NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
134
ADÓNI.
WATER SAMPLES TAKEN—26TH JULY 1910.
Remarks—The tank now contains about 3½ inches of water. The supply is intermittent. There has been about
4·23 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—From THE SPRING.
NumberLactoseSacchar oseDul ci t eAdoniteInulinV 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° C.—640.
Bile salt lactose, medium.
+ −
1 tube of 20 cc. of water taken
1
1
+ − − − − − + +
I B. Grunthal.
2 tubes of 10 cc.
2
2 + − − − − − + +
I
Do.
Group I, 7.
3 „ 5 cc.
3
3 + − − − − − + +
I
Do.
,, II, nil,
3 „ 1 cc.
3
4 + − − − − − + + I
Do.
„ III, 2.
3 „ ·1 cc.
3
5 + − − − − − + +
I
Do.
„ IV, 1.
3 „ ·01 cc.
2
1
6 + + + + − − + +
I I I
?
Fœcal bacilli in ·04 cc. and upwards.
7 + + + + − − + + III
?
8 + − − − − − + +
I B. Grunthal
Class I, nil.
9 + + − − − − − +
I V B.109.
„ II, nil.
No vibrios in 100 cc.
10 + − − − − − + + II B. Grunthal
„ III, 8.
Undetermined, 2
SAMPLE II.—FROM THE TANK.
1 + − − − − − + −
I B. Vesiculosus.
Total colonies per cc. on agar at 37° C.—Countless.
2 + − − − − − + +
I B. Grunthal
Group I, 6.
3
+ − + − − − + + II B. Coli Communis
II, 2.
Bile salt lactose, medium.
+
−
4 + + + − − − + −
I I I B. Neapolitanus
„III, 2,
5 + − + − − − + −
I I B. Schæfferi
IV, nil.
6 + − − − − − + +
I B. Grunthal
1 tube of 20 cc. of water taken
1
7
+ + + − − − + + III B. 71.
2 tubes of 10 cc. „
2
8 + − − + − − + +
I B. 1
Class I, 2.
3 „ 5 cc. „
3
9 + − − − − − + +
I B. Grunthal
„ II, 3.
3 „ 1 c c . „
3
10 + − − − − − + −
I B. Vesiculosus
,, III, 5.
3 „ ·1 cc. „
3
3 „ ·01cc. „
3
Fœcal bacilli in ·10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FROM FILTER RESERVOIR—FILTERED WATER.
1 + + − + − + − − IV B. Lactis ærogenes.
Total colonies per cc. on agar at 37° C.—5,670.
2 + + − + − + − − IV
Do.
Group 1, 2.
3 + + − + − + + − IV B. 116
„ II, nil.
Bile salt lactose, medium.
+
−
4 + + − − − + − − IV B. 112
„ III, nil.
5 + + − − − + − + IV A. Clouoæ
„ IV, 8.
6 + + − − − + − −
IV B. 112.
1 tube of 20 cc, of water taken
1
7 + + − − − + − − IV
Do.
2 tubes of 10 cc. „
2
8 + + − + − − − − IV B. Gasoformans
Class I, nil.
3 „ 5 cc. „
3
9 + − − + − − + −
I B. Acid Lactici
„ II, 5.
3 „ 1 cc. „
3
10 + − − + − − + −
I
Do.
„ III, 1
3 „ ·1 cc. „
3
Undetermined, 4.
3 „ ·01 cc. „
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100
cc.
SAMPLE IV.—FROM A TAP—WESTERN CORNER IN KILCHUPET
ROAD.
1 + + − − − + + + IV B. 106.
Total colonies per cc. on agar at 37° C.—4,820.
2 + + + − − − + − III B. Neapolitanus
Group I, nil.
3 + + − − − + − + IV B. Cloacæ
„ II, nil,
4 + + + + − − + − III B. 66
„ III, 4.
Bile salt lactose, medium.
+ −
5 + + − + − + − − IV B. Lactis ærogenes.
„ IV, 6.
6 + + − − − + + + IV B. 113.
