37° C.—246.
1 + + - + - - - - IV B. Gasoformans ... Group I, nil,
2 + + - - - + - + IV B. Cloaca).
„I
I,
n i l .
3 + + + - - - + - III B. Neapolitanus ...
„
III, 1.
Bile salt lactose, medium.
+
_
4 + + - + - - - - IV B. Gasoformans ...
„
IV, 9.
5 + + - - - + - + IV
B. Cloacæ
6 + + - - - + - + IV
Do.
1 tube of 20 cc.
...
...
...
...
1
...
7 + + - - - + - + IV
Do.
2 tubes of 10 cc.
... ... ... ...
2
...
8 + + - - - + - + IV
Do. ... Class
I, nil.
3
„
5 cc.
...
...
...
...
3
..
9 + + - - - + - + IV
Do.
„ I I , 4 .
3
„
1 cc.
...
...
...
3
..
10 + + - + - - - - IV B. Gasoformans ...
„
III, 6.
3
„
.1 cc.
...
...
...
2
1
3
„ . 0 1 c c . . . . . . . . . . . . .
3
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP NEAR CANTONMENT RAILWAY STATION
COMPOUND.
Total colonies per cc. on agar at 37° C.—840.
1 + + - - - - + + IV B. 106
...
... Group I, nil.
2 + + - - - - + + IV
Do.
II, nil.
3 + + - - - - + + IV
Do.
III, nil.
4
+ + - - - - + + IV
Do.
IV, 10.
5 + + - - - - + + IV
Do,
Bile salt lactose, medium.
+
_
6 + + - - - - + + IV
Do.
...
... Class I, nil.
7 + + - - - - + + IV
Do.
II, 10.
8 + + - - - - + + IV
Do.
...
...
„ III, nil.
1 tube of 20 cc. ...
...
...
...
. . .
1
9 + + - - - - + + IV
Do.
10 + + - - - - + + Iv
Do.
2 tubes of 10 cc. ...
...
...
1
1
3
„
5 cc.
...
...
...
. . .
3
3
„ 1 c c .
3
3
„ . 1 c c .
3
3 „ . 0 1 c c .
. . .
3
Fœcal bacilli present in 60 cc.
No vibrios in 100 cc.