100
VELLORE.
WATER SAMPLES TAKEN—5TH DECEMBER 1911.
REMARKS.—The tank now contains about 24.20 feet of water. The supply is intermittent. There has been about 14.19 inches of
rain since last analysis.
Bacteriological Analyses.
SAMPLE I.-UNFILTERED WATER FROM A TAP BEFORE IT IS LET
INTO FILTER BEDS.
N u m b e r .
L a c t o s e .
Saccharose.
D u l c i t e .
A d o n i t e . I n u l i n e .
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.-190.
Bile salt lactose, medium.
+
-
1 tube of 20 cc. . . .
. . .
1
1 + + -
-
- - + + IV B.106 . . . Group I, nil.
2 + + - - - - + + IV
Do. . . .
" I I ,
n i l
.
1
1
2 tubes of 10 cc. . . .
3
+ + - - -
+
IV
Do. . . .
" I I I ,
n i l.
3 " 5 c c . . . .
1
2
4 + + - - - - + + IV
Do. . . .
" I V , 1 0 .
3 " 1 cc. . . .
. . .
3
5 + + - - - - + + IV
Do. . . .
3" .1 cc. . . .
. . .
3
6 + + - - - - + + IV
Do. . . .
3 "
• 01 cc. . . .
. . .
3
7 + +
- - - - + + IV
Do. . . .
Fœcal bacilli in 30 cc. and upwards.
+ + - - - - + + IV
Do. . . .
Class I, nil.
9 + + - - - - + + IV
Do. . . .
" I I , 1 0 .
No vibrios in 100 cc.
10 + + - - - - + + IV
Do. . . .
" I I I ,
n i l
.
SAMPLE II.—FIRST TAP AFTER FILTER BEDS.
1. + -
- - - -
+ + I B. Grunthal . . . Group I, 10.
Total colonies per cc. on agar at 37° C.—60.
2 + -
- - - - + + I
Do. . . .
" I I ,
n i l
.
3 + -
- - - - + + I
Do. . . .
" III, nil.
' 4 + -
- - - - + + I
Do. . . .
" I V ,n
i l
.
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. . . .
" I I ,
n i l
.
2 tubes of 10 cc. . . .
1
1
10 + -
- - - - + + I
Do. . . .
" I I I , 1 0 .
3 " 5 cc. . . .
2
1
3 " 1 cc. . . .
1
2
3 " .1 cc. . . .
. . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE I1I.—TAP IN SAIDAPET.
1 + + - - - - + + IV B. 106 . . .
Group I, nil.
Total colonies per cc. on agar at 37° C.—90.
2 + + - - - - + - IV B. Coscoroba . . .
" II,n i l
.
3 + + - - - - - + - IV
Do. . . .
" I I I , 3 .
Bile salt lactose, medium.
+
-
4 + + + - - - + + III B. 71 . . .
" IV, 7.
5 + + - - - - + + IV B. 106. . . .
6 + + - - - - + + IV
D o . . . .
1 tube of 20 cc. . . .
1
. . .
7 + + + - - - + + III B. 71. . .
8 + + - - - - + - IV B. Coscoroba . . .
Class I, nil.
2 tubes of 10 cc. . . .
. . .
2
9 + + - - - - + - IV
Do. . . .
" I I , 1 0 .
3 " 5 . c c . . . .
1
2
10 + + + - - - + + III B. 71 . . .
" III, nil.
3 " 1 c c . . . .
. . .
3
3 " .1 cc. . . .
. . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in 20 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP NEAR CANTONMENT RAILWAY STATION
COMPOUND.
1
+ +
-
-
-
-
+
+
I V B. 106 . . .
Group I, nil.
Total colonies per cc. on agar at 37° C.—110.
2 + + - - - - + - IV B. Coscoroba . . .
" II, nil.
3 + +
- - - - + +
I V B. 106 . . .
" III, 1.
Bile salt lactose, medium.
+
-
4 + +
- -
-
- + + IV
Do. . . .
" IV, 9.
5 + + + - - - +
-
I I I B. Neapolitanus. . . .
6 + + - - - - + + IV B. 106 . . .
1 tube of 20 cc. . . .
1
. . .
7 + + - - - - + - IV B. Coscoroba . . .
8 + + - - - - + + IV B. 106 . . .
Class I, nil .
9 + +
- - -
- + + IV
Do. . . .
" I I , 1 0 .
2 tubes of 10 cc. . . .
2
. . .
10 + +
- -
- + + IV
Do. . . .
" I I I ,
n i l
.
3 " 5 c c . . . .
2
1
3 " 1 c c . . . .
1
2
3 " . 1 c c . . . .
3
. . .
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.