NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
198
SAMPLE V.—FROM NORTHERN CORNER. FROM A PILLAR FOUNTAIN,
A FEW YARDS OFF THE MUNICIPAL HOSPITAL.
Co l o n y n u mb 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 .
Vo g e s a n d P r o s k .
Indol.
Mo t i l i t y .
Gr o u p .
Bacillus.
Group and
Remarks.
(a) Total colonies per cc. on agar at 37°— 1,480.
(b) Bile salt lactose, medium.
+
-
1 tube 20 cc. of water taken
..
..
1
. .
1
+ + -
- - - -
+ IV B. 109
..
.. Group I, nil.
2 tubes 10 cc. ,, . . . .
2
..
2 + + -
+ - + - - IV B. Lactis ærogenes ..
,, II, nil.
3 ,, 5 cc. ,, . . . .
2
..
3 + + -
- - - + + I V B. 106
..
..
„ III, 3.
3 ,, 1cc. ,, .. ..
3
. .
4 + + -
- - - - +
I V B. 109
..
..
,, IV, 7.
3 ,, .1cc ,, .. ..
3
. .
5 + + -
+ - + - - IV B. Lactis ærogenes.
3 ,, .01 cc. ,, .. ..
..
3
6 + + -
+ - + + + IV B. 115.
7 + + + - - + + - III
?
..
..
.. Class I, nil.
8 + + + - - + - +
I I I B. 73 . . . .
, , I I .5
•
(c) Fœcal bacilli in 1 cc. and upwards.
9 + + + - - + - + III Do.
..
.. (Mixture of 3)
10 + + -
- - + - +
I V B. Cloacæ ..
.. Class III, 1.
Undetermined 4.
REPORT.
The condition of flood noted on the last occasion having subsided, we find that the evidences of extensive
pollution of the water are not so marked in the unfiltered water. Having said so much however there remains
nothing else of good to be recorded on this occasion. We have the same evidence that the filters are foul and
render the water more impure after it has passed through them. The water taken from the distributary system
leaves much to be desired. High total counts and large numbers and many species of fœcal germs indicate a
dirty state of the pipes if nothing worse.
Chemically the samples all give results which are quite remarkably similar to those obtained on the last
occasion. The water from the well on the west side of the head works is definitely hard, but in other respects
the chemical examination shows that this and the other samples are quite satisfactory.
1 9 9
Chemical Analyses.
SAMPLE No. I.
SAMPLE No. II
Physical
appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
None.
None.
Smell.
QUANTITATIVE.
Total solids
..
..
..
.. Parts per 100,000
..
24.200
46.800
Temporary hardness
..
..
..
Do.
..
12.000
23.500
Permanent hardness
. . .
Do.
1.000
0.500
Total hardness ..
..
..
..
Do.
13
24.000
Chlorine ..
..
..
..
..
Do.
. .
1.065
1.775
Ammoniacal Nitrogen ..
..
..
Do.
. . .
Trace.
0 003
Albuminoid Nitrogen ..
..
..
Do... Trace.
Trace.
Oxygen absorbed (Tidy's Process)
..
Do...
0 . 0 0 8
0.008
Nitric Nitrogen
..
..
..
Do.
..
0.035
0.060
QUALITATIVE.
Nitrites ..
..
..
..
..
..
..
. .
Nil.
Nil.
Sulphates
..
..
..
..
..
..
..
. .
Present.
Present.
Phosphates
..
..
..
..
. . .. .. ..
N i l .
Nil.
Iron, poisonous metals
..
..
..
. .
Nil.
Nil, Nil.
SAMPLE No. V.
QUANTITATIVE.
Total solids
..
.
..
• .
Parts per 100,000
..
37.600
T e m p o r a r y h a r d n e s s . . . . . .
Do.
19.500
Permanent hardness ..
..
..
Do...
0 . 5 0 0
Total hardness ..
..
...
Do.
20.000
Chlorine
.. ..
..
..
Do.
1.697
Ammoniacal Nitrogen
• •
..