7 + + − − − + − − IV B. Lactis ærogenes.
1 tube of 20 cc. of water taken
1
8 + + − − − + − + IV B. Cloacæ
Class I, nil.
2 tubes of 10 cc. „
2
9 + + + + − − + −
III B. 66.
,, II, 7.
3 „ 5 cc.
3
10 + + + − − − + − III B. Neapolitanus
„ III, 2.
3 „ 1 cc.
3
Undetermined, I.
3 „ ·1 cc.
3
3 „ ·01 cc.
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE II.
SAMPLE IV.
135
REP0RT.
The water-supply of Adóni is subject to very great variations as to quality, and on the present occasion
is about as bad as it could be. The water of the spring is the best though that is not saying much, seeing
that it contains a hundred fœcal germs to the cc. These all belong to the resistant classes, however, so the
spring is not so objectionably polluted as in the tank. Here we have a huge total count, a hundred fœcal
germs to the cc., and B. Coli Comiuunis, the type species of recent dangerous pollution, present and a very
great variety in species to indicate the extent of the pollution. The filtered water is hardly any better, and
but for being called filtered, no one would suppose that it had been. It is very like the next sample ; huge
total counts and a most undesirable variety among the fœcal germs of which there are a hundred to the cc.
Chemically the water is much as usual and that is bad. The high amounts of total solids and of organic
m
atter of animal origin are probably accountable for the bacterial impurity of the water. Filtration would
have
appeared to have exercised a greater effect chemically than bacteriologically, which is quite exceptional.
B o t h t h e t o t a l s o l i d s a n d t h e o r g a n i c m a t t e r a r e c o n s i d e r a b l y r e d u c e d , t h o u g h t h e y a r e s t i l l t o o h i g h .
Possibly the organic matter is present in the form of protozoa.
Chemical Analyses.
Physical appearances.
Colour and
Transparency.
White and opaque.
White and opaque.
Smell.
_
None.
None.
QUANTITATIVE.
Total solids .. .. .. .. .. Parts per 100,000 ..
76.000
36.000
Tem porary hardness .. .. .. ..
Do.
..
2500
9.500
Permanent hardness
.. ..
Do.
2.000
1.000
Total hardness
.. .. .. ..
Do.
4.500
10.500
Chlorine
.. .. .. ..
..
Do.
0.710
1.065
Ammoniacal nitrogen .. .. ..
..
Do.
..
0.03 0
0
.035
Albaminoid nitrogen
.. .. ..
Do.
0 140
0.034
Oxygen absorbed (Tidy's _Process)
Do.
0.556
0.181
Nitric nitrogen
.. .. .. ..
Do.
..
0.037
0
.050
QUALITATIVE.
Nitrites
Nil.
Nil.
.. .. .. ..
. .
Sul phates .. .. .. ..
.. .. .. ..
.. ..
Trace.
Trace.
Phosphates .. . . .. ..
. .
..
..
'
Nil.
Nil.
Iron, poisonous metals .. .. ..
.. ..
..
_. .. .. ..
Nil, nil.
Nil, nil.
136
CUDDAPAH.
WATER SAMPLES TAKEN—27TH JULY 1910.
REMARKS.—The Bugga river is in floods. The supply is intermittent. There has been about 8.69 inches of rain since last anal
ysis.
Bacteriological Analyses.
SAMPLE I.—FROM ABOVE THE INFILTRATION GALLERY.
Col ony numberLact ose.Lactose.Dulcite.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° C.—6,930.
Bile salt lactose, medium
+
−
1 tube of 20 cc. of water taken
1
1 + + + − −
+
− − III B. 75.
2 tubes of 10 cc. 1
,
2
2
+
+ −
+ −
+
− − IV B. Lactie ærogenes. Group 1,
nil.
3 „ 5 cc. „
3
3
+ +
+
+
−
+
− − III B. 67
„ II, n i l .
3 „ 1 cc.„
3
4
+
+ − + − + − − IV B. Lactis ærogenes
„ III, 4,
3 „ ·1 cc.
