NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
191
COONOOR.
WATER SAMPLES TAKEN
—2ND NOVEMBER 1910.
REMARKS.—The storage reservoir was full and overflowing. The supply is intermittent. There has been about
27·11 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—STORAGE RESERVOIR.
Number.Lact ose.Sacchar ose.Dul ci t e.Adoni t e.Inul i n. V o g e s a n d P r o s k . Indol .Motility.Group.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C
—480.
Bile salt lactose, medium.
+
–
1 tube of 20 cc.
1
1 +
– –
+
– –
+
–
I B. Acidi Lactici
Group I, 10.
2 tubes of 10 cc.
2
2
+ – –
+
– –
+
–
I
Do.
„
II,
nil.
3 „ 5 cc.
1
2
3
+
– – – – –
+
–
I B. Vesiculosus
„
III,
nil.
3 „ 1 cc.
3
4
+
– –
+
– –
+
–
I B. Acidi Lactici
„
IV,
nil.
3 „ ·1 cc.
3
5
+
– –
+
– –
+
–
I
Do.
3 „ ·01cc.
3
6
+
– –
+
– –
+
–
I
Do.
Fœcal bacilli in 10 cc. and upwards.
7
+
– –
+
– –
+
–
I
Do.
8
+
– –
+
– –
+
–
I
Do.
Class I, nil.
No vibrios in 100 cc.
9
+
– –
+
– –
+
–
I
Do.
„
II
, 9.
10
+
– –
+
– –
+
–
I
Do.
„
III,
1.
SAMPLE II.—FIRST TAP FROM SERVICE RESERVOIR.
1
+
– – – – –
+
–
I B. Vesiculosus
Group I, 10.
2
+
– – – – –
+
–
I
Do.
„
II,
nil.
Total colonies per cc. on agar at 37° C
—2,860.
3
+
– – – – –
+
–
I
Do.
„
III,
nil.
4
+
– – – – –
+
–
I
Do.
„
IV,
nil.
5
+
– – – – –
+
–
I
Do.
Bile salt lactose, medium.
+
–
6
+
– – – – –
+
–
I
Do.
7
+
– – – – –
+
–
I
Do.
8
+
– – – – –
+
–
I
Do.
Class I, nil.
1 tube of 20 cc.
1
9
+
– – – – –
+
–
I
Do.
„
II,
nil.
2 tubes of 10 cc.
2
10
+
– – – – –
+
–
I
Do.
„
III,
10.
3 „ 5 cc.
3
3 „ 1 cc.
2
1
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FOUNTAIN IN FRONT OF POST AND TELEGRAPH
OFFICE.
1
+
– –
+
– –
+
–
I B. Acidi Lactici
Group I, 5.
2
+
– –
+
– –
+
–
I
Do.
„
II,
nil.
Total colonies per cc. on agar at 37° C
—170.
3
+ +
–
+
– –
+
– IV B. 101
„
III,
nil.
Bile salt lactose, medium.
+
–
4
+
– –
+
– –
+
–
I B. Acidi Lactici
„
IV,
5.
5
+ +
–
+
– –
+
– IV B. Coscoroba.
6
+
– –
+
– –
+
–
I B. Acidi Lactici.
1 tube of 20 cc.
1
7
+
– –
+
– –
+
–
I
Do.
2 tubes of 10 cc
2
8
+ +
– – – –
+
– IV B. Coscoroba
Class I, nil.
3 „ 5 cc.
3
9
+ +
– – – –
+
– IV
Do.
„
II
, 10.
3 „ 1 cc.
1
2
10
+ +
–
+
– –
+
– IV B. 101.
„
III,
nil.
3 „ ·1 cc.
2
1
3 „ ·01 cc.
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—FOUNTAIN IN FRONT OF CHOULTRY NEAR
RAILWAY STATION.
1
+ +
– – –
–
+ +
IV B. 106
Group I, nil.
2
+ +
– – – –
+
- IV B. Coscoroba
„
II,
nil.