Do.
0.001
Albuminoid Nitrogen
. . ..
Do...
Oxygen absorbed (Tidy's Process)
..
Do. ..
0.011
Nitric Nitrogen
.. ..
..
Do.
..
0.045
QUALITATIVE.
Nitrites
. . . . . . . . . . . .
Nil.
S Sulphates
• •
..
• •
..
..
..
..
..
Present.
Phosphates
..
..
..
..
..
..
..
..
Nil.
Iron, poisonous metals..
.. ..
..
..
.. Nil, Nil.
201
SAMPLE V.—FOUNTAIN No. 12, SOUTHERN MOST C O N N E R I N O L D
MADRAS ROAD.
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 .
D u l o i t e .
I n u l i n .
V o g a s a n d P r o s k .
I n d o l . M o t i l i t y .
G r o u p .
Bacillus
Group and
Remarks.
(a) Total colonies per cc. on agar at 37°-—4,800.
(b) Bile salt lactose, medium.
+
—
1 tube 20 cc. of water taken
1
..
1 + – – — — + —
I B. Vesiculosus
Group I, 6.
2 +
—
– – – + – I
2 tubes 10 cc.
,...
2
Do.
..
3 + — – – – + – I
3,,„ 5 cc.
, , . . . .
3
. .
Do.
II, sail.
4 + — – – – + – I
III, nit.
3,,
1 cc.
, , . . . .
3
. .
Do.
..
5 + + – + – – – IV
„
„ IV, 4.
3,,„ .1 cc.
, , . . . .
3
. .
B. Lactis ærogenes ..
3,, .01 cc.
,, .. ..
3 3
6 + + –
+++ + – – IV
Class I, nil.
Do.
..
7 +
+ – + + + – – IV
Do.
..
II, 4.
(c) Fœcal bacilli in .1 upwards.
8 +
+ – + + – – I V
, , I I I , 6
Do
..
9 + — — – – – – I B. Mutabilis.
Undetermined
10 +— — — — +
–
I B. Vesiculosus... nil.
REPORT.
This water is evidently derived from a gathering ground that is very far from ideal as it shows a huge
total count and evidence of extensive if not very recent pollution. There are a hundred Fœcal germs to the
cc. and a great number of varieties present. The filtration of the water has exerted no influence on
it whatever. It is probable that the filters are quite inefficient or are worked in an improper manner. The
water drawn from - the several parts of the distributary system is considerably better than that at the head
works but still leaves much to be desired.
Chemically the water contains a considerable quantity of soluble sulphate, but otherwise is quite fair.
202
Chemical Analyses.
SAMPLE No. II.
SAMPLE No. V.
Physical
appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ..
..
..
..
Parts per 100,000.
57.200
5 8 . 4 0 0
Temporary hardness
..
..
Do.
15.500
15.500
Permanent hardness
.... ..
Do.
0.500
0.500
Total hardness
..
..
..
Do.
16.000
16.000
Chlorine ..
..
..
Do.
2 . 4 8 5
2 . 4 8 5
Ammoniacal Nitrogen ..
..
Do.
0.003
0.004
Albuminoid Nitrogen
..
..
Do.
Trace.
Trace.
Oxygen absorbed ( Tidy's Process)..
Do.
0.007
0.007
Do.
0 . 1 2 5
0.125
Nitric Nitrogen ..
..
..
QUALITATIVE.
Nitrites ..
..
..
..
..
... .. ..
Nil.
Nil.
Sulphates ..
..
..
..
..
••
..
Present.
Present.
Phosphates
..
..
..
.•
.
..
.
..
..
i
Nil.
Nil.
Iron, poisonous metals ..
..
..
Ni l , Ni l .
N i l , N i l .
203
VELLORE.
SAMPLES TAKEN-1ST DECEMBER 1909.
R E M A R K S . — T h e s u p p l y i s c o n s t a n t . T h e t a n k c o n t a i n s a b o u t 2 5 f e e t w a t e r . T h e r e h a s b e e n a b o u t 4 3 . 1 4 i n c h e s o f r a i n s i n c e l a s t
analysis.
