176
CONJEEVERAM.
SAMPLES TAKEN-17TH OCTOBER 1909.
REMARKS.—There has been 31.7 inches of rain since last analysis.
The river bed of Vagavati is now dry. Neither the river bed nor the banks are conserved above the gallery.
Bacteriological Analyses.
SAMPLE I.—UNFILTERED WATER FROM SPRING IN THE BED OF THE
RIVER VAGAVATI.
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 .
Dul ci t e.
A d o n i t e . I nul i ne . V o g a s a n d P r o s k . I ndol .
M o t i l i t y .
Gr o u p .
Bacillus.
Group and
remarks.
(a) Total colonies per cc. on agar at 37°—330.
+
-
(b) Bile salt lactose, medium.
1 tube 20 cc. of water taken
..
..
1
. . 1 + + + + - + - - III B. 67 ..
..
. . Group I, 2.
2 tubes 10 cc.
..
2
..
2 + + - - - - + - IV B. Coscoroba
.. „ II, ni l .
3 ,,
.5 cc. ,, .. ..
3
. . 3 + + + + - + - - III B. 67 ..
..
.. ,, III, 6
3 ,,
1 cc.
„
..
..
3
. . 4 + + + + - - + - III B. 66 ..
..
.. ;,IV, 2.
3 ,,
.1 cc. ,, ..
. .
3
5 + + + + - + - - Ill B.67 ..
..
3 , ,
. 1 c c .
, ,
. .
. .
. .
3
6 + + + + - - - - III B. Pneumoniæ
..
7 + + - - - - + - IV B. Coscoroba
. . Class I, ni l .
(c) Fœcal bacilli in 1 cc. and upwards.
8 + + + + - + - - III B. 67 ..
..
.. „ II, 8.
9 +- - - - - - - I B. Mutabilis ..
..
(mixture).
10 + - - - - - - - I
Do. ..
.. „ III, 2.
SAMPLE II—SUCTION WELL (FILTERED WATER).
(a) Total colonies per cc. on agar at 37°—220.
1 + - - - - - + - I B. Vesiculosus
.. Group I,10.
+
-
2 + - - - - - + - I
Do.
. . „ II, ni l .
(b) Bile salt lactose, medium.
3 + - - - - - + - I
Do.
.. „ III, nil.
4 + - - - - - + - I
Do.
.. „ IV, nil.
1 tube 20 cc, of water taken
..
..
1
.
5 + - - - - - + - I
Do.
. .
2 tubes 10 cc.
,, .. ..
1
1
6 + - - - - - + - I
Do.
. .
3 ,, 5 cc.
,, ..
. .
3
7 + - - - - - + - I
Do.
. . Class I, nil.
3 „ 1 cc.
,, .. ..
. .
3
8 + - - - - - + - I
D o .
. .
„ II, nil.
3 ,, .1cc.
,,
..
..
. .
3
9 + - - - - - + - I
Do.
.. „ III, 10.
3 „.01 cc.
,, .. ..
..
3 10 + - - - - - + - I
Do.
. .
(c) Fœcal bacilli in 10 cc. and upwards.
SAMPLE .III.—A TAP IN WESTERN CORNER 2½ MILES FROM HEAD-
WORKS—ADJOINING THE RESERVOIR.
(a) Total colonies per cc. on agar at 37°—1,600.
1 + + - + - + - - IV B. Lactis ærogenes .. Group I, nil.
+
- 2 + + - + - + - - IV
Do.
. .
,, II, nil.
(b) Bile salt lactose, medium.
3 + +
- + - + - - I V
Do.
. . ,, III, nil.
4 + + - + - - - - IV B. Gasoformans .. ,, IV, 10.
1 tube 20 cc. of water taken
..
. .
1
. . 5 + + - + - + - - IV B. Lactis ærogenes ..
2 tubes 10 cc.
. .
. .
1
1
6 + + - + - + - - IV
Do.
. .
3 „ 5 cc.
,, . .
1
2
7 + + - + - - - - IV B. Gasoformans .. Class I, nil.
3 ,, 1 cc.
, ,
. .
. .
. .
3
8 + + - + - - - - IV
Do.
..
, , I I 1 0 .
3 ,, .1 cc.
, ,
. .
. .
. .
3
9 + + - + - - - - IV
Do.
.. ,, III, nil.
3„ .01 cc.
,, .. ..
. .
3 10 + + - + - - - - IV
Do.
..
(c) Fœcal bacilli in 10 cc. and upwards.
SAMPLE IV.—EASTERN CORNER NEAR SEEVARAM TOLL-GATE.
(a) Total colonies per cc. on agar at 37°—1,040
1 + + + + - - - - III B. Pneumoniæ
.. Group I, n i l .
+
-
2 + + + + - + - - IV B. 67
..
.. ,, II, nil.
(b) Bile salt lactose, medium.
3 + + + + - + - - III B. 67 ..
..
.. ,, III, 9.
4 + + + + - + - - III B. 67 ..
..
.. ,, IV,1.
1 tube 20 cc. of water taken
..
..
1
..
5 + + + + - ± - - IV B. Lactis ærogenes
..
2 tubes 10 cc.
, ,
. .
. .
. .
2
6 + + + + - + - - III B. 67 ..
3 „ 5 cc.
,,
..
..
1
2
7 + + + + - + - - III B. 67 ..
..
.. Class1, nil.
3 ,, 1 cc , ,
. . . .
3
8 + + + + - + - - III B. 67 ..
..
..
, , I I , 1 0
3 „ .1 cc.
, ,
. . . .
3
9 + + + + - - - - III B. Pneumoniæ
.. ,, III, nil.
3„ .01 cc.
, ,
. .
. . ..
3 10 + + + + - + - - I I I B. 67
..
..
(c) Fœcal bacilli in 20 cc. and upwards.