NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
101
REPORT.
Dindigul is not fortunate in its water-supply. The quantity is said to be deficient and the quality
certainly leaves much to be desired. Sometimes the deep-well water is available for supply, sometimes
n o t ; b u t i t i s p r a c t i c a l l y a l w a y s b a d . O n t h e p r e s e n t o c c a s i o n i t i s s o b a d a s t o b e p o s i t i v e l y d a n g e r o u s
to There are a hundred fœcal germs to the cc. and the highly susceptible species of class I are in
evidence. The water has therefore been recently contaminated.
The samples from the Infiltration gallery and from the distribution system may be considered together
as they are essentially similar. They all show evidence of most extensive pollution, the number of
different species of fœcal germs present being very large. A disquieting feature is the large proportion
of undetermined varieties that are present among those whose susceptibilities to natural purifying agencies
has been determined. It may very well he that some of these undetermined varieties belong to the more
susceptible classes, which would indicate that the water had been recently as well as extensively polluted.
Chemically the water from the deep well is rather better than that from the Infiltration gallery.
Contrary to what we might expect ,it is definitely less hard. Otherwise the two samples are much alike
and of fair quality.
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 ..
46.000
38.000
Temporary hardness
..
..
..
..
Do.
25.500
15 500
Permanent hardness
..
..
..
..
Do.
1.500
2.500
Total hardness
..
..
..
..
Do.
..
27.000
18.000
Chlorine
Do.
2.485
2.485
Ammoniacal nitrogen ..
..
..
..
Do.
0.002
0.003
Albuminoid nitrogen ..
..
..
..
Do.
Trace.
0.002
Oxygen absorbed (Tidy's Process)
..
..
Do.
..
0 . 0 1 4
0.014
Nitric nitrogen ..
..
..
D o .
0.175
0.062
QUALITATIVE.
Nitrites
..
..
..
Nil.
Nil.
Sulphates
..
..
..
..
.
.
..
..
Present.
Present.
Phosphates
..
..
..
Nil.
Nil.
Iron, poisonous metals
..
..
..
..
..
..
Nil, nil.
Nil, nil.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
Total solids
..
..
.
QUANTITATIVE.
..
.. Parts per 100,000 ..
46.000
Temporary hardness
..
.
..
Do.
25.500
Permanent hardness
..
..
..
Do.
2.500
Total hardness ..
D o .
28.000
Chlorine .
..
.
D o .
2.485
Ammoniacal nitrogen ..
..
.
Do.
..
Trace.
Albuminoid nitrogen ..
Do.
0 002
Oxygen absorbed (Tidy's Process)
..
..
Do.
0.021
N i t r i c n i t r o g e n ..
..
Do.
..
0.187
QUALITATIVE.
Nitrites
S u l p h a t e s
..
..
..
..
Phosphates
..
Iron, poisonous metals
..
26
102
MADURA.
WATER SAMPLES TAKEN—16TH MAY 1910.
REMARKS.—The river bed of Vaigai is dry. But the sample was taken from a channel cut in the bed of the river. The supply is
intermittent. There has been about 2·69 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—FROM A CHANNEL CUT IN THE BED OF THE RIVER VAIGAL.
Number.Lact ose.Sacchar os e.Dulcite.Adoni t e. Inulin.
V o g e s a n d P r o s k .
Lndol.Mobi l i t y.Group.
Name of Bacilli.
Group and
Remarks
.
Total colonies per cc. on agar at 37°—630.
Bile salt lactose, medium.
+
–
1 tube of 20 cc. of water taken
1
1 + – +
–
– –
+
+ II B. Coli Communis
GroupI, 2.
2 tubes of 10 cc. ,,
2
2 + –
+
– – –
+ +
II
Do.
„ II, 6
3„ 5 cc. ,,
3
3
+
+
– – – –
+ +
IV B. 106
„ III, nil
,
3„ 1 cc. ,,
3
4 +
– – – – –
+ +
I B. Grunthal
„ IV,2.
3„ ·1cc. ,,
3
5
+ –
+
– – –
+ +
II B. Coli Communis.
3„ ·01 cc. ,,
3
6
+
– + – – –
+ +
II
Do.
7
+
– – – – –
+ +
I B. Grunthal
Class I, 6.
Fœcal bacilli in ·0l cc. and upwards.
8
+
– + – – –
+ +
I I B. Coli Communis
„ II, 6.