Bacteriological Analyses.
SAMPLE I.—FROM TANK OR RESERVOIR (UNFILTERED WATER)
C o l o n y n u m b e r .
Lact ose.
S a c c h a r o s e .
Dul ci t e.
Ad o n i t e .
I nul i n.
V o g e s a n d P r o s k .
I ndol .
Mo t i l i t y .
G r o u p .
Bacillus.
Group and
Remarks.
( a ) Total colonies per cc. on agar at 37º—1,210.
( b) Bile salt lactose, medium.
+
-
1 tube 20 cc. of water taken..
..
..
..
1
2 tubes 10 cc.
, ,
. .
. .
..
. .
2
1
3
,,
5 cc.
,,
.. ..
1
2
2
3
„
1cc.
,,
..
..
..
3
3
3
,,
.1 cc.
,,
..
..
...
..
3
4
3
„ .01 cc.
, ,
..
. .
3
5
6
( c ) Fœcal bacilli in 60 cc. and upwards.
7
8
9
No lactose fermenters could be isolated from the single 5cc. ube. 10
SAMPLE II.—FIRST TAP AFTER FILTRATION.
(a ) Total colonies per cc. on agar at 37°—3,210.
(b) Bile salt lactose, medium.
1 + + - + - - - - IV B. Gasoformans
.. Group
I, n i l .
2 + + - + - - - -
IV
Do.
..
, , II, nil.
+
-
3
+ + -
+ - - - -
IV
Do.
..
, ,
III, nil .
1 tube 20 cc. of water taken
. .
1
4
+ + - + - - - - IV
Do.
..
, ,
IV, 10.
2 tubes 10 cc.
,,
..
1
1
5 + + - + - - - - IV
Do.
..
3
,,
5 cc.
,,
..
..
1
2
6 + + -
+
- - - - IV
Do.
..
3
,,
1 cc.
,,
. .
..
. .
3
7 + +
- + - - - - IV
Do
.. Class
I, nil.
3
,,
.1 cc.
,,
..
..
. .
3
8 + +
- + - - - -
IV Do.
..
„ II, 10.
3
,, .01 cc.
,,
..
. .
3
9 + + - + - - - - IV
Do.
..
„ III, nil.
(c) Fœcal bacilli in 30 cc. and upwards.
10 + +
- +
-
-
- - IV
D o .
SAMPLE III.—A TAP AT SAIDAPET THE MOST EASTERN CORNER.
1
2
(a) Total colonies per cc. on agar at 37º—Could not be counted.
3
4
(b) Bile salt lactose, medium.
5
6
+
-
7
1 tube 20 cc. of water taken ..
..
..
1
8
2 tubes 10 cc.
„
. .
..
. .
2
9
,,
5 cc.
,,
..
..
..
3
10
3 „
1 cc.
.,
. .
..
3
3 ,,
.1 cc.
,,
..
..
..
3
3 ,, .01 cc.
, ,
. .
. .
. .
3
( c ) No fœcal bacilli in 60 cc.
SAMPLE IV.—A TAP NEAR THE VELLORE CANTONMENT RAILWAY
STATION COMPOUND WESTERNMOST CORNER.
1 +
-- -
- - ++
I B. Grunthal
.. Group I, 8.
2 + - - -
- - ++
I
Do.
..
,,
II, n i l .
3 + - - -
- - +-
I B. Vesiculosus
..
, ,
III, nil.
(a) Total colonies per cc. on agar at 37º—1,720.
4 + - - -
- - +-
I
Do.
..
,, IV, 2.
5 + - - -
- - ++
I B. Grunthal.
..
. . . .
6 + - -
- - - ++
I
Do.
.. Class I, nil..
(b) Bile salt lactose, medium
+
- 7 + - - -
- - ++
I
Do.
..
, ,II, 2.
8 + + - -
- - ++ IV B. 106.
