89
VELLORE.
WATER SAMPLES TAKEN—4TH JULY 1912.
Remarks.—The tank now contains about 15.52 feet of water. The supply is intermittent.
There has been about 2 . 37 inches of rain since last analysis.
Bacterological Analysis.
SAMPLE 1.—UNFILTERED WATER FROM A TAP BEFORE IT IS
LET INTO FILTER BEDS.
Total colonies per cc. on agar at 37° C.—1,140.
N u mb e r . L a c t o s e .
S a c c h a r o s e .
Du l c i t e .
A d o n i t e .
I nul 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
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
......
1
..
1 + + - - - + - + IV B. Cloacæ
...
... Group I, nil.
2 + + - - - + - + IV
Do.
"
III nil.
2 tubes of 10 cc.
...
...
...
...
1
1
3 + + - - - + - + IV
Do.
" III, nil.
3
" 5 c c .
1
2
4 + + - - - + - + IV
Do.
. . .
"
IV, 10.
3
"
1 cc.
...
...
...
. . .
3
5 + + - - - + - + IV
Do.
3
" . 1 c c .
...
3
6 + + - - - + - + IV
Do.
3
" .01 cc. ...
...
...
...
...
3
7 + + - - - + - + IV
Do.
8 + + - - - + - + IV
Do.
... Class I, nil.
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
9 + + - - - + - + IV
Do.
...
"
II, nil.
10 + + - - - + - + IV
Do.
III, 10.
SAMPLE II—FIRST TAP AFTER FILTER BEDS.
Total colonies per cc. on agar at 37° C.—470.
1 + - - - - - + -----
I B. Vesiculosus
... Group I, 10.
2 + - - - - - + -
I
Do.
...
"
II, nil.
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
Do.
.. Class I, nil.
9 + - - - - - + -
I
Do.
...
"
II, nil.
2 tubes of 10 cc.
...
...
...
. . .
2
... 10 + - - - - - + -
I
Do.
...
" III, 10.
3
" 5 c c .
. . .
. . .
. . .
. . .
3
...
3
" , 1 c c .
. . .
. . .
. . .
. . . ...
3
3
"
.1 cc.
...
...
...
. . .
...
3
3 " . 0 1 c c .
. . .
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP AT THE END OF MAIN BAZAAR ROAD IN
SAIDAPET.
Total colonies per cc. on agar at 37° C.—210.
1 + + - - - - + + IV B. 106
...
... Group I, nil.
2 + + - - - - + + IV
Do.
...
...
"
II, nil.
3 + + - - - - + + IV
Do.
...
... "
III, nil.
Bile salt lactose, medium.
+
-
4 ++ - - - - + + IV
Do.
...
...
" IV, 10.
5 + + - - - - + + IV
Do.
6 + + - - - - + + IV
Do.
1 tube of 20 cc .
...
...
...
. . .
1 ...
7 ++ - - - - + + IV
Do.
8 + + - + - + - + IV B. 102
...
... Class I, ni l.
2 tubes of 10 cc. . . .
. .
2
. . .
9 ++ - - - - + + IV B. 106
...
...
"
II, 10.
3
" 5 cc. ... ... ...
...
1
2
10 ++ - - - - + +
I V
Do.
...
...
" III, nil.
3 " 1 cc ... ... ....
...
3
3 " . 1 c c . . . . . . . . .
. . . . . . 3
3 " . 0 1 c c . . . . . . . . . . .
...
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP NEAR CANTONMENT RAILWAY STATION COM-
POUND.
Total colonies per cc. on agar at 37° C.—1,390
1
+ + - + -
+ - - IV
B. Lactis ærogenes
Group I, nil.
2 + + - + - + - - IV
Do.
II, nil.
3 + + - + - + - -
IV
Do.
...
" III, nil.
Bile salt lactose, medium.
+
-
4 + + - + - + - -
IV
Do.
" IV, 10.
5 + + - + - + - -
IV
Do.
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.
...
"
H, 9.
3
" 1 c c .
. . .
1
2
10+ + - + - + + -
IV B. 116
. .. ...
"
III, nil.U n d e t e r m i n e d , 1 .
3
"
. 1
...
3
3
"
. 0 1 c c .
. . .
. . .
. . .
. . . ...
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.