9
+
+
+
– – –
+ +
II
Do
„ III,
2.
No vibrios in 100 cc.
10
+ +
– – –
–
+ +
IV B. 106
SAMPLE II.—TAP OPPOSITE TO PUMPING STATION.
1
+ + + +
–
+
– –
III
B.67
GroupI, ni
l.
2
+ + +
– – + – – III B. 75
II, nil.
Total colonies per cc. on agar at 37°—320.
3
+ + + +
–
+
– – III B. 67
„ III, 6.
4
+ +
– – –
+
– – IV B. 112
„ IV, 4,
+
–
5
+
+
– +
–
+
– – IV B. Lactis ærogenes.
Bile salt lactose, medium.
6
+
+ + – – + – – III B. 75
Class I, nil.
7
+ + + +
–
+
– – III B. 67
,, 1I, 7.
1 tube of 20 cc. of water taken
1
8
+ +
– + – + – – IV B. Lactis ærogenes
„ III, 2.
2 tubes of 10 cc. ,,
2
9
+ +
–
+
– + – – IV
Do.
Undetermined, 1
3 ,, 5 cc. ,,
3
10
+ + + +
–
+
– – III B. 67.
3 ,, 1 cc. ,,
3
3 ,, ·1 cc. ,,
2
1
3 „·01 cc. ,,
3
Fœcal baoilli in ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN MANGAMMAL CHATTRAM
1
+ +
– + –
– – IV B. Lactis ærogenes
Group I, nil.
2 + + –
+
–
+
– – IV
Do.
„ II, nil.
Total colonies per cc. on agar at 37°—90
3 + + – + – + – – IV
Do.
„ III, nil.
4 + + –
+
–
+
– – IV
Do.
„ IV, 10.
+
–
5 + +
– +
–
+
– – IV
Do.
Bile salt lactose, medium.
6 +
+
–
+
– + – – IV
Do.
7 + + – + –
+
– – IV
Do.
Class I, nil.
1 tube of 20 cc. of water taken
1
8
+
+ –
+
–
+
– – IV
Do.
„ II, 10.
2 tubes of 10 cc.
2
9 +
+
– + –
+
– – IV
Do.
„ III nil
.
3 „ 5 cc. ,,
3
10
+ +
–
+
–
+
– – IV
Do.
3 „ 1 cc. ,,
3
3 „ 1 cc. ,,
3
3 „·01 cc. ,,
3
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—FROM A PILLAR FOUNTAIN NEAR BIG TEPPAKULAM .
1
+ +
–
+
– + – – IV B. Lactis ærogenes
Group I, nil
2
+ + + +
–
+
– –
I I I
?
„ II
nil ,
Total colonies per cc. on agar at 37°—190.
3 + + –
+
–
+
– – IV B. Lactis ærogenes
„ III, 2.
4
+
+ –
+
–
+
– – IV
Do.
„ IV, 8.
+
–
5
+ +
– – – – – – IV B.111.
Bile salt lactose, medium.
6
+
+ + – – + – – III B. 75.
7
+ +
– – – – – – IV B. 111
Class I, nil.
1 tube of 20 cc. of water taken
1
8 + + – + – + – – IV B Lactis ærogenes
„ II, 5.
2 tubes of 10 cc. ,,
2
9
+ +
– – – – – – IV B. 111
„ III, 1.
3 „ 5 cc. ,,
3
10 +
+
– + – + – – IV B. Lactis ærogenes
Undetermine
d, 1.
3 „ 1 cc. ,,
1
2
3 „ ·1 cc. ,,
nil.
3
3 „ ·01 cc. ,,
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
103
REPORT.
The River Vaigai is a very unsatisfactory source for a water-supply. On this occasion the majority of
The
fœcal germs present consist of Coli Communis, the type bacillus of recent excremental pollution. Sucq
a water must be dangerous to use for drinking. On this occasion the water from tap opposite the pumping
station is better than the river water in that the susceptible species are no longer evident, though there is
an actual increase in the number of fœcal germs. Can we attribute this to the better management of the
waterworks called for in the last report? The improvement in the other supplies is progressive; first
there is a reduction in species and then in numbers. These samples can be classed as very fairly
satisfactory.
Chemically the water seems to vary in a rather remarkable manner, and on this occasion is much
harder than usual. The only other figure to note is that for Chlorine, which is very high. It is probably of
mineral origin, however, as there is no sign of such extensive excremental pollution as would be
required to impart this amount of salt to the water. The organic matter present is mainly animal in origin
and recently added to the water as it is not oxidised.