..
, ,
III, 8.
1 tube 20 cc. of water taken
..
..
1
. . 9 + + - -
- - +-
I V B. Coscoroba.
..
2 tubes 10 cc.
,,
. .
..
. .
2 10 + - - -
- - +-
I B. Vesiculosus.
..
3
, ,
5
cc.
,,
. .
. .
1
2
3
, ,
1 c c .
, ,
. .
. .
. .
3
3
.1 cc.
,,
..
. .
..
3
3
„ .01 cc.
, ,
. .
..
. .
3
( c) Fœcal bacilli in .20 cc. and upwards.
204
Chemical Analyses.
SAMPLE No. I.
SAMPLE No. III.
Physical
appearances.
Colour and
Transparency.
Yellowish and hazy.
Colourless and clear.
Smell.
None.
None
QUANTITATIVE.
Total solids
..
..
..
Parts per 100,000
..
22.800
21.400
T e m p o r a r y h a r d n e s s . . . . . .
Do.
..
9.500
8 . 5 0 0
Permanent hardness
..
..
..
Do.
..
1.500
1.500
Total hardness ..
..
..
..
Do.
..
1 1 . 0 0 0
1 0 . 0 0 0
Chlorine ..
..
..
. . ..
Do.
..
1.065
1.065
Ammoniacal nitrogen ..
..
..
Do.
..
0 . 0 0 6
Trace.
Albuminoid nitrogen ..
..
..
Do.
..
0 . 0 1 7
0 . 0 0 3
Oxygen absorbed ( Tidy's Process) ..
Do .
..
0.093
0.040
Nitric nitrogen
..
..
..
Do .
..
Trace.
Trace.
QUALITATIVE.
Nitrites ..
..
..
. . . .
. . . .. ..
Nil
Nil.
Sulphates..
. . . . . .
. . . . . - .
P r e s e n t
Present
Phosphates
..
..
..
..
..
..
..
..
Nil.
Nil.
Iron poisonous metals
..
..
..
.
. . - . - ..
Nil, Nil
Nil, Nil
REPORT.
Considered in relation to the possible presence of pollution derived from the dejecta of
men or other animals, the results obtained on analysis of the Vellore water-supply on this
occasion are extremely satisfactory, and the water must be classed as very good indeed. The
unfiltered water from the tank shows no lactose fermenters in less than 60 cc. of water.
Bacteriologically the water is not improved by filtration though the filtered water is still quite
good as regards the number of lactose fermenters. There is, however, a very marked rise in the
total count which is increased to an even greater extent in the water drawn from a tap in
Saidapet. This shows that the post filtration passages are dirty and that the pipes would be
the better of being scoured out. The sample drawn from a tap in the westernmost corner of
the Cantonment station compound, though still good, is the least satisfactory of the four. In
this sample there were fœcal germs in 20 cc., and though these were in themselves
unobjectionable, there were too many species represented.
Chemically the water is very fair, but the unfiltered water shows too high a figure for
albuminoid nitrogen. The ratio of this figure to oxygen absorbed also suggests that the
organic matter present is of an animal rather than a vegetable nature. The small number of
lactose fermenters present in the water excludes the idea of this animal matter being of
intestinal origin. It may be present in the form of minute animal organisms, and colour is
lent to this view from the fact that in this respect the water is markedly improved by
filtration.
206
Chemical Analyses.
SAMPLE No. I.
SAMPLE No. IV.
Physical
appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ..
. . . . . . Parts per100,000 ..
4 0 . 4 0 0
43.000
Temporary hardness
..
..
Do.
15.500
16.500
Permanent hardness
..
. . . .
Do.
0.500
0.500
Total hardness
..
..
Do.
16.000
17.000
Chlorine
D o .
3.195
3 . 1 9 5
Ammoniacal Nitrogen
..
..
..
Do.
0.003
Trace.
Albuminoid Nitrogen
..
Do.
0 . 0 0 3
0.003
Oxygen absorbed ( Tidy's Process)
Do.
