35
VIZAGAPATAM.
WATER SAMPLES TAKEN ― 19TH & 20TH MARCH 1912.
REMARKS.― The town supply is constant. There was no rain since last analysis. The level
of water in tank was about 4.20 feet.
Bacteriological Analyses .
SAMPLE I.― TANK OR RESERVOIR.
N u m b e r . Lact ose.
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 nul i ne .
Vo g e s a n d Pr o s k .
I n d o l .
M o t i l i t y .
G r o u p .
Name of Bacilli.
G r o u p a n d R e m a r k s .
Total colonies per cc. on agar at 37° C. ― 526.
Bile salt lactose, medium.
+
-
1 tube of 20 cc. . . .
1
. . .
1 + +
- +
-
-
- - IV B. Gasoformans.
2 tubes of 10 cc. . . .
2
. . .
3 " 5 cc. . . .
3
. . .
2 + +
- + - +
- - IV B. Lactis ærogenes . . . Group I, nil.
3 " 1 cc. . . .
3
. . .
3 + +
- + - -
- - IV B. Gasoformans . . .
" II, nil.
3 " .1 cc. . . .
2
1
4 + + - + - -
- - IV
Do. . . .
" III, 1.
3 " .01 cc. . . .
1
2
5 + + - +- + - - IV B. Lactis ærogenes.
" IV, 9.
Fœcal bacilli in .1 cc. and upwards.
6 + +
- + - +
- - IV
Do.
7 + + - + - + - -
I V
Do.
8 + + - + - +
- - IV
Do. . . . Class I, nil.
No vibrios in 100 cc.
9 + +
+ + - +
- - III B. 67 . . .
" II, 10.
10 + +
- + - -
-
- IV B. Gasoformans . . .
" III, nil.
SAMPLE II.― FIRST TAP AFTER FILTRATION.
1
+
+
- -
-
+
-
+ IV B. Cloacæ.
Total colonies per cc. on agar at 37° C.― 1,260.
2 + +
- + - -
- - IV B. Gasoformans . . . Group I, nil .
3 + +
- + - -
- - IV
D o . . . .
" II, nil.
4 + + - + - -
- - IV
D o . . . .
" III, nil.
Bile salt lactose, medium.
+
-
5 + +
- + - -
- - IV
D o . . . .
" IV, 10.
6
+ +
- + - -
- - IV
Do.
7 + +
- + - -
- - IV
Do.
1 tube of 20 cc. . . .
1
. . .
8
+ +
- + - -
- - IV
Do. . . . Class I, nil .
9
+ +
- + - -
- - IV
Do. . . .
" II, 9.
2 tubes of 10 cc. . . .
2
. . .
10
+ +
- + - -
- - IV
Do. . . .
" III, 1.
3 " 5 c c . . . .
3
. . .
3 " 1 cc. . . .
3
. . .
3 " .1 cc. . . .
3
. . .
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
S A M P L E I I I . ― T A P N E A R B E A C H .
1
+ +
- + - + - -
IV B. Lactis ærogenes.
Total colonies per cc. on agar at 37° C.― 350.
2
+ +
- + - + - - IV
Do. . . . Group I, nil .
3
+ +
- + - + - - IV
D o . . . .
" I I ,
n i l .
Bile salt lactose, medium.
+
-
4
+ +
- + - + - - 1V
D o . . . .
" III, nil.
5 + +
- + - + - -
I V
Do. . . .
" IV, 10.
6 + +
- +
- + - - IV
Do.
7 + + - + -
- - - IV B. Gasoformans.
8 + +
- + - - - - IV
Do. . . . Class I, nil.
1 tube of 20 cc. . . .
1
. . .
9
+ +
- + - - - - IV
Do. . . .
" II, 10.
2 tubes of 10 cc. . . .
2
. . . 10 + +
- +
- - - - IV
Do. . . .
" III, nil.
3 " 5 cc. . . .
3
. . .
3 " 1 cc. . . .
2
1
3 " .1cc. . . .
. . .
3
3 " .01 cc. . . .
. . .
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.― TAP NEAR RAILWAY STATION.
1 +
+
- +
-
-
-
- IV B. Gasoformans.
Total colonies per cc. on agar at 37° C.―590.
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.
1 tube of 20 cc . . . .
1
. . .
6 + +
- + - -
- - IV
Do.
7 + + - + - -
-
- IV
Do.
2 tubes of 10 cc. . . .
2
. . .
8 + +
- + - -
- - IV
Do.
Class I, nil.
3 " 5 cc. . . .
3
. . .
9
+ +
- + - +
- + IV B. 102. . .
" II, 10.
3 " 1 cc. . . .
2
1
10 + +
- + - + - + IV
D o . . . .
" I I I ,
n i l
3 " .1 cc. . . .
1
2
3 " .01 cc. . . .
. . .
3
F œ c a l b a c i l l i i n 1 c c . a n d u p w a r d s .
No vibrios in 100 cc.