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Slightly yellowish
but clear.
Slightly yellowish
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
..
..
..
..
.. Parts per 100,000 ..
72.600
64.000
Temporary hardness ..
..
..
..
Do.
..
20.000
20.500
Permanent hardness
..
..
D o .
.
1.000
1.500
Total hardness..
....
. .
D o . ..
21.000
22.000
Chlorine ..
..
..
..
..
..
Do.
..
17.040
1 4 . 2 0 0
Ammoniacal nitrogen ..
..
..
..
Do.
..
0.002
0.003
Albuminoid nitrogen..
..
..
..
Do.
. .
0.008
0.005
Oxygen absorbed ( Tidy's .Process)
..
..
Do.
0.062
0.035
Nitric nitrogen ..
..
..
..
..
Do.
T r a c e .
0.037
QUALITATIVE.
Nitrites
..
..
. .
. . . .
..
..
. .
. .
Nil.
Nil.
Sulphates
..
..
..
. .
. .
. .
..
..
..
Present.
Present.
Phosphates ..
..
..
..
. .
..
.
Nil
Nil.
Iron, poisonous metals
..
..
..
..
. .
..
..
Nil, nil.
Nil, nil.
104
KURNOOL.
WATER SAMPLES TAKEN—23RD MAY 1910.
REMARKS.–Water was not flowing in the Cuddapah–Kurnool canal. The supply is intermittent. There has been about 1·34 inches
of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—CUDDAPAH–KURNOOL CANAL.
N u m b e r .
Lact ose.Sacchar ose.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.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37°—Countless.
Bile salt lactose, medium.
+
–
1 tube of 20 cc.
1
2 tubes of 10 cc.
3
1
+ +
– – – – – –
I V
B.III Group I, 5.
3 „ 5 cc.
3
2
+
– – – – –
+
–
I B. Vesiculosus
„ II, n i l .
3 „ 1 cc.
3
3
+
– – – – –
+
–
I
Do.
,, III, 1.
3 „ ·1 cc.
2
1
4
+ +
– – – –
+
–
I V B. Coscoroba
,, IV, 4.
3 „ ·01 cc.
3
5
+ + +
– – – – –
I I I B. 74.
6
+
– – – – – – –
I B. Mutabilis.
7
+
– – – – – – –
I
Do.
Class I, nil.
Fœcal bacilli in ·1 cc. and upwards.
8
+ +
– – – –
+
–
I V B. Coscoroba
,, II, 4.
9
+ +
– – – –
+
–
I V
Do.
„ III, 5.
No vibrios in 100 cc.
10
+
– – – – –
+
–
I B. Vesiculosus
Undetermined, 1.
SAMPLE II.—SETTLING TANK (NORTHERN).
1
+
– – – – –
+
–
I B. Vesiculosus
Group I, 3.
2
+
– – – – – – –
I B. Mutabilis
„ II, nil.
Total colonies per cc. on agar at 37°—1,820.
3
+
+
– – – –
+
–
I V B. Coscoroba
„ III, n i l
.
4
+
+
– – – – – –
I V B. 111
,, IV, 7.
Bile salt lactose, medium.
5
+
+
– – –
+ +
–
I V B. 114.
+
–
6
+
– – – – – – –
I B. Mutabilis.
7
+
+
– – – –
+
–
I V B. Coscoroba
Class I, nil.
8
+
+
– – –
+
– –
I V B. 112
„ II, 2.
1 tube of 20 cc.
1
9
+
+
– – – – – –
I V B. 111
„ III, 3.
2 tubes of 10 cc.
2
10
+ +
– – – – – –
I V B. 111
Undetermined, 5.
3 „ 5 cc.
3
3 „ 1 cc.
3
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—SETTLING TANK (SOUTHERN).
1
+ +
– – – –
–
–
I V B. 111
Group I, 5.
2
+
– –
+
– –
+
–
I B. Acidi lactici
„ II, nil .
Total colonies per cc. on agar at 37°—670.
3
+
– –
+
– –
+
–
I
Do.
„ III, nil.
4
+ +
– – – –
+
–
I V B. Coscoroba
„ IV, 5.
Bile salt lactose, medium.
+
–
5
+ +
–
+
– – – –
I V B. Gasoformans.