0 . 0 2 7
0.020
Nitric Nitrogen
..
..
..
..
Do.
..
0.125
0.100
QUALITATIVE.
Nitrites ..
..
.. .. .. .. .. ..
Nil.
Nil.
Sulphates
.. .. .. .. .. ..
Present.
Present.
Phosphates
.. .. .. .. .. .. .. ..
Nil.
Nil.
Iron, poisonous metals ..
..
..
..
..
..
..
Nil, Nil.
Nil, Nil.
REPORT.
With lactose fermenters present in 15 cc. and upwards and these practically represented
by a single species, the water drawn from the suction well can be held to be in a quite satis-
factory condition. It is far otherwise with the water in the storage reservoir which shows signs
of extensive if not very recent pollution with animal matter. There are five hundred times as
many fœcal germs in the water of the reservoir than were found in the water of the suction well,
so it is obvious that pollution of a most undesirable, and what might at any time become
dangerous nature is getting access to the water. There is nothing in the Chemical constitution
of the water to encourage the belief that these germs are multiplying in the water from the few
introduced with the water from the suction well ; they are getting in from badly kept surround-
ings or with polluted sub-soil water leaking into the reservoir.
The samples taken from the distributary system show considerable improvement, but do not
attain to such a good state as the water as drawn from the suction well.
Chemically there is not much about the water to note. The total solids are considerable in
amount and consists mainly of soluble sulphates.
208
SAMPLE V.—A TAP ADJOINING THE YEMBERUMAL TEMPLE.
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 .
D u l c i t e . 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 .
I n d o l . M o t i l i t y .
G r o u p .
Bacillus.
G r o u p a n d
Remarks.
(a) Total colonies per cc. on agar at 37°—One.
large colony occupying the whole plate.
+
-
( b) Bile salt lactose, medium.
1 + - - - -
- + - I B. Vesiculosus . . Group I, 8.
2 + - - - -
- + - I
Do.
..
„ II, nil.
1 tube 20 cc. of water taken ..
..
..
1
..
3 + + - - -
- + - IV B. Coscoroba
..
,, III, n i l .
2 tubes 10 cc.
..
..
2
.
4 + - - - -
- + - I B. Vesiculosus
..
,, IV, 2.
3 ,, 5 cc. ,, ..
3
..
5 + - - - -
- + - I
Do.
.. Class I, nil.
3 „
1 cc.
,,
. .
3
6 + - - - -
- + - I.
Do.
. .
,, II, 2.
3 „ .1 cc. ,, ..
. .
3
7 + - - - -
- + - I
Do.
..
„ III, 8.
3 „ .01 cc. ,, .. ..
. .
3
8 + - - - -
- + - I
D o .
9 + - - - - - + - I
Do.
(c) Fœcal bacilli in 5 cc. and upwards.
10 + + - - - - + - IV B. Coscoroba.
REPORT.
In most respects the condition of the water on this occasion is very like that shown last quarter. The
majority of the samples yield very high total counts, but only a few of these are of excremental origin, and they
belong to the less objectionable classes. The filtered water shows a greatly reduced total count but there are too
many species among the fœcal germs present. The water from the distributary system is better on the whole
this time but the total counts are too high.
Chemically the water is very fair indeed. The unfiltered water contains too much organic matter, some of
which is of animal origin but it appears to be mainly in suspension as it is almost entirely removed by filtration.
SAMPLE No. I.
SAMPLE No. IV.
209
Chemical Analyses.
Physical
appearances.
Colour and
Transparency
Yellowish and opaque.
Yellowish and opaque.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
29.000
16.200
Temporary hardness
Do.
4.000
4.500
Permanent hardness
Do.
1. 500
1.500
Total hardness
Do.
5.500
6.000
Chlorine
Do.
1.065
1.065
Ammoniacal Nitrogen
Do.
0.003
0.003
Albuminoid Nitrogen
Do.
0.012
Trace.
Oxygen absorbed ( Tidy's P r o c e s s )
Do.
