132
CONJEEVERAM.
SAMPLES TAKEN—3RD AUGUST 1909.
REMARKS.—There has been 4.41 inches of rain since last report. The river bed of the Vagavati is now dry.
Bacteriological Analyses.
SAMPLE I.—UNFILTERED WATER FROM SPRING IN THE BED OF THE
RIVER
V E R V A G A V A T I .
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 .
Dulcite.
A d o n i t e .
I n u l i n .
V o g e s a n d P r o s k .
Indol.
M o t i l i t y .
Group.
Bacillus.
Group and
remarks.
—
(a ) Total colonies per cc. on agar at 37°—4,410.
+
(b) Bile salt lactose, medium.
_
1 tube 20 cc. of water taken ..
..
1
. .
1 +
+ — + — + — — IV B. Lactis ærogenes. Group I,n i l .
2 tubes 10 cc. "
2
..
2 + + — + — + — + IV 102 ...
....
" I I ,n
i l .
3 „ 5 cc. ,,
. . ... 2
1
3 + + — + — + — + IV 102 ..
..
„ III, n i l .
3 „ 1 cc. "
1
2
4 + + — + — + — + IV 102 ..
.. ..
" IV, 10.
3 „ .1 cc. . .
. .
3
5 + +
—
+ - +
—
+ IV 102 ..
.. ...
3 „ .01 cc.
..
..
3
6 + ++
—
+ — + - + IV B. Lactis ærogenes. Class I, n i l .
..
3 7 + +
—
++
—
+
—
+ IV 102 ...
..
.. „ II, 10.
(c) Fœcal bacilli in 5 cc. and upwards.
8 + + — + — + — — IV B. Lactis ærogenes.
" III, nil.
9 + ++
—
+
—
+ — + IV 102
(d) No vibrios in 100 cc.
10 + ++
—
+ — + — + IV 102 ..
..
(e) Glucose fermenters in .1 cc.
SAMPLE II.—SUCTION WELL—FILTERED WATER.
(a) Total colonies per cc. on agar at 37°—1,520. c +
—
1 + + — — — + — + IV B. Cloacæ..
.. Group I, n i l .
(b) Bile salt lactose, medium.
2 + + + — — + — + III 73 ..
..
..
„ II, n i l .
3 + + + — — + — + III 73 . . . . . . .
" I I I , 9 .
1 tube 20 cc. of water taken
..
1
..
4 + + + — — + — + III 73 ..
..
„ IV, 1
.
2 tubes 10 cc. " ..
1
1
5 + + + — — + — +
I I I 73 ..
..
..
3 " 5 cc. ,,
..
..
1
2
6 + + + — — + — + III 73 ..
..
.. Class I, n i l .
3 „ 1 cc. " ..
..
3
7 + + +
— —
+
— —
III
" I I , 5 .
3 „ .1 cc. "
. . . . ..
3
8 + +
+
— —
+ — — III
,, III, 1.
3 „ .01 cc. ,,
. . . . .
3
9 + + +
— —
+
— —
III
Undetermined 4.
10 + + +
— —
+
—
- III
(c ) Fœcal bacilli in 10 cc. and upwards.
(d) No vibrios in 100 cc.
(e ) Glucose fermenters in .1 cc.
SAMPLE III.—A TAP IN WESTERN CORNER 2½ MILES FROM HEAD-
WORKS, ADJOINING THE RESERVOIR.
(a ) Total colonies per cc. on agar at 37°—9,710
+ _
1 + + — + — + — + IV B. 102
..
.. Group I, n i l .
2 + + _+ _ + _ _ IV B. Lactis ærogenes.
" II, nil.
(b) Bile salt lactose, medium.
3 + + — + — + _ _ IV B.
Do.
„ III, nil.
4 + + — + — + — + IV B. 102
..
..
„ IV, 10.
1 tube 20 cc. of water taken ..
..
1
..
5 + + — + — + — + IV B. 102
..
..
2 t u b e s 1 0 c c . "
2
..
6 + + — + — + — + IV B. 102
..
Clasa I, n i l .
3 „ 5 cc. " . . .
.
2
1
7 + + — + _ + — — IV B. Lactis ærogenes,
" II, 10.
3 „ 1 cc. "
..
1
2
8 + + — + — + — — IV
Do.
" III, nil.
3 „ .1 cc. ,,
..
..
. .
3
9 + + — + — + — + IV B. 102
..
.. Undetermined, n i l
3 „ .01 cc. " .. ..
. .
3 10 + + — + — + — — IV B. Lactis ærogenes.
(c) Fœcal bacilli in 5 cc. and upwards.
(d) No vibrios in 100 cc.
(e ) Glucose fermenters in 1 cc.
SAMPLE IV.—EASTERN CORNER NEAR SEEVERAM TOLL-GATE.
(a ) Total colonies per cc. on agar at 37°—9,680.
+
—
1 + ++ _ _ - + — + IV B. Cloacæ
.. Group 1,n i l
.
(b) Bile salt lactose, medium.
2 + + _ + — + — + IV 102 ..
.
" I I , n i l .
3 + + — — — + — + IV B. Cloacæ
,, III, n i l .
1 tube 20 cc. of water taken ..
..
1
..
4 + + — — — + — + IV
Do.
" IV, 10.
2 tubes 10 cc. " .. .. 2
..
5 + + — + _ + — + IV 102 ..
3 „ 5 cc. "
. .
3
6 + + — _ — + — + IV B. Cloacæ
.. Class I, n i l .
3 „ 1 cc. .. ..
..
3
7 + + — — — + — + IV
Do.
" I I , 2 .
3 „ .1 cc. "
.. ..
3
8 + + _ — — + — + IV
Do.
..
..
„ III, 7.
3 „ .01 cc. "
.. .. ..
3
9 + + —
_ — + — + IV
Do.
..
.. U n d e t e r m i n e d , 1 .
10 + + _ _ — + _ — IV
( c) Fœcal bacilli in 10 cc. and upwards.
(d) No vibrios in 100 cc.
(e ) Glucose fermenters in 1 cc.