Total colonies per cc. on agar at 37° C
—250.
3
+ +
– – – –
+ +
IV B. 106
„
III,
nil.
Bile salt lactose, medium.
+ –
4
+ +
– – – –
+ +
IV
Do.
„
IV,
10.
5
+ +
– – – –
+ +
IV
Do.
6
+ +
– – – –
+ +
IV
Do.
1 tube of 20 cc.
1
7
+ +
– – – –
+ +
IV
Do.
2 tubes of 10 cc.
2
8
+ +
– – – –
+ +
IV
Do.
Class I, nil.
3 „ 5 cc.
3
9
+ +
– – – –
+ +
IV
Do.
„
II,
10
3 „ 1 cc.
1
2
10
+ +
– – – –
+ +
IV
Do.
„
III,
nil
.
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE I.
SAMPLE IV.
192
REPORT.
The storage reservoir is still described as full and overflowing, but on this occasion the water is much
better than when last examined. This would seem to point to the catchment area getting cleansed by the
prolonged rainfall. Whatever the cause the water is in quite a satisfactory condition. The water taken from
a tap adjoining the service reservoir shows a reversion to the old unsatisfactory state of affairs. It shows a
tenfold number of fœcal germs and a sixfold total count as compared with the water of the storage reservoir.
The samples drawn from the distributary system are better again, though that taken from the fountain in
front of the post and telegraph station shows a somewhat suspicious admixture of faecal germs. With a full
and overflowing reservoir it seems a pity that the service given is not a constant one.
Chemically the water is as usual excellent.
Chemical Analyses.
Physical appearances.
Colour and
Transparency.
Slightly yellowish
but clear.
Colourless and
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
Temporary hardness
Do.
Permanent hardness
Do.
Total hardness
Do.
Chlorine
Do.
..
..
.
Ammoniacal nitrogen
Do.
Albuminoid nitrogen
Do.
Oxygen absorbed (Tidy's Process)
Do.
Nitric nitrogen
Do.
2.000
Nil.
0.500
0.500
0.284
0.002
0.002
0.031
Nil.
2.000
Nil.
0.500
0.500
0 . 2 8 4
Trace.
0.003
0.031
Nil.
QUALITATIVE.
Nitrites
Sulphates
Phosphates
Iron, poisonous metals
Nil.
Nil.
Nil.
Nil, nil.
Nil.
Nil.
Nil.
Nil, nil.
193
DINDIGUL.
WATER SAMPLES TAKEN—9TH NOVEMBER 1910.
REMARKS.—There has been about 20.61 inches of rain since last analysis. The supply is intermittent.
Source of supply.— (i) Infiltration gallery, (ii) Deep well. Infiltration gallery was used as a source of supply when samples were
taken.
Bacteriological Analyses.
SAMPLE I.—TAP IN FRONT OF PUMPING STATION (DEEP WELL).
Total colonies per cc. on agar at 37°—110.
Nu mb e r . L a c t o s e .
S a c c h a r o s e .
Du l c i t e .
Adni t e.
I n u l i n .
V o g e s a n d P r o s k .
I ndol .
Mot i l i t y.
Gr o u p
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc. of water taken
1
. .
1 + + + - - - + - III
B. Neapolitanus
Group I, nil.
2 + + + - - - + - III
Do.
„
II, nil.
2 tubes of 10 cc.
2
. .
3
+ + + - - - + - III
Do.
" III, 10.
3
"
5 cc.
3
. .
4 + + + - - - + - III
Do.
„" IV, nil.
3
"
1 cc.
2 1
5 + + + - - - + - III
Do.
3 " .1 cc. "
2
1
6 + + + - - - + - III
Do Do.
3
" .01 cc.
"
.. 3
7 + + + - - - + - III
Do.
8 + + + - - - + - III
Do.
Class I, nil.
Fœcal bacilli in .1 cc. and upwards.
No vibrios in 100 cc.