0.106
0.020
Nitrie Nitrogen
Do.
Nil.
Nil.
QUALITATIVE.
Nil.
Present.
Nil.
Nil, Nil.
Nil.
Present.
Nil.
Nil, Nil.
Nitrites
Sulphates
Phosphates
Iron, poisonous metals
210
KURNOOL.
SAMPLES TAKEN-15TH DECEMBER 1909.
REMARKS,—The Cuddapah-Kurnool Canal is partially flooded. The supply is intermittent. There has been about 2 . 07 inches of rain
since last analysis.
Bacteriological Analyses.
SAMPLE I.—CUDDAPAH-KUR NOOL CANAL.
(a) Total colonies per cc. on agar at 37°—1,320
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.
Adoni t e. Inul i n.
V o g e s a n d P r o s k .
Indol.
Mot i l i t y. G r o u p .
Bacilli.
Group and
Remarks.
(b) Bile salt lactose, medium.
+
-
1 tube 20 cc.
of
water taken
1
1
+ + - + - + - - IV B. Lactis ærogenes. Group I, 1.
2 tubes 10 cc.
"
2
2 + + - + - + - - IV
Do
"
II, nil.
3 " 5 cc.
"
3
3 + + - + - + - - IV
Do.
" III, nil.
3 "
1 cc.
"
.
3
4 + + - - - + - - IV
Do.
" 1V, 9
3 „ 1 cc.
"
3
.. 5 + - - - - - + -
I B. Vesiculosus.
3 „ 01 cc.
"
3
6 + + - + - + - - IV B. Lactis aarogenes. Class I, nil.
7 + + - + - + - - IV
Do
"
II, 9.
8 + + - + - + - - IV
Do.
" III, 1.
(c ) Fcecal bacilli in 01 cc. and upwards.
9 + + - + - + - - IV
Do.
10 + + - + -
+ - - IV
Do.
SAMPLE IL—SETTLING TANIC (NORTHERN).
(a ) Total colonies per cc. on agar at 37°—1,760.
(b) Bile salt lactose, medium.
+
-
1 + + - + - + - - IV B. Lactis ærogenes. Group 1, nil.
2 + + - + - + - - IV
Do.
" 11, nil.
3 + + - + - + - - IV
Do.
" 111, 5.
4 + + + + - + - - III B. 67
" I V, 5.
1 tube 20 cc. of water taken
1
..
5 + + - + - + - - IV B. Lactis ærogenes. Class T, nil.
2 tubes 10 cc.
"
2
..
6 ++ + + - + - - III B. 67
"
II, 10.
3 " 5 cc. "
3
..
7 + + + + - + - - III B. 67
" III, nil
3 " 1 cc.
"
3
..
8 + + + + - + - - III B. 67.
3 "
1 cc. "
3
..
9 + + - + - + - - IV B. Lactis ærogenes.
3 " 01 cc.
"
3
..
10 ++ + + - + - - III B. 67.
(a) Fœcal bacilli in 01 cc. and upwards.
SAMPLE III.—SETTLING TANK (SOUTHERN).
1 + + - + - + - - IV B. Lactis ærogenes. Group 1, nil.
(a) Total colonies per cc. on agar at 37°—
Countless.
(b) Bile salt lactose, medium.
+ -
2 + + + - - + - - III B. 75
11 nil.
3 + + - + - + - - IV B. Lactis ærogens.
" III, 6.
4 + ++ - - + - - III B. 75
" IV 4.
1 tube 20 cc. of water taken
1
..
5 + + - + - + - - IV B. Lactis æro genes. Class I, nil.
2 tubes 10 cc
"
2
..
6 + + + - - + - - III B. 75
..
.. " II, 6.
3 „
5 cc.
"
3
..
7 + + + + - + - - III B. 67
" III, 6.
3
1 cc.
"
3
..
8 + + + + - + - - III B. 67
Undetermined 1,
3 "
1 cc. "
3
..
9 + + - - - + - -
IV B. 112.