6
+ +
– – –
+ +
–
I V B. 114.
7
+
– – – – –
+
–
I B. Vesiculosus
Class I, nil.
1 tube of 20 cc.
1
8
+
– – – – – – –
I B. Mutabilis
„ II, 5.
2 tubes of 10 cc.
2
9
+ +
–
+
– – – –
I V B. Gasoformans
„ III, 3.
3 „ 5 cc.
3
10
+
– – – – –
+
–
I B. Vesiculosus
Undetermined, 2.
3 „ 1 cc.
3
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—FILTERED WATER.
1
+
– – – – –
+
–
I B. Vesiculosus
Group I, 8.
2
+
– – – – –
+
–
I
Do.
„ II, nil.
3
+
– – – –
+ + +
I
?
„ III 1.
4
+
– – – – –
+
–
I B. Vesiculosus
„ IV, 1.
Total colonies per cc. on agar at 37°—160.
5
+ +
– – –
+
– – IV B. 112.
6
+
– – – – –
+
–
I B. Vesiculosus.
Bile salt lactose, medium.
+
–
7
+
– – – – –
+
–
I
Do.
Class I, nil.
8
+ + + +
– – – – III B. Pneumoniæ
„ II, 1.
9
+
– – – – – – –
I B. Mutabilis
„ III, 7.
1 tube of 20 cc.
1
10
+
– – – – –
+
–
I B. Vesiculosus
Undetermined, 2.
2 tubes of 10 cc.
2
3 „ 5 cc.
3
3 „ 1 cc.
3
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
106
Chemical Analyses.
SAMPLE I .
S A M P L E I I .
Physical appearances
.
Colour
a n d T r a n s p a r e n c y .
White and opaque.
Slightly yellowish
but clear.
S m e l l .
N o n e .
N o n e .
QUANTITATIVE.
Total
solids
37·000
28·600
Temporary hardness
6·500
5·500
Permanent hardness
3·500
3·500
Total hardness
10·000
9·000
Chlorine
4·970
4·615
Ammoniacal nitrogen
0·005
0 · 0 0 4
Albuminoid nitrogen
0·014
0·008
Oxygen absorbed (Tidy's Process)
0·111
0·083
Nitric nitrogen
T r a c e .
Trace.
QUALITATIVE.
Nitrities
Nil.
Nil.
Sulphates
Present.
P r e s e n t .
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil , nil.
Nil , nil.
SAMPLE III.
S A M P L E V I I .
Physical appearances.
Colour and
T r a n s p a r e n c y .
Slightly yellowish
and hazy.
Colourless and clear.
Smell
N o n e .
N o n e .
QUANTITATIVE .
Total
solids
29·400
27·400
Temporary hardness
5·500
5·500
Permanent hardness
3·500
3·000
Total hardness
9·000
8·500
Chlorine
4·615
4·615
Ammoniacal nitrogen
0·003
0·002
Albuminoid nitrogen
0·008
0 · 0 0 5
Oxygen absorbed (Tidy's Process)
0·088
0·056
Nitric nitrogen
T r a c e .
T r a c e .
QUALITATIVE.
Nitrities
N i l .
N i l .
Sulphates
Present.
Present.
Phosphates
Nil.
N i l .
Iron, poisonous metals
Nil, nil.
Nil, nil.
109
OOTACAMUND.
WATER SAMPLES TAKEN—6TH & 7TH JUNE 1910.
REMARKS.–The
level of water in the reservoirs except Dodabetta Upper is low during this quarter. Rainfall since last analysis is as
follows:–
Name of reservoir.
Inches.
Dodabetta
12·06
Tiger Hill
11·29
Marlimund
2·99
B a c t e r i z o l o g i c a l A n a l y s e s .
S A M P L E I . – D O D A B E T T A U P P E R R E S E R V O I R .
NumberLa c t osNacchar os e.DulciteAdoni t e.Inulin.
V o g e s a n d P r o s k .
Indol . Moti l i tyGroup
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37°–10.
Bile salt lactose, medium.
+
–
1 tube of 20 cc.
1
1
+ + + +
+
–
+
– III
B. 66.
2 tubes of 10 c
c .
2
1
2 + + + +
– –
+
–
III
Do.
Group 1, nil.
3 „ 5 cc.
1
2
3
+ + + +
– –
+
–
III
Do.
„ II, nil.