9 + + + - - - + - III
Do.
" II, 10.
10 +
+ +
-
-
- + - III
Do.
" III, nil.
SAMPEE II.—FOUNTAIN No. 19 IN EASTERN END.
1 + + + - - - + - III B. Neapolitanus
Group I, nil.
2 + + + - - - + - III
Do.
"
II, nil.
3 + + + - - - + - III
Do.
„
III, 10.
4 + + + - - - + - III
Do.
" IV, nil.
Total colonies per cc. on agar at 37°—80.
Bile salt lactose, medium.
+
-
5 + + + - - - + - III
Do.
6 + + + - - - + - III
Do.
7 + + + - - - + - III
Do.
1 tube of 20 cc of water taken
1
. .
8 + + + - - - + - III
Do.
Class I, nil.
9 + + + - - - + - III
Do.
,,
II, 10.
2 tubes of 10 cc. "
2
. .
10 + + + - - - + - III
Do.
„ III, nil.
3
„
5 cc. "
3
..
3
„" 1 cc. "
2 1
3
„
.1 cc. "
1
2
3
„ -01 cc.
..
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
.
SAMPLE III.—FOUNTAIN No. 10 IN DRAUPADI AMMEN STREET
.
Total colonies per cc. on agar at 37°—100 .
1 + + + + - + - - III
B. 67
Group I, nil.
2 + + + + - + - - III
Do.
„
II, nil.
3 + + + + - + - - III
Do.
„
III, 10.
4 + + + + - + - - III
Do.
" IV, nil.
5 + + + + - + - - III
Do.
Bile salt lactose, medium..
+
-
6 + + + + - + - - III
Do.
7
+ + + + - + - - III
Do.
Class I, nil.
8 + + + + - + - - III Do.
" II, 10.
1 tube of 20 cc. of water taken
1
..
9 + + + + - + - - III
Do.
„ III, nil.
10
+ + +
+
- + -
- III
Do.
2 t u b e s o f 1 0 c c . "
2
..
3
„
5 cc.
"
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.
REPORT.
The condition of the deep well water is much as was noted last quarter. There are ten fœcal germs to
the cc. but they all belong to one fairly resistant species. The samples from the distributary system show a
reduced number of fœcal germs of the same class. They can be described as fairly satisfactory. Low total
counts in all the samples are again in evidence. Chemically the water is, as usual, hard but distiuctly good.
49
194
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
47 600
47·400
Temporary hardness
Do.
19·500
23·500
Permanent hardness
Do.
4·500
4·500
Total hardness
Do.
24·000
28·000
Chlorine
Do.
3·195
2·485
Ammoniaoal nitrogen
Do.
0·002
0·002
Albuminoid nitrogen
Do.
0·002
0·002
Oxygen absorbed (Tidy's Process)
Do.
0·025
0·018
Nitric nitrogen
Do.
0·062
0·150
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphites
Present.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
SAMPLE III.
Physical appearances.
Colour and
Tr ans par ency.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
47·400
Temporary hardness
Do.
23·500
Permanent hardness
Do.
4·500
Total hardness
Do.
28·000
Chlorine
Do.
2·485
Ammoniacal nitrogen
Do.
Trace.
Albuminoid nitrogen
Do.
0·002
Oxygen absorbed ( Tidy's Process )
Do.
0·018
Nitric nitrogen
Do.
0·137
QUALITATIVE.
Nitrites
Nil.
Sulphates
Present.
Phosphates
Nil.
Iron, poisonous metals
Nil, nil.
195
MADURA.
WATER SAMPLES TAKE
N—10TH NOVEMBER 1910.
REMARKS.
—The river Vaigai was in floods when samples were collected. There has been about 20·88 inches of rain since last
analysis. The supply is intermittent.
Bacteriological Analyses.
SAMPLE I.—FROM THE RUNNING WATER OF THE VAIGAI
RIVER.
C o l o n y N u mb e r . Lactose.Sacchar os e. Dul ci t e.Adoni t e.