3
5
+
+
+
− − − + − III B. Neapolitanus
„ IV, 6,
3 „ ·01 cc.
3
6 + + − + − + − − IV B. Lactis ærogenes.
Fœcal bacilli in ·01 cc. and upwards.
7
+ + − + − + − − IV
Do.
Class I, nil.
8
+ +
+
− −
+
− − III B. 75
„ II, 7.
9
+
+ −
+
−
+
− − IV B. Lactis ærogenes.
„ III, 2.
No vibrios in 100 cc.
10 + + − − −
+
− − IV B. 112.
„
Undet er mi ned, 1,
SAMPLE II.—TAP IN HEAD WATER WORKS.
Total colonies per cc. on agar at 37° C.—3,780.
1
+
+ − − − −
+
− IV B. Coscoroba.
2
+
−
+
− − − + −
II B. Schæfferi
Group I 5
3 + − − − − − − −
I B. Mutabilis
„ II,1
Bile salt lactose, medium.
+
−
4
+
− − − − − − −
I
Do.
„ III,3.
5
+
− − + − −
+
−
I B. Acidi lactici
„ IV, 1
6
+
− − − − − + −
I B. Vesiculosus.
1 tube of 20 cc. of water taken
1
7
+
+
+
− − − + − III B. Neapolitanus
Class I, 1.
2 tubes of 10 cc. „
2
8
+
+ +
− − − + − III
Do.
„ II, 4.
3 „ 5 cc. „
3
9
+
− − − − − + −
I B. Vesiculosus
„ III, 5.
3 „ 1 cc. „
3
10
+
+ +
− − + − − III B. 75.
3 „ ·1cc. „
3
3 „ ·01 cc. „
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—TAP IN YERRAMUKKUPALLI.
Total colonies per cc.on agar at 37° C.—250.
1 + +
+ − − −
+
− III B. Neapolitanus
2
+
+ −
+
−
+
+ − IV B. 116
Group I, 3.
3
+
− − − − −
+
−
I B. Vesiculosus
„ II, 1,
4
+ +
− − − −
+
− IV B. Coscoroba
„ III, 3.
Bile salt lactose, medium.
+
−
5
+
−
+
− − −
+
− II B. Schæfferi.
6
+ +
+
+
−
+ + +
III B. 77.
„ IV, 3.
7
+
− − − − −
+
−
I B. Vesiculosus
„ Cl a s s 1 , 1 .
1 tube 20 cc of water taken
of
1
8
+
− − − − −
+ +
I B. Grunthal
„ II, 4
2 tubes of 10 cc. „
2
9
+
+
−
+
−
+
−
+
IV B. 102
„ III, 3.
3 „ 5 cc. „
3
10
+ +
+ + − −
+
−
III B. 66
Undet er mi ned, 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.—TAP PROM NORTHERN CORNER IN GEDDY BAZAAR
ROAD.
Total colonies per cc. on agar at 37° C.—370.
1
+ +
−
+
−
+
−
+
IV B.102.
2
+
− − − − − −
−
I
B. Mutabilis
Group I, 8.
3
+
− − − − −
+ +
I
B. Grunthal
„ II, 1.
Bile salt lactose, medium.
+
−
4 +
− +
− − −
+
−
II B. Schæfferi.
„ III, nil.
5
+
− −
+
− −
+
−
I
B. Acidi lactici.
„ IV, 7.
6
+
− − − − −
+
−
I
B. Vesiculosus
7
+
− − − − −
+
−
I
Do.
1 tube of 20 cc. of water taken
1
8
+
− − − − −
+
−
I
Do.
Class I, 1.
2 tubes of 10 cc. „
2
9
+
− − − − −
+
−
I
B. Mutabilis
„ II, 2.
3 „ 5 cc. „
3
10
+
− − − − −
− −
I
B. Vesiculosus
„ III, 7.
3 „ 1 cc.„
3
3 „ ·1 cc. „
3
3 „ ·01 cc. „
3
Fœcal bacilli in ·01 cc. and upwards.