3 " 01 cc.
"
3
..
10 + + + + - + - - III B. 67
Mixture of 4
kind.
(c) Foal bacilli in 01 cc. and upwards.
SAMPLE IV.—FILTERED WATER.
(a) Total colonies per cc. on agar at 37°— 620.
( b) Bile salt lactose, medium.
+
-
1 + + - - - + - -
III B. 75.
2 + + - + - + - -
IV E. Lactis ærogenes. Group 1, 1.
3 + + - - - + - -
IV B. 112
,, II, nil.
4 + + - + - - - -
IV B. Gasoformans
" III, 3.
1 tube 20 cc. of water taken
1
..
5 + + - + - + - -
IV B. Lactis ærogenes.
" IV, 6.
2 tubes 10 cc.
"
2
..
6 + - - - - - + -
I B. Vesiculosus
Class I, nil.
3 " 5 cc.
"
3
..
7 + + + + - + + -
III B. 76
" II, 6.
3 "
1 co. "
3
..
8 + + - - - + - -
IV B. 112
" III, 2.
3 " 1 cc.
",
3
..
9 + + + + - + - -
III B. 67
Undetermined, 2.
3 " 01 cc.
"
3
..
10 + + -
+ - + - -
IV B. Lactis ærogenes. (Mixture of 3
kinds.)
(c) Fæeal bacilli in .01 co. and upwards.
212
Chemical Analyses.
.SAMPLE NO. I.
SAMPLE NO. II
Physical
appearances.
Colour and
Transparency.
White and opaque.
White and opaque.
Smell.
None.
None.
Q U A N T I T A T I V E .
Total solids
..
..
..
.
Parts per 100,000 ..
16.400
13.000
Temporary hardness
..
..
..
Do.
..
4.000
4.000
Permanent hardness
..
..
..
Do.
2.000
2.000
Total hardness
..
..
Do... 6.000
6.000
Chlorine
Do... 1.242
1.065
Ammoniacal Nitrogen ..
.
..
Do
0.005
0.002
Albuminoid Nitrogen ..
..
..
Do... 0.002
0.003
Oxygen absorbed (Tidy's Process)
..
Do... 0.040
0.029
Nitric Nitrogen
Do.
Nil.
Nil.
Q U A L I T A T I V E .
Nitrites
..
..
..
..
..
..
..
..
Nil.
Nil.
Sulphates
..
..
..
..
..
..
..
..
Present.
Present.
Phosphates
..
..
00
.
.
.
.
.
Nil.
Nil.
Iron, poisonous metals ..
..
..
..
..
..
..
Nil.
Nil.
SAMPLE No. III.
SAMPLE No. VI.
Q U A N T I T A T I V E .
Total solids
..
..
..
..
Parts per 100,000 .
12.400
13.000
Temporary hardness
..
Do.
..
4.000
4.000
Permanent hardness
..
..
Do..
2.000
2.000
Total hardness
..
..
..
..
Do.
..
6.000
6.000
Chlorine
..
..
OA
..
Do.
..
1.065
1.065
Ammoniacal Nitrogen ..
..
..
Do.
..
0.002
0.003
Albuminoid Nitrogen
.
..
Do.
..
0.004
0.003
Oxygen absorbed (Tidy's Process)
Do.
..
0.035
0.010
Nitric Nitrogen ..
..
..
Do.
Nil.
Nil.
Q U A L I T A T I V E .
Nitrites.. .
..
•
• •
..
..
Nil.
Nil.
Sulphates
..
..
..
..
..
..
..
..
Present.
Present.
Phosphates
..
..
..
..
..
..
..
Nil.
Nil.
Iron, poisonous metals ..
..
..
..
.
..
..
Nil.
Nil.
214
Table showing the quantity of pollution in each sample.
Name of town supply.
Unfiltered or natural waters.
Filtered. waters.
Water taken from pipes,
Total
colonies
per cc.
on
agar at
37° c
Lactose
fermenters in T r u e c o l i c o m .