I n u l i n e .
V o g e s a n d P r o s k .
Indol.Mot i l i t y.Group.
Name
of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at, 37° C
—1,960.
Bile salt lactose, medium.
+
−
1
+
− − − − −
+
−
I B. Vesiculosus
Group I, 4.
1 tube of 20 cc. of water taken
1
2
+ +
− − − −
+
− IV B. Coscoroba
„
II,
nil.
2 tubes of 10 cc.
„
2
3
+ +
− − − −
+ +
IV
B. 106
„
III,
6
3 „ 5 cc.
„
3
4
+ +
− − − −
+ +
IV
Do.
„
IV
3 „ 1 cc.
„
3
5
+ +
− − − −
+ +
IV
Do.
3 „ ·1 cc.
„
3
6
+
− − − − −
+
−
I
B. Vesiculosus
3 „ ·01 cc.
„
3
7
+
− − − − −
+
−
I
Do.
Fœcal bacilli in ·01 cc. and upwards.
8
+ +
− − − −
+ +
IV B. 106
Class I, nil.
9
+
− − − − −
+
−
I B. Vesiculosus
„
II,
6.
No vibrios in 100 cc.
10
+ +
−
− −
−
+ +
IV B. 106
„
III,
4.
SAMPLE II.—TAP IN FRONT OF PUMPING STATION.
1
+ + +
− −
+
− − III B. 75
Group I, I.
Total colonies per cc. on agar at. 37°C—100.
2
+ +
− − −
+
− −
IV
B. 112
„
II,
nil.
3
+ +
− − −
+
− − IV
Do.
„
III,
3.
Bile salt lactose, medium.
+
−
4
+ +
− − −
+
− − IV
Do.
„
V,
6.
5
+ +
− − −
+
− − IV
Do.
6
+ +
− − −
+
− − IV
Do.
7
+ + +
− −
+
− − III B. 75
Class I, nil.
8
+ + +
− −
+
− − III
Do.
„
II,
nil.
1 tube of 20 cc. of water taken
1
9
+ +
− − −
+
− −
IV
B. 112
„
III,
4.
2 t ubes of 10 cc.
„
2
10
+
− − − − −
+ +
I B.Grunthal
Undetermined, 6.
3 „ 5 c
c „
3
3 „ 1 cc.
„
3
3 „ ·1 cc.
„
1
2
3 „ ·01 cc.
„
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN MANGAMMAL CHATTRAM.
1
+
− − − − −
+
−
I
B. Vesiculosus
Group I, 9.
Total colonies per cc. on agar at 37° C
—120.
2
+
− − − − −
+
−
I
Do.
„
II,
nil.
3
+
− − − − −
+
−
I
Do.
„
III,
nil.
Bile salt lactose, medium.
+
−
4
+
− − − − −
+
−
I
Do.
„
IV.
1.
5
+
− − − − −
+
−
I
Do.
6
+
− − − − −
+
−
I
Do.
7
+
− − − − −
+
−
I
Do.
Class I, nil.
8
+ +
− − −
+ +
−
IV
B. 113
„
II,
nil.
1 tube of 20 cc. of water taken
1
9
+
− − − − −
+
−
I
B. Vesiculosus
„
III,
9.
2 tubes of 10 cc.
„
2
10
+
− − − − −
+
−
I
Do.
Undetermined, 1.
3 „ 5 c
c „
3
3 „ 1 cc.
„
2
1
3 „ ·1 cc.
„
3
3 „ ·01 cc.
„
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—PILLAR FOUNTAIN NEAR BIG TEPPAKULAM.
1
+
− − − − −
+
−
I B. Vesicnlosus
Group 1, 9.
Total colonies per cc. on agar at 37° C—cannot be
counted.
2
+
− − − − −
+
−
I
Do.
„
II
nil.
3
+
− − − − −
+
−
I
Do.
„
III,
nil.
4
+
− − − − −
+
−
I
Do.