No vibrios in 100 cc.
137
REPO RT.
On this occasion the Cuddapab water is bacteriologically exceedingly -bad. The flooded state of the
river might account for this, but no such result followed in October 1909 when the river was partially flooded,
and there had been a. great deal of rain. All the sam d les contain one hundred faecal germs to the co., and the
variety of species is remarkable. In sample III there are no less than nine species among the ten colonies'
exam ined. This is a record, and shows how extensive the pollution must have been. Considering the flooded
state of the river the huge total count in the sample taken above the gallery is not surprising, 'but surely
so mething better might have been expected from the suction well. In addition this latter shows the presence
of the susceptible class I which were absent from the raw river water. Another surprising feature is the way
the total count has been reduced in the.samples taken from the distributary system without in any war altering
the number or the objectionable kind of the foetal bacilli. This is precisely the opposite of what has been
found in other cases. Usually it is the foetal germs that undergo the greatest reduction in number.
Chemically although the water is not bad, it is not so good as it has been. The total solids are increased
and though the floods might account for a good deal of matter in suspension, one should have supposed
that passage through the infiltration gallery would have removed this The figure for nitric nitrogen is also
high, and this is quite a new feature in this water.
5.
1,
3.
Chemical Analyses.
1,
SAMPLE I .
SAMPLE 1 V.
4,
5.
r--
Colour and
Transparency.
White and opaque.
White and opaque.
Physical appearances.
Smell.
None.
None.
QUANTITATIVE.
Total solids
..
l.emporary hardness
Permanent hardness
Parts per 100,000
Do.
Do.
16.200
3.000
3.000
16'400
3000
3.000
3.
1.
Total hardness .
Chlorine ..
..
Do..
Do.
6.000
0.887
6.000
0.887
3.
A mmoniaca.1 nitrogen
Do.
. .
Trice.
0.002
Albuminoid nitrogen ..
..
Do.
Tra ce.
0.003
3.
Oxygen absorbed (Tick's Process)
Do.
0.014
0.025
Nitric nitrogen
..
Do
0.100
0.125
3
,
ned,1
QUALITATIVE.
Nitrites .
Nil.
Sulphates
Trace.
Trace.
Phosphates
..
Nil.
Nil.
Iron, poisonous wetals
Nil, nil.
Nit, nil.
8.
I 1.
,
, I.
I 1.
12.
7.
35
I
138
GUNTÚR.
WATER SAMPLES TAKEN—2ND AUGUST 1910.
REMARKS.—The supply is constant. There has been about 14 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.—FROM THE SPRING.
N u m b e r .
Lact ose.Sacchar os e.Dulcite.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
Remarks.
Total colonies per cc. on agar at 37° C.–3,150.
Bile salt lactose, medium
+
−
1 tube of 20 cc.
1
1
+ + +
− −
+
− − III B. 75
Group I, nil.
2 tubes of 10 cc.
2
2
+ + +
− −
+
− − III Do.
„ II, nil.
3 „ 5 cc.
2
1
3
+ + +
− −
+ + +
III B. 78
„ III, 10.
3 „ 1 cc.
3
4 + + +
− −
+ + +
III
Do.
„ IV, nil.
3 „ ·1 cc.
1
2
5
+ + +
− −
+
− −
III
B. 75
3 „ ·01 cc.
3
6
+ + +
− −
+
− − III
Do.
Fœcal bacilli in 1 cc. and upwards.
7
+ + +
− −
+
− − III Do.
Class I, nil.
8
+ + +
− −
+
− −
III
Do.
„ II, nil.
9
+ + +
− −
+
− − III
Do.
,, III, 8.
No vibrios in 100 cc.
10
+ + +
− −
+
− − III Do.
Undetermined,
2.
SAMPLE II.—FILTERED WATER BEFORE IT IS LET INTO MASONRY
CONDUIT.
1
+ +
−
+
−
+
−
+
IV
B. 102
Group I, nil.
Total colonies per cc. on agar at 37° C.–490.