3 „ 1 cc.
1
2
4
+ + + +
– –
+
–
III
Do.
„ III, 10.
3 „ ·1 cc.
1
3
5
+ + + +
– –
+
–
III
Do.
„ IV, nil.
3 „ ·01 cc.
3
6
+ + + +
– –
+
–
III Do.
Class I, nil.
7
+ + + +
– –
+
–
III
Do.
„ II, 10.
8
+ + + +
– –
+
–
III
Do.
„ III, nil.
Fœcal bacilli in 10 cc. and upwards.
9
+ + + +
– –
+
–
III
Do.
No vibrios in 100 cc.
10
+ + + +
– –
+
–
III
Do.
SAMPLE II.—DODABETTA LOWER RESERVOIR.
1
+ + + +
–
+
– –
III
B. 67.
2
+ +
–
+
–
+
– –
IV
B. Lact i s ærogenes.
Total colonies cc. on agar at 37°—10.
3
+ + + +
–
+
– –
III
B. 67
Group I, nil .
4
+ +
–
+
–
+
– –
IV
B. Lactis ærogenes
„ II, nil.
Bile salt lactose, medium.
+
–
5
+ +
–
+
–
+
– –
IV
Do.
„ III, 4.
6
+ +
–
+
–
+
– –
IV
Do.
„ IV, 6.
7
+ +
–
+
–
+
– –
IV
Do.
1 tube 20 cc.
1
8
+ + + +
–
+
– –
III
B. 67
Class I, nil.
2 tubes of 10 cc.
2
9
+ +
–
+
–
+
– –
IV
B. Lactis ærogenes
„ II, 10.
3 „ 5 cc.
1
2
10
+ + + +
–
+
– –
III
B. 67
„ III, nil.
3 „ 1 cc.
3
3 „ · 1 c c .
3
3 „ ·01 cc.
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—DODABETTA PIPE LINE.
Total colonies per cc. on agar at 37°— nil.
Bile salt lactose medium.
+
–
1 tube. of 20 cc.
1
2 tubes of 10 cc.
2 N o l a c t o s e f e r m e n t e r s c o u l d b e i s o l a t e d .
3 „ 5 cc.
3
3 „ 1 cc.
3
3 „ · 1 c c .
3
3 „ ·01 cc.
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE IV.—TIGER HILL RESERVOIR.
1
+ + +
– – –
+
–
III
B. Neapolitanus.
2
+ + +
– – –
+
–
III
Do. Group I, nil.
Total colonies per cc. on agar at 37°-40.
3
+ +
– – – –
+
–
IV
B. Coscoroba
,, II, nil.
4
+ +
– – – –
+
–
IV
Do.
,, III, 3.
Bile salt lactose, medium.
+
–
5
+ + +
– – –
+
–
III
B. Neapolitanus
„ IV, 7.
6
+ +
– – – –
+
–
IV
B. Coscoroba.
7
+ +
– – – –
+
–
IV
Do.
Class I, nil.
1 tube of 20 cc.
1
8
+ +
– – – –
+
–
IV
Do.
,, II, 10.
2 tubes of 10 cc.
2
9
+ +
– – – –
+
–
IV
Do.
„ III, nil.
3 „ 5 cc.
1
2
1 0
+ +
– – – –
+
–
IV
Do.
3 „ 1 cc.
3
3 „ · 1 c c .
3
3 „ ·01 cc.
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
28
110
SAMPLE V.—TIGER HILL PIPE LINE.
NumberLact oseSacchar os eDul ci teAdoni teInulin V o g e s a n d p r o s k
IndolMobi l i t yGroup
Name of Bacilli.
Group and
Remarks
Total colonies per cc. on agar at 37°—Cannot be counted.
Bile salt lactose, medium.
+
−
1 tube of 20 cc.
1
2 tubes of 10 cc.
2
1
+
− − − − − − −
I B. Mntabilis.
3 „ 5 cc.
3
2
+
− − − − −
+
−
I B. Vesiculosus.
3 „ 1 cc
3
3
+ + +
− − −
+
−
I I I B. Neapolitanus.
3 „ ·1 cc.
3
4
+ + +
− − −
+
−
I I I
Do.
Group 1, 4.
3 „ ·01 cc.
3
5
+ + +
− − −
+
−
I I I
Do.
„ II, nil.
Fœcal bacilli in 20 cc. and upwards.
