12
TRICHINOPOLY.
WATER SAMPLES TAKEN-6TH FEBRUARY 1912.
REMARKS.—There was a very small flow of water in the River Cauvery when samples were
taken. The supply is constant. There has been about 17.93 inches of rain
since last analysis.
Bacteriological Analyses.
SAMPLE I.—FROM THE RIVER BED OF THE CAUVERY .
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 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.— 370.
Bile salt lactose, medium.
+
—
1 tube of 20 cc. . . .
1
. . .
I +
-
- -
- - + —
I B. Vesiculosus.
2
2 tubes of 10 cc. . . .
. . .
2
+ -
- -
- - + —
I
Do. . . .
Group I, 9
2
1
3 " 5 cc. . . .
3
+ -
- -
- - + - I
Do. . . .
" I I ,
n i l .
3
3 " 1 cc. . . .
. . .
4
+ +
- +
- +
- - TV B. Lactis ærogenes.
"
III, nil.
1
3 " .1cc. . . .
2
5
+ -
- -
- - + - I B. Vesiculosus . . .
"
IV , 1.
3 " •01 cc. . . .
. . .
6
+ -
- -
- - +
- I
Do.
Fœcal bacilli in 1 cc. and upwards.
7
+ -
-
- - + -
I
Do.
8 + -
- -
- - + - I
Do. . . .
Class I, nil.
No vibrios in 100 cc.
9 + -
- -
- - + - I
Do. . . .
" I I , 1 .
10
+
-
- -
- - + - I
Do. . . .
" III, 9.
SAMPLE II.—FROM TAP IN HEAD WORKS OF THE INFILTRATION.
GALLERY.
1
+ +
-
+
-
+ - - TV B. Lactis ærogenes.
Total colonies per cc. on agar at 37°C.—Countless.
2 + +
- + -
+ - - IV
Do. . . .
Group I, nil.
3 + +
- +
- + - - IV
Do. . . .
" II, nil.
Bile salt lactose, medium.
+
—
4 + +
- +
- + - - IV
Do. . . .
" III, nil.
5 + +
- +
- + - - IV
Do. . . .
" IV, 10.
6 + +
- +
- +
- - IV
Do. . . .
1 tube of 20 cc. . . .
1
. . .
7 + +
- +
- + - - IV
Do. . . .
8 + +
- +
- + - - IV
Do. . . .
Class
I, nil .
2 tubes of 10 cc. . . .
9 + +
- +
- + - - IV
Do. . . .
II, 10.
1
1
3 " 5 c c . . . .
1
2
10 + + - +
- + - - IV
D o . . . .
III, nil.
3 " 1
cc. . . .
. . .
3
3 " 1 c c . . . .
. . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
AMPLE III.—FIRST TAP AFTER SERVICE RESERVOIR.
1
+
-
- - -
-
+
- I B. Vesiculosus.
Total colonies per cc. on agar at 37°C.—2,050.
2
+ - - - -
- +
- I
Do. . . .
Group I, 10.
3
+ - - - -
- +
- I
Do. . . .
" II, nil.
Bile salt lactose, medium.
+
-
4 + - - - -
- +
- I
Do. . . .
" I I I ,
n i l .
5
+ - - - -
- +
- I
Do. . . .
" IV, nil.
6
+ - - - -
- +
- I
Do.
1 tube of 20 cc.
1
. . .
7
+ - - - -
- + - I
Do.
8
+ - - - -
- +
- I
Do. . . .
Class I, nil.
2 tubes of 10 cc.
1
1
9 + - - - -
- +
- I
Do. . . .
" I I ,
n i l .
1 0 + - - - -
- +
- I
Do. . . .
" I I I , 1 0 .
1
2
3 " 5 cc. . . .
3 " 1 cc. . . .
. . .
3
3 " .
1 cc. . . .
. . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE I V.—TAP NEAR RAILWAY STATION.
1
+ +
- +
- +
- - IV B. Lactis ærogenes.
2
+ +
+ +
- +
- - III B. 67 . . .
Group I, 1.
Total colonies per cc. on agar at 37°C.–1,390.
3
+ +
- +
- +
- - IV B. Lactis ærogenes . . .
" II, nil.
4
+ +
- +
- +
- - IV
Do. . . .
" III, 3.
Bile salt lactose, medium.
+
-
5
+ +
- +
- +
- - IV
Do. . . .
" I V , 6 .
6 + +
- +
- +
- - IV
Do.
7
+ -
- - - - - - I B. Mutabilis.
8 + + + +
- +
- - III B. 67 . . .
Class I, nil.
1 tube of 20 cc. . . .
1
. . .
9 + + - +
- +
- - 1V B. Lactis ærogenes.
" II, 9.
10
+ +
+ + - + - - III B. 67 . . .
" I I I , 1 .
2 tubes of 10 cc. . . .
2
. . .
3 " 5 cc. . . .
3
. . .
3 " 1 cc. . . .
3
. . .
3 " .1 cc. . . .
. . .
3
3 .01 oc. . . .
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.