2
+ +
−
+
−
+ + +
IV B. 115
„ II, nil.
3
+ +
−
+
−
+
− − IV B. Lactis ærogenes.
„ III, nil.
Bile salt lactose, medium.
+
−
4
+ +
−
+
−
+
−
+
IV B. 102
„ IV 10.
5
+ +
−
+
−
+
− −
IV
B. Lactis ærogenes.
6
+ +
−
+
−
+ +
− IV
B. 116
1 tube of 21 cc.
1
7
+ +
−
+
−
+
− − IV B. Lactis ærogenes.
2 tubes of 10 cc.
1
1
8
+ +
−
+
−
+ +
− IV B. 116
Class I, nil.
3 „ 5 cc.
1
2
9
+ +
−
+
−
+
− − IV B. Lactis ærogenes.
„ II, 7.
3 „ 1 cc.
3
10
+ +
−
+
−
+
− −
IV
Do.
„ III, nil.
3 „ · 1 c c .
3
Undetermined,
3.
3 ·01 cc.
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FROM THE SERVICE RESERVOIR.
1
+ +
− − −
+
−
+
IV B. Cloacæ
Group I, nil.
Total colonies per cc. on agar at 37° C.–780.
2
+ +
− − −
+
−
+
IV
Do.
„ II, nil.
3
+ +
− − −
+
−
+
IV
Do.
„ III, nil.
4
+ +
− − −
+
−
+
I V
Do.
„ IV, 10.
5
+ +
− − −
+
−
+
IV
Do.
6
+ +
− − −
+
−
+
IV
Do.
Bile salt lactose, medium.
+
−
7
+ +
− − −
+
−
+
IV
Do.
Class I, nil.
8
+ +
− − −
+
−
+
IV
Do.
,, II, nil.
9
+ +
− − −
+
−
+
IV
Do.
„ III, 10
10
+ +
− − −
+
−
+
IV
Do.
1 tube of 21 cc.
1
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 ·1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV. FROM WESTERN END TAP IN FRONT OF
MUSTHAN SAHEB'S LOMB.
1
+ + + +
−
+
− −
III
B. 67
Group I, 1.
Total colonies per cc. on agar at 37° C.–140.
2
+ +
−
+
−
+
− −
IV
B. Lactis ærogenes.
„ II, nil.
3
+ + +
− − −
+
−
III
B. Neapolitanus
„ III, 5.
4
+ + +
− − −
+
−
III
Do.
„ IV, 4.
5
+ +
−
+ +
− −
IV
B. Lactis ærogenes.
Bile salt lactose, medium.
+
−
6
+ + +
− − −
+
−
III
B. Neapolitaus.
7
+ +
− − − −
+
−
IV
B. Coscoroba.
8
+
− − − − −
+
−
I
B. Vesiculosus
Class I, nil.
1 tube of 20 cc.
1
9
+ +
− − − −
+
−
IV
B. Coscoroba
„ II, 9.
2
tube of 10 cc.
2
10
+ + +
− − −
+
−
III
B. Neapolitanus
„ III, 1
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.
139
smaro V.—Peon FOUNTAIN O. 12 —SOUTHERNMOST
OLD MADRAS ROAD.
CORNER IN
a)
S
6
co
0
6 1.4 a)
o
i s
,CS
1;1
Bacillus.
Group and
Remarks.
rotas colonies per cc. on agar at 37'-3,200.
O
•c3
0
CS 7?3 cd
CD
• e-4
-tzs gi
LOA
P"
0
43
• r•I
.74
0
O
Bile salt lactose, medium.
1 tube of 20 cc. of water taken
2 tubes of 10 cc.
1
2
1
2
3
5 cc.
3
3
3
1 cc.
3
4
3
• 1 co.
1
2
5
3
•01 cc.
3
6
7
.il.
postal bacilli in 1 cc. and. upwards.
dl,
8
9
10,
No winoss in 100 cc.
10
+
--f-
f
IV
v
III
IV
III
IV
IV
Iv
IV
13. Cloacae.
Do.
