207
VIZAGAPATAM.
SAMPLES TAKEN-9TH DECEMBER 1909.
REMARKS.—There has been about 8 .86 inches of rain since last analysis. The town supply is constant. The level of
water in tank is about 19 feet.
Bacteriological Analyses.
SAMPLE I.—STORAGE TANK UNFILTERED WATER.
(a ) Total colonies per cc. on agar at 37°—One
large colony occupying the whole plate.
C o l o n y 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 o i t e .
A d o n i t e .
I n a l i n .
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
Bacillus.
Group and
Remarks.
–
B. Vesiculosus
Group I, 9.
+ –
- - - - +
I
(B) Bile salt lactose, medium.
+
–
1
2 + - - - - - + –
I
Do.
" „II., nil.
1 tube 20 cc. of water taken ..
..
..
1 ..
3 -I----+- - - - - + –
I
Do.
„ III, nil.
2 tubes 10 cc.
"
..
..
. .
2
. .
4 + - - - - - + –
I
Do.
„ IV, 1.
5 + - - - - - + -
I
Do.
3 "
5 cc. "
3
6
+ - - - - - + -
I
Do.
3 „
1 cc. "
2
1
7
3 „
1 cc.
"7
. .
3
+
-I-
+
I
Do.
.. Class I, nil.
8 + + - - - + - + IV
B. Cloacæ
"„ II, nil.
3 „ .01 cc.
"
..
..
. .
. .
3
+ - - - - - + -
I B Vesiculosus
..
„" III, 10.
9
+
- - - - -
+
-
I
Do.
(c) Fœcal bacilli in 1 cc. and upwards.
10
SAMPLE II.—FIRST TAP AFTER FILTRATION.
1
+
- - - - - + +
I
B. Grunthal
Group I , 9.
2 + - - - - - - -
I
B. Mutabilis
77
II, nil.
(a) Total colonies per cc. on agar at 37°—470.
(b) Bile salt lactose, medium
+
-
# + - - - - - + +
I B. Vesiculosus
„ III, nil..
4 + - - - - - + -
I
Do.
71
IV, 1.
5 + - - - - - + -
I
Do.
1 tube 20 cc. of water taken
1
..--
6 + + - - - - + - Iv B. Coscoroba.
7 + - - - - - - -
I B. Mutabilis
.. Class I, nil.
2 tubes 10 cc.
1
2
..
8 + - - - - - + -
I
B. Vesiculosus
..
„ II, 1.
3 ,," 5 cc. 11
2
1
9
3 „
1 ee. "
--
3
+ - - - - - + -
I
Do.
.", III, 9.
10
+
+
- - - - + -
I
Do.
3 „
.1 cc.
"
.
.
.--
3
3 „ .01 cc.
..
3
(c) Fœcal bacilli in 5 cc. and upwards.
SAMPLE III.—SOUTHERNMOST TAP NEAR HARBOUR.
1 +
- - - - -
+
-
I B. Vesiculosus
Group I, 8.
2 + + + - - - + - IV B. Coscoroba
..
",, 11, nil.
(a) Total colonies per cc. on agar at 37°—Countless.
(b) Bile salt lactose, medium.
+
- 3 + - - - - - + -
I B. Vesiculosus
„
III, nil.
4 + - - - - - + -
I
Do.
" IV, 2.
5 + - - - - - + -
I
Do.
1 tube 20 cc. of water taken
1
..
6 + - - - - - + -
I
Do.
2 tubes 10 cc.
"
2
. .
7 + + - - - - + - IV B. Coscoroba.
8 + - - - - - + -
I B. Vesiculosus
Class I, nil.
'
3 „
" 5 cc. "
2
1
9
3 „
1 cc.
",,
1
2
+ - - - - - + -
I
Do.
..
," II, 2.
3 "
.1 cc.
,,
..
3
10 +
I
- - - - -
+
-
I
Do.
„ III, 8.
3 „ .01 cc
11
..
..
3
(c) Fœcal bacilli in 5 cc. and upwards.
SAMPLE IV.— WESTERNMOST TAP NEAR RAILWAY STATION COMPOUND.
(a) Total colonies per cc. on agar at 37°—could
1 +
- - -
-
- +
-
I B. Vesiculosus
Group 1, 7.
2 + - - - - - + -
I
Do.
..
"„ II, nil.
not be counted.
(b) Bile salt lactose, medium.
+
- 3 + - - - - - + -
I
Do.
III, 1 .
4+ + - - - - + -
IV B. Coscoroba.
77
„
IV, 2.
5 + - - - - - + -
I B. Vesiculosus.
1 tube 20 cc. of water taken
1
. .
6 + + - - - + - IV B. Coscoroba
.
Class I, nil.
2 tubes 10
2 ..
7 + - - - - - + -
I B. Vesiculosus
..
„
II, 3.
8
3 " „ 5 cc. 71
3
. . . .
+- - - - - + -
I
D o .
III, 7.
3
1 cc.
• •
• •
2
1 9 + - - - - - + -
I
Do.
3 .1 cc. " .
..
3
10 +
+
+ + -
+
-
- III B. 67.
3 " .01 cc. "
..
3
(c)F œ c a l b a c i l l i
i n
1 c c . a n d
upwards .