6
+
− − − − −
+
−
I B. Vesiculosus
„ III, 6
7
+ + +
− − −
+
−
I I I B. Neapolitanus
„ I V ni l .
No vibrios in 100 cc.
8
+ + +
− − −
+
−
I I I
Do.
Cl ass I nil.
9
+
− − − − −
+
−
I B. Vesiculosus
„ II, 6.
1 0
+ + +
− − −
+
−
I I I B. Neapolitanus
,, III, 4.
SAMPLE VI.—OLD OOTACAMUND CISTERN.
1
+
−
−
−
− −
+
−
I B. Vesiculosus.
2
+
−
+
− − −
+
−
I I B. Schafferi
Group I, 4.
3
+
− − − − −
+
−
I B. Vesiculosus
„ II, 6.
Total colonies per cc. on agar at 37°—460.
4
+
− − − − − − −
I B. Mutabilis
„ III,
n i l .
5
+
−
+
− − −
+
−
I I B. Sehafferi
„ IV, nil.
6
+
−
+
− − −
+
−
I I
Do.
Bile salt lactose, medium
+
−
7
+
− − − − −
+
−
I B. Vesiculosus
Class I, 6.
8
+
−
+
− − −
+
−
I I B. Schafferi
„ II, nil.
9
+
−
+
− − −
+
−
I I
Do.
„ III, 4.
1 tube of 20 cc.
1
1 0
+
−
+
− − −
+
−
I I
Do.
2 tubes of 10 cc.
2
3 „ 5 cc.
3
3 „ 1 cc.
3
3 „ ·1 cc.
3
3 „·01 cc
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE VII.—FROM THE SURFACE OF THE MARLIMUND
RESERVOIR.
1
+
− −
+
− −
+
−
I B. Acidi lactici.
2
+
− −
+
− −
+
−
I
Do.
3
+
− −
+
− −
+
−
I
Do.
Group I, 10.
4
+
− −
+
− −
+
−
I
D o .
„ II, ni l
.
Total colonies per cc. on agar at 37°—390.
5
+
− −
+
− −
+
−
I
D o .
„ III,
n i l .
6
+
− −
+
− −
+
−
I
Do.
„ IV, nil.
7
+
− −
+
− −
+
−
I
Do.
Bile salt lactose, medium
+
−
8
+
− −
+
− −
+
−
I
Do.
Class I, nil.
9
+
− −
+
− −
+
−
I
Do.
,, II, 10.
1 0
+
− −
+
− −
+
−
I
Do.
„ III, nil,
1 tube of 20 cc.
2 tubes of 10 cc.
1
3 „ 5 cc.
2
3 „ 1 cc.
1
2
3 „ ·1 cc.
3
3 „·01 cc.
3
3
Fœcal bacilli not present in 60 cc.
No vibrios in 100 cc.
SAMPLE VIII.—MARLIMUND PIPE LINE.
1
+ +
−
+
−
− − −
I V B. Gasoformans.
2
+ +
−
+
−
+ +
−
I V B. 116.
3
+ +
+
+
−
+
− −
I I I B.67
Group I, nil.
Total colonies per cc. an agar at 37°—90.
4
+ +
−
+
−
+
− −
I V
B Lactis ærogenes
„ II, nil.
5
+ +
− − − − − −
I V B. 111.
„ III 1.
6
+ +
− − − −
+
−
I V B. Coscoroba
„ IV, 9.
Bile salt lactose, medium
+
−
7
+ +
− − − −
+
−
I V
Do.
Class I, nil.
8
+ +
− − − −
+
−
I V
Do.
„ II, 7.
9
+ +
−
+
−
+ +
−
I V B. 116
„ III nil.
1 tube of 20 cc. of water taken
1 0
+ +
− − − −
+
−
I V B. Coscoroba
Undetermined, 3.
2 tubes of 10 cc.
1
3 „ 5 cc.
2
3 „ 1cc.
3
3 „ ·01 cc.
2
1
3 „ ·01 cc.
1
2
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
112
SAMPLE IV.
SAMPLE VII.
Physical appearances.
Colour and
Transparency.
Yellowish and hazy.
Yellowish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
3·000
3·600
Temporary hardness
Do.
Nil.
Nil .
Permanent hardness
Do.
0·500
0·500
Total hardness
Do.
0·500
0·500
Chlorine
Do.
0·426
0·284
Ammoniacal nitrogen
Do.
