70
MADRAS.
WATER SAMPLES TAKEN—5TH & 6TH OCTOBER 1911.
REMARKS.—Maclean's Channel was dry when samples were taken. There was a small flow of water from the Sholavaram channel
to the Red Hills. The supply is constant. There has been about 10.19 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—FROM THE BOTTOM OF THE RED HILLS LAKE.
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.—250.
Bile salt lactose, medium.
+
-
1 + + + + - -
-
- III B. Pneumoniæ
. . . Group I, nil.
1 tube of 20 cc.
...
...
...
...
1
. . .
2 + + + + - - - - III
Do.
. . .
„ II, n i l .
2 tubes of 10 cc.
...
...
...
2
. . .
3 + + + + - - - - III
Do.
...
„ III; 10.
3
„
5 cc.
...
...
...
...
1
2
4 + + + + - - - - III
Do.
IV, nil.
3 „ 1 c c
. . .
. . .
. . .
3
5
+ + + + - - - - III
Do.
3
„
1cc
...
...
...
...
. . .
3
6 + + + + - - - - III
Do.
3
„
.01 cc.
...
...
...
...
. . .
3
7 + + + + - - - - III
Do.
8 + + + + - - - - III
Do.
... Class
I, nil.
Fœcal bacilli in 10 cc. and upwards.
9 + + + + - - - - III
Do.
. . .
„ I I , 1 0 .
10 + + + + - - - - III
Do.
. . .
„ III, nil.
Novibrios in 100 cc
.
S A MP L E I I . — F R O M T H ES UR F ACE O F T H E R E DH I LLS LAKE
No lactose fermenters.
Total colonies per cc. on agar at 37° C.—280.
Bile salt lactose, medium.
+
-
1 tube of 20 cc...
...
1
2 tubes of 10 cc.
.
...
...
...
. . .
2
3 „ 5 cc.
...
...
...
...
. . .
3
3 „ 1 cc.
... ...
3
3 „ .
1 cc.
...
...
...
...
. . .
3
3 „ 01 cc.
...
...
...
.
. . .
3
F œ c a lb
a c i l l i n o t p r e s e n t i n
6 0 c c .
No vibrios in 100 cc.
SAMPLE III.—SHOLAVARAM CHANNEL (SUPPLY CHANNEL TO
RED HILLS).
1 + - - +
-
-
+
- I B. Acidi lactici
. . . Group I, 9.
2 + + - + - - - - IV B. Gasoformans
. . .
„
II, nil.
Total colonies per cc. on agar at 37° C.—4,300.
3 + - - + - - + - I B. Acidi lactici
. . .
„ III, nil.
4 + - - + - - + - I
Do.
. . .
„ IV, 1.
Bile salt lactose, medium.
+
-
5 + - - + - - + - I
Do.
6 + - - +
- - + - I
Do.
1 tube of 20 cc.
...
...
1
. . .
7 + - - + - - +
- I
Do
2 tubes of 10 cc.
...
. . .
2
. . .
8 + - - + - - + - I
Do.
... Class I, nil .
9 + - - + - - + - I
Do.
. . .
„ II, 10.
3 „ 5 cc.
. . .
...
3
. . .
3 „ 1 cc.
. . .
...
1
2
10 + - - + - - + - I
Do.
...
„ III, nil.
3 „ .
1 c c .
. . .
. . .
. . .
. . .
2
1
3 „ .01 cc.
...
... ...
. . .
3
Fœcal bacilli in 5 cC. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—-TAP IN MALAYAPERUMAL STREET IN GEORGE-
TOWN.
1 + +
- - - - + + IV B. 106
...
... Group I, 3.
2 + +
- - - - + + IV
Do.
. . .
...
„ I I ,
nil.
Total colonies per cc . on agar at 37° C.—1,620.
3 + +
- - - - + + IV
Do.
. . .
...
„
I I I ,
n i l .
4 + -
- - - - + + I B. Grunthal
„ 1V, 7.
Bile salt lactose, medium.
+
-
5 + -
- - - - + + I
Do.
6
+ -
- - - - + + I
Do.
7
+ +
- - - -
+ + IV B.106.
1 tube of 2 0 c c .
...
...
. . .
. . .
1
. . .
8 + +
- - - - + + IV
Do.
...
... Class I, nil,
9 +
+
- - - - + + IV
Do.
...
...
„ II, 7.
2 tubes of 10 cc....
...
2
. . . 10 + +
- - - - + + IV
Do.
...
...
„ III, 3.
3
„
5 c c .
. . .
. . .
. . .
. . .
2
1
3 „
1cc.
...
...
...
...
1
2
3 „ .1 cc.
...
...
. . .
...
. . .
3
3 „ .01 cc.
...
...
...
. . .
. . .
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.