138
TRICHINOPOLY.
WATER SAMPLES TAKEN—14TH OCTOBER 1912.
Remarks. —The River Cauvery was in high floods when samples were taken. The supply is
constant. There has been about 8.23 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—FROM THE RIVER-BED OF TEE CAUVERY.
Total colonies per cc. on agar at 37° C.—Cannot be counted.
Number . Lact os e.
S a c c h a r o s e .
Dul ci t o. Adoni 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 . Group.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
1
...
1 + + - - - - + - IV B. Coscoroba.
2 t u b e s o f 1 0 c c . . . . . . . . . . . . .
2
...
2 + + - - - - + + IV B. Cloacæ...
... I Group I, 2.
3 " 5 cc.
3
...
3 + - - - - - + -
I B. Vesiculosus
...
"
II, nil.
3 " 5 cc. ... ... ...
...
3
...
4 + + - - - + - + IV B. Cloacæ
" III, nil.
3 " 1 cc.
3
...
5 + + - - - + - + IV
Do.
...
...
"
IV , 8.
3
" .01 cc.
...
...
...
...
3
...
6 + + - - - + - + IV
Do.
8 + + - - - + - + IV
Do.
... Class I, nil.
Fœcal bacilli in .01 cc. and upwards.
No vibrios 100 cc.
7 + + - - - + - + IV
Do.
9 + - - - - - + - I
B. Vesiculosus
" II, 2.
10 + +
- - - - + - IV B. Coscoroba
" III, 8.
SAMPLE II.—FIRST TAP IN HEADWORKS OF THE INFILTRATION
GALLERY.
Total colonies per cc. on agar at 37° C.—1,530.
1 + + + +
- + - - III B. 97.
2 + + - + - + - - IV B. Lactis ærogenes
Group I, 5.
3 + - - - - - + -
I B3. Vesiculosus
" II,
nil.
4 + - - - - - + -
I
Do.
" III, 1,
Bile salt lactose, medium.
+
-
5 + - - - - - + -
I
Do.
...
" IV, 4..
6 + - - - - - + -
I
Do.
1 tube of 20 cc
1
...
7 + + - - - - + - IV B. Coscoroba.
2 tubes of 10 cc.
...
...
...
...
2
...
8 + - - - - - + -
I
B. Vesiculosus
... Class I, nil.
3 " 5 cc.
3
...
9 + + - - - - + - IV B. Coscoroba
" II, 5 .
3 „ 5 cc.
3
...
10 + + - - - - + - IV
Do.
...
„ III, 5.
3
"
•1 cc.
...
...
3
3
"
.01 cc.
...
...
...
... ...
3
Fœcal bacilli in 1 cc, and upwards.
No vibrios in 100 cc.
SAMPLE III.—FIRsT TAP AFTER SERVICE RESERVOIR.
Total colonies per cc. on agar at 3 7 ° C.—860.
1 + - - - - - + -
I B. Vesiculcsus.
2 + + - + - + - - IV B. Lactis ærogenes... Group I, 8.
3 + - - - - - + -
I
B. Vcsiculosus
...
"
II, nil.
Bile salt lactose, medium.
+
-
4 + - - - - - + -
I
Do.
...
...
" III, nil.
5 + - - - - - + -
I
Do. ...
Do.
" IV, 2.
1 tube of 20 cc.
...
...
...
...
1
...
6 + - - - - - + -
I Do.
7 + - - - - - + - I
Do.
2 tubes of. 10 cc.
...
...
...
...
2
...
8 + + - - - - + -
I
Do.
...
... Class I, nil.
9 + + - + - + - - IV
I
B. Lactis ærogenes .. "
II, 2.
3
„
5 cc.
...
...
...
3 ...
3
" 1 cc.
1
2
10 + - - - - - + - I
B. Ve s i c u l o s u s " III, 8.
3 " . 1 cc.
...
3
3
.01 cc.
...
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP NEAR CANTONMENT RAILWAY STATION.
Total colonies per cc. on agar at 37° C.—2,436.
1 + + - - - - + - IV B. Coscoroba.
2 + - - - -
- - + -
I
B. Vesiculosus
... Group I, 4.
3 + + - - - - + - IV B. Coscoroba
" II, nil.
Bile salt lactose, medium.
+
-
4 + + - - - - + - IV
Do.
...
...
„ III, 1.
5 + + + - - - + - III B. Neapolitanus
„ IV, 5.
6 + - - - - - + -
I
B. Vesiculosus.
1 tube of 20 cc.
...
...
1
...
7 + + - - - - + - IV B. Coscoroba.
2 tubes of 10 cc.
2
...
8 + - - - - - + - I B. Vesiculosus
... Class I, nil.
3
,.
5 cc.
...
...
...
...
3
...
9 + + - - - - + - IV B. Coscoroba
" II, 6.
3
1 cc.
3
...
10 + - - - - - + -
I
B. Vesiculosus
...
„ 111, 4,
3 " .1 cc.
...
3
3
"
.01 cc.
...
3
Fœtal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.