„
IV,
1.
Bile salt lactose, medium.
+
−
5
+ +
− − − −
+
− IV B. Coscoroba,
6
+
− − − − −
+
−
I B. Vesiculosus.
7
+
− − − − −
+
−
I
Do.
8
+
− − − − −
+
−
I
Do.
Class I, nil.
9
+
− − − − −
+
−
I
Do.
„
II,
1.
1 tube of 20 cc, of water taken
1
10
+
− − − − −
+
−
I
Do.
„
III,
9.
2 tubes of 10 cc.
„
2
3 „ 5 cc.
„
3
3 „ 1 cc.
„
3
3 „ ·1 cc .
„
2
1
3 „ ·01 cc.
„
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
196
REPORT.
Not much was to be expected from the water of the river Vaigai on this occasion the river being i
n
floods, and we are therefore not surprised to note a large total count, large total solids, which are mainly
in suspension however and one hundred fœcal germs to the cc. It is therefore all the more gratifying to
observe the results got with the water as distributed to the town. It has been better of course, so there is
still something to strive for, but it has been a very great deal worse.
Samples II and III being much on a par can be considered together and we find them showing a
twentyfold reduction in the total count and a one hundred fold reduction in the excremental germs.
These very fair results bear witness to creditable management.
Sample No. IV.—The water from the Pillar Fountain near Big Teppakulam has. always been worse
than the others and attention might be turned in this direction to ascertain the cause. From a quite
satisfactory figure the total number of genus has become uncountable and the fœcal germs have been
increased ten times. This seems to point to defects in this stretch of pipe or to silt having accumulated in it.
Chemically the filtered water is in good order. It is rare to find the organic matter so small in
amount and the albuminoid nitrogen in such low ratio to the absorbed oxygen.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Traspareney.
Brownish and opaque.
Yellowish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids
..
..
..
..
..
Parts per 100,000 ..
50.600
19.000
Temporary Hardness .. .. .. ..
Do.
. .
7.000
7.500
Permanent hardness ..
..
..
..
Do..
2 . 0 0 0
1.500
Total hardness..
..
..
..
D o . . .
9.000
9.000
Chlorine
. ,
..
....
Do.
..
1.065
1.420
Ammoniacal nitrogen..
..
..
..
.
Do..; 0.006
0.004
Albuminoid nitrogen ..
..
..
..
Do...
0.025
0.003
Oxygen absorbed (Tidy's Process) ..
..
Do.
0.394
0 . 0 6 1
Nitric nitrogen..
..
..
..
..
Do...
0.037
0 037
QUALITATIVE.
Nitrites
..
..
..
..
..
..
..
..
..
Nil.
Nil.
Sulphates
..
..
..
..
..
..
..
..
..
Present.
Present.
Phosphates
..
..
..
..
..
..
..
..
..
Nil.
Nil.
Iron, poisonous metals
..
..
..
..
..
..
..
N i l , n i l .
Nil, nil.
197
NELLORE.
WATER SAMPLES TAKEN—16TH. NOVEMBER 1910.
REMARKS.—The Northern Pennar was in floods when samples were taken. The supply is intermittent. There has been about 23.99
inches of rain since lest analysis.
Bacteriological Analyses.
SAMPLE
I
.—FROM THE RIVER BED OF NORTHERN PENNAR.
C o l o n y n u m b e r LactoseSacchar oseDulciteAdoni t eInulin V a g a s a n d F r o s k IndolMot ol i t yGroup
Name of Bacilli.
Group and
Remarks
Total colonies per cc. on agar at 37° C—1,210.
Bile salt lactose, medium.
+
−
1
+
+ − + − + − − IV B. Lactis cerogenes
Group I, 6.
1 tube of 20 cc
.
1
2
+
+ − − − + − − IV B. 112
„
II,
nil.
2 tubes of 10cc.
2
3
+
− − + − − + −
I B. Acidi Lactici
„
III,
2.