0·004
0·003
Albuminoid nitrogen
Do.
0·002
0·028
Oxygen absorbed ( Tidy's Process )
Do.
0·133
0·174
Nitric nitrogen
Do.
Nil.
Nil.
QUALITATIVE.
Nitrites
Nil.
Nil .
Sulphates
Nil .
Nil
Phosphates
Nil .
Nil.
Iron, poisonous metals
Nil, nil .
Nil , nil.
SAMPLE VI.
SAMPLE IX.
Physical appearances.
Colour an
d Transparency.
Colourless and clear.
Slightly yellowish
but clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
4·200
3·000
Temporary hardness
Do.
1·000
Nil .
Permanent hardness
Do.
1·040
0·400
Total hardness
Do.
2·000
0·500
Chlorine
Do.
0·497
0·284
Ammoniacal nitroge
Do.
Trace.
0·003
Albuminoid nitrogen
Do.
0 003
Trace.
Oxygen absorbed (Tidy's Process)
Do.
0·027
0·069
Nitric nitrogen
Do.
Trace.
Nil.
QUALITATIVE.
Nitrites
Nil .
Nil .
Sulphates
Trace.
Nil .
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil , nil .
Nil , nil .
114
Chemical Analyses .
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and
clear.
Smell.
None.
None.
QUANTITATIVE.
Total Solids
Parts per 100,000
23·000
22·800
Temporary hardness
Do.
8 · 0 0 0
8·000
Permanent
Do.
1·000
1·000
Total hardness
Do.
9·000
9·000
Chlorine
Do.
2·840
2·840
Ammoniacal nitrogen
Do.
0·004
0·004
Albuminoid nitrogen
Do.
0·002
0·002
Oxygen absorbed ( Tidy’s Process)
Do.
0·026
0·026
Nitric nitrogen
Do.
0·037
0·050
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Present.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
115
VIZAGAPATA
M
WATER SAMPLES TAKEN—19TH & 20TH JUNE 1910.
REMARKS.–The level of water in tank is about 10 feet. The town supply is constant. There has been about 2·80 inches of rain since
last analysis.
Bacteriological Analyses .
SAMPLE I.—STORAGE TAN
K—UNFILTERED WATER.
N u m b e r .
Lactose.Sa c c ha r os e . Dulcite.Adoni t e. I n u l i n . V o g e s a n d P r o s k . Indole.MobilityGroup.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37°—
4,420.
Bile salt lactose, medium
+
−
1 tube of 20 cc. of water taken
1
1
+
+
−
+
−
+
− − IV B. Lactis ærogenes. Group I, nil.
2
tubes of 10 c
c. „
2 2
+
+
−
+
− − − −
IV
B.Gasoformans
„ II, nil.
3 „ 5
c
c. „
3
3 +
+
−
+
− − − −
IV
Do.
„ III, nil.
3 „ 1
cc.
„
3
4
+ +
−
+
− − − − IV
Do.
„ IV, 10.
3 „ · 1
c
c . „
3
5
+
+
−
+
− − − −
IV
Do.
3 „ ·01
c
c. „
3
6 +
+
− + − − − −
IV
Do.
7
+ +
− +
− − − −
IV
Do.
Class I, nil.
Fœcal bacilli in ·01 cc. and. upwards.
8 +
+
− + − − − −
IV
Do.
„ II, 10.
9 +
+
− + − − − −
IV
Do.
„ III, nil.
No vibrios in 100 cc.
10 +
+
− + − − − −
IV
Do.
SAMPLE II. —FILTERED WATER
—BEFORE IT PASSES TO THE
MAINS.
1
+
+
− − − − − −
IV B.
III
Group I, nil.
2
+
+
− + − + − − IV B. Lactis ærogenes.
„ II, nil.
Total colonies per cc. on agar at 37°—
480.
3 +
+
− + −
+
− −
IV
Do.
„ III, 4.
4
+ +
+
+
−
+
− −
III
B. 67
„ IV, 6.
+
−
5
+
+
−
+
−
+
− −
IV
B Lactis ærogenes.
Bile salt lactose, medium.
6
+ + +
+
−
+
− −
III
B. 67
7
+ + − + − + − −
IV
B. Lactis ærogenes. Class I, nil.
1 tube of 20 cc of water taken
1
8
+ + +
+
−
+
− −
III
B. 67
„ II, 9.
