93
TRICHINOPOLY.
WATER SAMPLES TAKEN—22ND JULY 1912.
Remarks.—The River Cauvery was in floods when samples were taken. The supply is constant.
There has been about 11.98 inches of rain since last analysis.
Bacteriological Analysis.
SAMPLE I.—FROM THE RIVER-BED OF THE CAUVERY.
Total colonies per cc. on agar at 37' C.—Cannot be counted.
Co l o n y Nu mb e r .
Lact ose. S a c c h a r o s e . Dul ci t e.
Adonite.
I nul i n.
V o g e s a n d P r o s k .
I ndol .
Mot i l i t y.
Gr oup.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
...
1
... 1 + + - + -
+ - -
IV B. Lactis ærogenes. Group I, 8.
2 tubes of 10 cc. ...
...
...
...
2
...
2 + - - - - - + -
I
B. Vesiculosus
...
„
II, nil.
3 „
5 cc. ...
...
...
...
3
3 + - - - - - - -
I B. Mutabilis
...
,,
III, nil.
3 „ 1 cc. ... ...
3
. . .
4 + - - - - - - -
I
Do.
...
„
IV, 2,
3
„
2
1
5 + + - + - + - - IV B. Lactis ærogenes.
3 „ .01 cc.
.
..
..
. . .
3
6 + - - - - - - -
I B. Mutabilis.
7 + - - - - - - -
I
Do.
Fœcal bacilli in .1 cc. and apwards.
No vibrios in 100 cc.
8 + - - - - - - -
I
Do.
... Class I, nil.
9 + - - - - - - -
I
Do.
„ II, 2.
10 + - - - - - - -
I
Do.
....
„ III, 8
SAMPLE II.— FROM A TAP IN HEAD-WORKS OF THE INFILTRATION
GALLERY.
Total colonies per cc. on agar at 37° C.—8,700.
1 + + - + - + - - IV
B. Lactis ærogenes. Group I, nil.
2 + + - + - + - - IV
Do.
„
II, nil.
3 + + - + - + - - IV
Do.
„ III, nil.
4 + + - + - + - - IV
Do.
„ IV, 10.
Bile salt lactose, medium.
+
- 5 + + - + - + - - IV
D o .
6 + + - + - + - - IV
Do.
7 + + - + - + - - IV
Do.
1 tube of 20 cc. ...
. . . •••
...
1
. . .
8 + + - + - + - - IV
Do.
Class I, nil.
2 tubes of 10 cc. ...
...
...
...
2
. . .
9 + + - + - + - - IV
Do.
„
II, 10.
3 „ 5 c c .
3
. . .
10 + + - + - + - - IV
Do.
„
III, nil.
3
„
1 cc. ...
...
...
..
3
3 „ . 1 c c .
...
3
3 „ .01 cc. ... ... ... ...
... 3
Fœtal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FIRST TAP AFTER SERVICE RESERVOIR.
Total colonies per cc. on agar at 37° C.—Countless (45,400).
1 + + + + - + - - III
B. 67
...
... Group I, nil .
2 + + + + - + - - III
Do....
„
II, nil.
3 + + + + - + - - III
Do.
„ III, 10.
4 + + + + - + - - III
Do.
...
...
„
IV, nil .
5 + + + + - + - - III
Do.
Bile salt lactose, medium.
+
-
6 + + + + - + - - III
Do.
7 + + + + - + - - III
Do.
8 + + + + - + - - III
Do.
...
... Class
I, nil.
I tube of 20 cc. ...
...
...
...
1
. . .
9 + + + + - + - - III
Do.
...
...
„
II, 10.
10 + + + + - + - - III
Do.
„ III, nil.
2 tubes of 10 cc. ...
...
...
...
1
1
3 „ 5 CC.
3
. . .
3 „ 1 CC.
1
2
3 „ .I cc. .. ... ...
1
2
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°.—Countless.
1 + + - + - + - - IV
B. Lactis æerogenes. Group I, 1.
2 + + + + - + - - III
B. 67
„ II, nil.
3
+ + - + - + - - IV
B. Lactis ærogenes.
„
III, 3.
4 + + - + - + - - IV
Do.
...
„ IV, 6.
„
Bile salt lactose, medium.
+
-
5 + + - - - - + - IV
B. Coscoroba.
6 + - - - - - + -
I
B. Vesiculosus.
7 + + - - - - + - IV B. Coscoroba.
1 tube of 20 cc.
...
...
...
...
1
. . .
8 + + + + - + - - III
B. 67
...
... Class I, nil.
2 tubes of 10 cc. ...
. . . ...
2
. . .
9 + + + + - + - - III
Do.
„ II, 9,
3
5 co.
3
••• 10 + + - + - + - - IV R. Lactis ærogenes
.
„ III, 1.
3 „ 1 cc.
3
...
3 „
. 1 c c .
. . .
. . .
. . .
3
. . .
3 „ .01 cc. ... ... ... ...
3
...
Fœcal bacilli in .01 cc. and upwards.
No vibrios in 100 cc.