Total
colonies
per cc.
on
agar at
37° c.
Lactose
fermenters in T r u e c o l i c o m .
Total
colonies
per cc.
on
agar at
37° c.
Lactose
fermenters in
T r u e c o l i c o m .
20 c c .
10 cc. 5 cc.
1 cc.
. 1 cc. . 0 1 c c .
20 cc. 1 0 c c . 5 cc. 1 cc. . 1 c c . . 01 cc.
20 cc. 10 c c . 5 c c . 1 cc. . 1 c c . . 0 1 c c .
Canal
Cocanada
Stored
110
+ + + + - - +
4,310
+ + + + - - -
2,800
+ + + + + +-
52 + +++ - - - -
260
+ + + + - - -
Conjeeveram
330
+ + + + - - -
220 + + - - - - -
1,600+ + - - - - -
1,040 + - - +- - - -
Gudiyáttam
1,620 + + + - - - -
1,620 + + + - - - - †
+ + + ++- - -
550 + + + + + + -
520 + + + - - - -
Kurnool
1,320 + + + + + + -
620 + + + + + + -
840 + + + + + +-
1,760 + + + + + + -
1,190 + + + + + +-
Countless. + + + + + + -
2,100 + + + +++ +-
2,520 + + + + + + -
1,260 + + + + - - -
1,890 + + + + + +-
Madura
4,310 + + + + - - -
Countless. + + + + - - - Countless. + + + + + + -
430 + + + - - - -
Nellore
620 + + + - - - -
Tanjore
†
+ + + + - - - † †
+ - - - - - -
960 + - - - - - -
78 + + + - - - -
Trichinopoly
Countless. + + + + - - -
3,780 + + + - - - - † †
+ + + + - - -
† †
+ + + + - - -
Tirupati *
1,230 + + + + + - -
4,680 + + + + + + -
2,360 + + + + + +-
Countless. + + + + + - -
1,480 + + + + + - -
Average
4,079 + + + + + - -
3,004 + + + + - - -
1,398 + + + + - - -
Adóni
Countless. +
- - - - - - †
- - - - - - -
1,890 - - - - - - -
†
+ - - - - - -
Coonoor
60 + + + + + - -
510 + + + + + ++
50 + + + - - - -
1,890 + + + + + - -
Madras
4,410 + + + + - - -
1,890 + + + - - - -
Countless. + + + + - - -
Countless. + + + - - - -
† †
+ + + - - - -
60
+ - - - - - -
Countless. + + + + + - -
Countless+ + + + - - -
250 + + + + + - -
40
+ - - - - - -
†
- - - - - - - -
Ootacamund
260 + + + + - - -
Countless. + + + + + + -
110 + + + + + -
†
+ + + + - - -
1,210 - - - - - - -
3,210 - - - - - - - †
- - - - - - -
Vellore
1,720 + - - - - - -
†
+ + + + - - -
470 + + + - - - - Countless + + + - - - -
Vizagapatam
t
+1+1++ -1 -
†
+ + + - - - -
Average
3,458 + + + +
- -
4,560 + - -
-
- - -
4,034 +
+ + - - -I- - -
Adóni (spring)
120
- - - - - - -
-- --
Cuddapah
780 + + + - - - - †
+ + - - - - -
1,260 + + + - - - -
2,860 + + +- - - -
Dindigul
Countless. ++ + + + - +
3,150 + + + + + - - Countless. + + + + + - -
252 + + + - - - -
Guntúr
3,150 + + + + + + -
2,520 + + + + + + - †
+ + + + + - -
†
+ + + + + - -
4,800+ + + + + - -
Average
3,513 + + + + + - 1/4
2,835 + +
+ + + - -
3,835 + + + + + - -
• These waters are well waters in the bed of a river.
For the purposes of averages " countless " is taken to be 10,000.
† Signifies not determined."
The various quantities of the sample that showed the presence of fœcal bacilli are marked. + ; those from which those organisms
were absent, are marked —.