2 tubes of 10 cc.
„
2
9
+ + +
+
− + − − III
Do.
„ III, nil .
3 „ 5 cc.
„
3
10 + + − + −
+ − −
IV
B. Lactis ærogenes. Undetermined, 1.
3 „ 1 cc.
„
3
3 „ ·1 cc.
„
3
3 „ ·01 cc.
„
1
2
Fœcal bacilli in ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—EASTERNMOST TAP NEAR BEACH.
1
+
− − − − − + −
I B. Vesiculosus
Group I, 9.
2
+
− − − − −
+ −
I
Do.
„ II, 1.
Total colonies per cc, on agar at 37°—810.
3
+
− − − − − + −
I
Do.
„
III,
nil.
4
+
− − − − − + −
I
Do.
„ IV, nil.
Bile salt lactose, medium.
+
−
5
+
− + − − − + −
II B. Sohaefferi.
6
+
− − − − − + −
I B. Vesiculosus. Class I, 1.
7
+
− − − − −
+
−
I
Do.
„ II,
nil
.
1 tube of 20 cc. of water taken
1
8
+
− − − − − + −
I
Do.
„ III, 9.
2 tubes of 10 cc.
„
2
9 +
− − − − − + −
I
Do.
3 „ 5 cc.
„
3
10 + − − − − −
+
−
I
Do.
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 IV.—WESTERNMOST TAP NEAR RAILWAY STATION
COMPOUND.
1
+ +
+ +
−
+
− −
III
B. 67
Group I
nil.
2
+ +
+
+
−
+
− − III Do
„ II, nil.
3 + + − − − + − + IV B Cloacæ
„ III, 9.
Total colonies per cc. on agar at 37°—360.
4 + + + + − + − − III B. 67
„ IV, 1.
+
−
5
+
+
+ + − + − −
III
Do.
Bile salt lactose, medium.
6
+
+
+ + − +− − III Do.
7
+ + +
+ − +− −
III
Do.
Class I, nil.
1 tube of 20 cc. of water taken
1
8
+
+
+
+ − + − −
I Do.
„ II, 9.
2 tubes of 10 cc.
„
2
9
+ + +
+
−
+
− − III
Do.
„ III, 1.
3 „ 5 cc
. „
3
10
+
+ +
+ − + − − III Do.
3 „ 1 cc
. „
3
3 ,, ·1 cc.
„
3
3 „ ·01 cc
. „
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc
.
116
REPORT.
Although the type of fœcal germ present in the unfiltered water on this occasion is not objectionable,
the number is. On no previous occasion has the Vizagapatam Reservoir shown a hundred fœcal germs to
the cc. and it would be interesting to find if there had been any local or temporary cause to account for the
number now found. The total count is also very high, hut this figure has been exceeded on previous
occasions.
Filtration has brought about a marked improvement in the water, though it is still not -much to
boast about. The samples from the distributory system show as usual a further improvement. The
presence of a single specimen of the susceptible Class I in Sample III unconnected as it is with any other
sign of pollution having got access to the water, is probably to be explained by some faulty manipulation,
Chemical Analyses.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency.
Brownish and
opaque.
Brownish and
opaque.
Smell.
None.
None.
QUANTITATIVE.
Total solid_
..
..
..
.. Parts per 100,000 ..
25∙000
15 600
Temporary naraness ..
..
..
..
Do.
..
5∙500
5∙0 0 0
Permanent hardness ..
..
..
..
Do.
..
1∙500
2∙0 0 0
Total hardness
..
..
..
. .
Do.
..
7.000
7∙000
Chlorine
..
..
..
..
..
1)o.
1∙952
1∙952
Ammoniacal nitrogen
..
..
..
Do.
..
0∙004
0∙0 0 4
Albuminoid nitrogen
..
..
..
Do.
. .
0∙013
0∙0 0 3
Oxygen absorbed (Tidy's Process) ..
..
Do.
0∙125
0.035
Nitric nitrogen
..
..
..
..
Do.
..
nil.
nil.
QUALITATIVE.
Nitrites
..
..
..
..
..
..
..
..
..
Nil.
Nil.
Sulphates
..
..
..
..
..
..
..
. .
. .
Present.
Present.
Phosphates ..
..
..
..
..
..
..
..
. .
Nil.
Nil.
Iron, poisonous metals
..
..
..
..
..
..
..
Nil, nil.
.Nil, nil.