B. Neapolitanus
B. Lactis wrogenes.
B. Neapolitanus
B. Cloacae.
Do.
..
no.
Do.
Do.
Group I, nil.
„
II, nil.
111, 2 .
IV , 8,
Class
I, nil.
„
II, 3.
,, III, 7.
REPORT.
1.
Sample I from the Spring shows a much too high total count. Fortunately only a very few of these
are of excremental origin and these few are of the most , resistant kinds, indicating that a considerable
amount of natural purification has gone on in the water.
Sample II, the filtered water, shows a satisfactory reduction of the faecal germs and of the total count,
'but a much larger number of varieties are present which is not such a good sign.
Sample III is again more like last Spring water, a reduced total count but more faecal germs.
Sample IV is better than the last but shows too great a variety of foetal germs.
Sample V again reverts to the type of the Spring water, and it would be interesting to learn how and
where it has acquired such a huge total count.
Chemically the water is of a type common enough unfortunately in Madras. The total solids are high
and seem to be mainly alkaline sulphate. The figure for oxidised nitrogen is also high, but this indicates
pollution of a past date, and is not in itself harmful. Otherwise the water is good enough.
•
1.
).
Chemical Analyses.
SAMPLE II.
SAMPLE V
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Physical appearances.
Smell.
None.
None.
QUANTITATIVE.
Total solids
..
Parts per 100,000
Temporary hardness
Do,
'ermanent hardness
Do.
Total hardness
..
Do
Chlorine
..
..
Do.
Ammoniacal nitrogen
Do.
Albuminoid nitrogen
..
..
Do.
Oxygen absorbed ( Tidy's Process)
Do.
Nitric nitrogen
..
..
..
Do.
59.600
1,1.500
0 500
15.000
2.130
Trace.
Trace.
0.013
0.150
60.200
15.500
0.500
16.000
2.307
0.003
0.002
0.020
0.150
QUALITATIVE.
Nitrites ..
Sulphates
Phosphates
Iron, poisonous metals
Present.
Nil.
Nil, nil.
Nil.
Present.
Nil.
Nil, nil.
140.
BEZWADA.
WATER SAMPLES TAKEN—3RD AUGUST 1910.
Bacteriological Analyses.
SAMPLE I.—FROM FIRST TAP AFTER SERVICE RESERVOIR.
Number
L a c t o s e
Sacchar oseDulciteAdoni t eInulin V o g e s a n d P r o s k IndolMotilityGroup
Name of Bacilli.
Group a
nd Remarks.
Total colonies per cc. on agar at 37°—170.
Bile salt lactose, medium.
+
−
1 tube of 20 cc. of water taken.
1
1 + + − + − + − −
I V B. Lactic ærogenes.
2 tubes of 10 cc.
1
1
2
+
+ − + − + − − IV
Do.
Group I, nil.
3 „ 5 cc.
2
1
3
+
+ − + − − − − IV B. Gasoformans
„ II, nil.
3 „ 1 cc.
1
2
4
+ +
−
+
− − − − IV
Do.
„ III, nil.
3 „ ·1 cc.
3
5 + + −
+
− − − − IV
Do.
„ IV, 10.
3 „ ·01 cc.
3
6 + + −
+
− − − − IV
Do.
Fœcal bacilli in 5 cc. and upwards.
7
+ +
−
+
− − − − IV
Do.
Class I, nil.
8 + + −
+
− − − − IV
Do.
„ II, 10.
9 + + −
+
− − − − IV
Do.
„ III, nil.
No vibrios in 100 cc.
10 + + −
+
− + − + IV B. 102.
SAMPLE II.—FROM TAP ON THE ELLORE ROAD CLOSE TO TOL
L GATE.
1
+ +
− − − − + − IV B. Coscoroba.
2
+
+ − − − − + − IV
Do.
Group I, 4.
3
+
− − − − − + −
I B Vesiculosus
„ II, nil.
Total colonies per cc. on agar at 37°—2,850.
4
+ +
− − − − + − IV B. Coscoroba.
„ III, nil.