3 „ 5 cc
.
3
4
+ − −
+
− −
+
−
I
Do.
„
IV,
2.
3 „ 1 cc.
3
5
+ + − − − − +
+
III B. 71,
3 „·1 cc.
3
6
+ − − + − −
+
−
I B Acidi Lactici
3 „·01 cc.
1
2
7
+
− − + − −
+
−
I
Do.
Class I, 1.
Fœcal bacilli in 1 cc. and upwards.
8
+ + + − − − +
+
III
B. 71
„
II
8.
9
+
− − + − − + −
I
13.Acidi Lactici.
„
III,
nil.
Vibrios present in 100 cc.
10
+
− − − + + − + I B. Lovans
Undetermined, 1.
SAMPLE II.—FROM TAP IN HEAD WATER WORKS.
1
+
− − − − −
+ +
I B. Grunthal
Group I, 7.
Total colonies per cc. on agar at 37° C—90
2
+
− − − − − + +
I
Do.
„ II, nil.
3
+
+ −
+
−
+
− − IV B. Lactis ærogenes
„ III, nil.
Bile salt lactose, medium.
+ −
4
+ +
− − − − +
+
I B. Grunthal
,, IV, 3.
5
+
− − − − − + + I
Do.
6 + − − − − − +
+
I
Do.
7
+
−
− − − − +
+
I
Do.
Class I, nil.
1
tube
of
2
0 cc.
1
8
+
− − + − + − −
I
?
„ II, 3.
2 tubes of 10 cc.
1
1
9
+
+ − + − − +
+
IV B. 100
„ III, 6.
3 „ 5 cc.
1
2
10
+
+
−
+
− −
+ +
IV
Do.
Undetermined, 1.
3 „ 1 cc.
3
3
„ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in 10 cc. and upwards.
No vibrius in 100 cc.
SAMPLE III.—TAP IN EASTERN CORNER− FOUNTAIN N
O
.3
NAVAPET.
1
+
+
−
+
−
+
−
+ IV B. 102. Group I, 2.
Total colonies per co. on agar at 37° C—900.
2
+
−
+ +
+
+ + −
II
?
„ II, 2.
3
+
− −
+
−
+
− + I
?
„ III, 2.
Bile salt lactose, medium.
+
−
4 +
+
+
+
+ + +
− III B.Oxytocus pernicio
sus
„ IV, 4.
5
+
+
+ +
+ +
+
−
III
Do.
6
+
+ −
+
−
+
− + IV B. 102.
7
+
−
+ +
+
+
+ −
IV
?
Class I, 2.
8
+
+
−
+
−
+
−
+
IV B. 102.
„ II, 4.
1 tube of 20 cc.
1
9
+
− −
+
−
+
− + I
?
„ III, nil.
2 tubes of 10 cc.
2
10
+
+ −
+
− + − + IV B. 102
Undetermined, 4.
3 „ 5 cc.
1
2
3 „ 1 cc
.
3
3 „·1 cc.
3
3 „·01 cc.
3
Fœcal bacilli in 20 cc.
Vibrios present in 100 cc.
SAMPLE IV.—TAP IN SOUTHERN CORNER IN FRONT OF DISTRICT
COURT FOUNTAIN No.52.
1
+ +
+
−
−
−
+ + III B. 71
Group I, 3.
Total colonies per cc. on agar at 37° C—30.
2 +
+ +
− − −
+ + III Do.
„ II, nil.
3
+ +
− − − −
+
+ IV B. 106
„ III, 2.
Bile salt lactose, medium.
+
−
4
+ +
− − − −
+ + IV Do.
„ IV, 5.
5
+ +
− − −
−
+ +
IV Do.
6
+
− − − − −
+
+
I B. Grunthal.
7
+ +
− − − −
+
+ IV B. 106. Class I, nil.
8
+ +
− − − −
+ +
IV
Do.
„ II, 7.
1 tube of 20 cc.
1
9
+
− − − − −
+ + I B . G r u n t h a l .
„ III, 3.
2 tubes of 10 cc.
1
1
10
+
− − − − −
+ +
I
Do.
3 „ 5 cc.
3
3 „ 1 cc.
3
3 „·1 cc.
3
3 „·01 cc.
3
Fœcal bacilli present in 60 c
c.
No vibrios in 100 cc.
50
SAMPLE I.
SAMPLE IV.
198
REPORT.
Passage through the infiltration gallery at Nellore usually results in a considerable improvement of
the water and this occasion forms no exception to the rule. The river being in flood we naturally expect
to find the water polluted but the pollution is moderate in amount and the kind shows that the most
objectionable germs have been got rid of.
Sample II shows a very marked improvement and the water at this point may be considered quite satis-
factory. It is very much otherwise with Sample III. Although there is an actual decrease in the number
of fœcal germs there is a great variation for the worse in the kind, and this variation is accompanied by the
presence of vibrios in the water which is always a suspicious circumstance. The large increase in the total
count also requires explanation. The three changes together seem to point to imperfections in this section
of the pipe line. It is curious to note that Oxytocus perniciosus was found in the water-supply at this
time last year but then it was in the sample from the headworks. In October 1908. this organism was
widely distributed in the Presidency but was not found at Nellore.
Sample II again is in quite a satisfactory condition which again se ėms to point to the origin of the
bad features of the last sample being due to the pipe line.
Chemically the fact that the water is not, entirely derived from the Pennar river is very clearly seen.
The river water is soft and very definitely polluted. The water as drawn from the suction well is hard and
saline, but the greater part of the organic matter has been oxidised. Mere passage through the infiltration
gallery could not cause such a change.
Chemical Analyses.
Physical appearances.
Colour and
Transparency.
Brownish and opaque.
Colourless and. clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
..
..
..
..
..
Parts per 10,000
38.000
52.000
Temporary hardness ..
..
..
..
Do. ..
9.500
21.000
Permanent hardness ..
..
..
..
Do. .. 0.500
1.000
Total hardnees..
..
..
..
Do. ..
10.000
22.000
Chlorine
..
..
..
.. ..
Do. ..
2.840
7.100
Ammoniaoal nitroge
..
..
.. Do. ..
0 004
0.006
Albuminoid nitroge
..
..
..
D o . . .
0-014
0.003
Oxygen absorbed ( Tidy' s Process)
..
..
D o . . .
0-098
0.012
Nitrio nitrogen
..
..
..
..
D o . . .
0.025
0.062
QUALITATIVE.
Nitrites..
..
..
. . . .
. . . . . . . .
Nil.
Nil.
Sulphates
..
...
..
..
..
..
. . .. ..
Present.
Present.
Phosphates
..
..
..
..
.
.
. . . . . . ..
Nil.
Nit.
Iron, poisonous metals
..
..
..
..
..
..
..
Nil, nil.
Nil, nil.
199
WATER SAMPLES TAKEN—17TH NOVEMBER 1910.
REMARKS.—The river Kalyani was partially flooded when samples were taken. The supply is constant. There has been about 23·44
inches of rain since last analysis.
Bacteriological Analyses
.
SAMPLE I.—A SHALLOW WELL TO THE EAST OF HEAD WORKS.
C o l o n y n u m b e r .
Lact ose.Sacchar os e. Dul ci t e.Adoni t e.Inulin.V o g e s a n d P r o s k . Indol.Mot i l i t y. Group.
Names of Bacilli.
Group and Remarks.
Total colonies per cc. on agar at 37–160.
Bile salt lactose, medium.
+
−
1 tube of 20 cc. of water taken
1
2 tubes of 10 cc. „
2
1
+
− − − − −
+ +
I
B. Grunthal
Group I, 7.
3
„
5 cc. „
3
2
+
− − − − −
+ +
I
Do.
„ II, nil.
3 „ 1 cc. „
3
3
+
− − − − −
+ +
I
Do.