5 + − − − − − + −
I B. Vesiculosus.
„ IV, 6.
6 +
− − − − − + + I B. Grunthal.
Bile salt lactose, medium.
+
−
7 + − − − − − + −
I B. Vesiculosus. Class I, nil.
8 + + − − − − + − IV B. Coscoroba.
„ II, 6.
9 + + − − − − + − IV
Do.
,, III, 4.
1 tube of 20 cc. of water taken.
1
10 + + − − − − + − IV
Do.
2 tubes of 10 cc.
2
3 „ 5 cc.
2
1
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.—FROM TAP NEAR NUZVID TOLL GATE.
1
+
− − − −
−
+ + I B. Grunthal.
2 + − − − − − + + I
Do.
Group I, 10.
3
+
− − − − − + +
I
Do.
„ II, nil.
Total colonies per cc. on agar at 37°—3,840.
4
+
− − − − − +
+
I
Do.
„ III, nil.
5
+
− − − − −
+
+ I
Do.
,, IV,
nil
.
6 + − − − − − + +
I
Do.
Bile salt lactose, medium.
+
−
7 + − − − − −
+ +
I
Do.
Class I, nil.
8
+
− − − − −
+ +
I
Do.
,, II, nil.
9 + − − − − − + + I
Do.
„ III, 10.
1 tube of 20 cc. of water taken.
1
10 + − − − − − − + I
B. 7
2 tubes of 10 cc
2
3 „ 5 cc.
1
2
3 „ 1 cc.
3
3 „ ·1 cc.
3
3 „··01 cc.
3
Fœcal bacilli in 10 cc. and upwards.
No vibrios in 100 cc.
141
REPORT.
The results shown by the Bezwadd water-supply are quite satisfactory, an i much above the average.
With a total count of 170 germs to the cc., and only one in 34 of these of animal origin, and the latter
again represented by only a few species the water of the service reservoir must be classed as distinctly good.
The samples drawn from the distributary system do not show quite such satisfactory results. Sample II shows
a considerable increase in the faecal germs and both show enormously increased total counts. Probably the
iipes would be the better of flushing out.
Chemically the water although tending to hardness is also quite good.
Chemical .Anakses.
SAMPLE I.
SAMPLE III.
r
1.
Colour and
Colourless and
Colourless and
Transparency.
clear.
clear.
Physical appearances.
Siuell.
None.
None.
QUANTITATIVE.
Total solids .
Parts per 100,000
31.000
31.000
Temporary hardness
Do.
14.000
14000
Permanent hardness
•.•
Do.
4.000
4.000
Total hardness
Do.
18.000
18.000
Chlorine
..
Do.
3.195
3.195
Ammoniacal nitrogen
Do.
Trace.
0.002
Albuminoid nitrogen
Do.
Trace.
0.002
Oxygen absorbed (Tidy's _Process)
Do.
0.020
0.0'20
Nitric nitrogen
..
Do.
0.025
0.037
QUALITATIVE.
Nitrites
Nil.
Nil.
Sulphates
Present.
Present.
Phosphates
..
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil nil
0.
a.
0.
36
142
COONOOR.
SAMPLES TAKEN—10TH AUGUST 1910.
REMARKS,—The storage reservoir was full and overflowing. The supply is intermittent. There has been about
16 inches of rain since last analysis.
Bacteriological Analyses.
SAMPLE I.— STORAGE RESERVOIR.
C o l o n y N u m b e r .
Lact ose.Sa c c ha r os e .Dulcite.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° C.
—430.
Bile salt lactose, medium.
+
−
1 tube of 20 cc. of water taken
1
1 + + − − − + − + IV B. Cloaoæ.
2 tubes of 10 cc.
2
2 + + − − − − − − IV B. 111
Group 1, nil.
3,,5 cc.
,,
3
3 +
+
− − − − − − IV
Do.
„ II, nil.
3 „ 1 cc
. „
3
4 + + − − − − − − IV
Do.
„ III, nil.
3 „·1 cc.