„ III, nil.
3
„
·1 cc. „
3
4
+ +
− − − −
+ +
IV B. 106
„ IV, 3.
3
„
·01 cc. „
3
5
+
− − − − −
+ +
I B. Grunthal
6
+
− − − − −
+ +
I
Do.
7
+
− − − − −
+ +
I
Do.
Class I, nil.
Fœcal bacilli in ·1 cc. and upwards.
8
+
− − − − −
+ +
I
Do.
„ II, 3.
9
+ +
− − − −
+ +
IV B. 106
„ III, 7.
No vibrios in 100 cc.
10
+ +
− − − −
+ +
IV
Do.
SAMPLE II.—A SHALLOW WELL TO THE WEST OF HEAD WORKS.
Total colonies per cc. on agar at 37–380.
1
+ +
− − − −
+ +
IV B. 106
Group I, 1.
+
−
2
+ +
− − − −
+ +
IV
Do.
„
II,
1.
Bile salt lactose, medium.
3
+
− − − − −
+ +
I B. Grunthal
„ III, 1.
4
+ +
− − − −
+ +
IV E. 106
„ IV, 7.
1 tube of 20 cc. of water taken
1
5
+ +
− − − −
+ +
IV
Do.
2 tubes of 10 cc. ,,
2
6
+ +
− − − −
+ +
IV
Do.
3 „ 5 cc. „
3
7
+ +
− − − −
+ +
IV
Do.
Class I, 1.
3 „ 1 cc. „
3
8
+
− − − − −
+ +
IV
Do.
„ II, 8.
3 „ ·1 cc. „
3
9
+ +
− − − − − − II B. Schaefferi
„ III, 1.
3 „ ·01 cc. „
3
10
+ +
− − − −
+ +
I I I B. 71.
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—COLLECTING CHAMBER—FILTERED WATER.
1
+ + +
− − − −
+
III B. 74
Group I, nil.
Total colonies per cc. on agar at 37°–460.
2
+ + + +
− − −
+
III
?
„ II, nil.
3
+ +
−
+
− − −
+
IV
?
„ III, 5.
4
+ +
− − − − −
+
IV B. 109
„ IV, 5.
Bile salt lactose, medium.
+
−
5
+ +
− − − − −
+
IV
Do.
6
+ + +
− − − −
+
III B. 74
7
+ + +
− − − −
+
III Do.
Class I, nil.
8
+ + +
− − − −
+
III Do.
,, II, 4.
1 tube of 20 cc. of water taken
1
9
+ +
− − − − −
+
IV B. 109
„
III,
4.
2 tubes of 10 cc. „
1
1
10
+ +
− − − − −
+
IV
Do.
Undetermined, 2
3
„
5 cc. „
1
2
3 „ 1 cc. „
3
3 „
·1 cc. „
3
3 „ ·01 cc. „
3
Fœcal bacilli present in 30 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP IN WESTERN CORNER IN PALLA STREET.
1
+ + +
− − −
+ +
III
B 71
Group I, nil.
Total colonies per cc. on agar at 37°–400.
2
+ + +
− − −
+ +
III Do.
„ II, nil.
3
+ + +
− − −
+ +
III
Do.
„ III, 10.
Bile salt lactose, medium.
+
−
4
+ + +
− − −
+ +
III
Do.
„ IV, nil.
5
+ + +
− −
−
+ +
III Do.
6
+ + +
− − −
+ +
III
Do.
1 tube of 20 cc. of water taken
1
7
+ + +
− − −
+ +
II Do.
Class I, ni.
2 tubes of 10 cc. „
2
8
+ + +
− − −
+ +
III Do.
„ II, 10.
3
„
5 cc. „
3
9
+ + +
− − −
+ +
III
Do.
„
III,
ni .
3
„
1 cc. „
3
10
+ + +
− − −
+ +
III
Do.
3
„
·1 cc. „
1
2
3 „ ·01 cc. „
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.