„
2
1
5
+
+ − − − − − − IV
Do.
„ IV, 10.
3 „ ·0l cc
„
3
6 +
+
− − − − − − IV
Do.
7
+ +
− − − − − − IV
Do.
Class I, nil.
Fœcal bacilli in. 1 cc. and upwards.
8
+
+ − − − − − − IV
Do.
„ II, nil.
9
+ +
− − − − − − IV
Do.
„ III, 1.
No vibrios in 100 cc.
10
+ +
− − − − −
− IV
Do.
Undetermined, 9.
SAMPLE II—FIRST TAP FROM SERVICE RESERVOIR.
1 + +
− − − −
+
−
IV B. Coscoroba.
Total colonies per cc. on agar at 37° C.
—
Nil.
2 + + − − − −
+ − IV
Do.
Bile salt lactose, medium.
+
−
3 + − − − − − + −
I B. Vesiculosus
Group I, 5.
4 + + − − − −
+ − IV B. Coscoroba
„ II, nil.
5 + − − − − −
+
−
I B. Vesieulosus
„ III, nil.
1 tube of 20 take
cc. of water
1
6 + − − − − − +
−
I
Do.
„ V, 5.
2 tubes of 10 co. „
1
1
7 + − − − − − +
−
I
Do.
3 „ 5 cc..„
2
1
8 + − − − − − +
−
I
Do.
Class I, nil.
3 1 cc. „
3
9 + + − − − −
+
− IV B. Coscoroba
„ II, 5.
3 „·1 cc. „
3
10
+ + − − − −
+
− IV
Do.
„ III,5.
3 „ ·01 cc. „
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
SAMPLE III.—FOUNTAIN IN FRONT OF POST AND TELEGRAPH
OFFICE.
1
+ +
− − − −
+
− IV B. Coscoroba.
2
+ +
− − − −
+
− IV
Do.
Group 1,, nil.
Total colonies per cc. on agar at 37° C.
—
80.
3
+ +
− − − −
+
− IV
Do
„ II, nil.
4
+ +
− − − − − −
IV B. 111
„ III, nil.
Bile salt lactose, medium.
+
−
5
+ +
− − − −
+
− IV B. Coscoroba
„ IV, 10.
6
+ +
− − − −
+
−
IV
Do.
7
+ +
− − − −
+
−
I V
Do.
Class I, nil.
1 tube of 20 cc. of water taken
1
8
+ +
− − − −
+
−
I V
Do.
„ 11, 8.
2 tubes of 10 co.
„
2
9
+ +
− − − − − −
IV B. 111
„ III, nil.
3 „ 5
cc „
3
10
+ +
− − − −
+
−
IV B. Coscoroba
Undetermined, 2
.
3 „1 cc.
„
2
1
3 „·1 cc.
„
2
1
3 „·01 cc.
„
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—FOUNTAIN IN FRONT OF CHOULTRY NEAR
RAILWAY STATION.
1 +
+
−
+
−
+
− − IV B. Latin ærogenes
2 + + − + − + − − IV
Do.
Group I, nil.
Total colonies per cc. on agar at 37° C:− Nil.
3 + +
− +
− + − − IV
Do.
„ II, nil.
Bile salt lactose, medium.
+
−
4
+
+ − + − + − − IV
Do.
„ III, nil.
5
+ +
−
+
− + − − IV
Do.
„ IV, 10.
6 + +
−
+
−
+
−
− IV
Do.
7 +
+ −
+
− + − − IV
Do.
8
+ +
−
+
−
+
− − IV
Do.
Class I, nil.
1 tube of 20 cc. of water taken
1
−
9
+ +
−
+
−
+
− − IV
Do.
„ II 10
2 tubes of 10 cc.
„
2
10 +
+
− + − + − −
IV
Do.
„ III,
nil.
3 „ 5 cc. „
2
1
3 „ 1 cc.
„
2
1
3 „·1 cc.
„
3
3 „·01 cc.
„
3
Fœcal bacilli in ·1 cc. and upwards.
Nov ibrios in 100 cc.