NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
.
Sample I.—Channel at West end of Red Hill Lake.
(a) Total colonies on agar at 37°-78.
(b) Bile salt glucose, medium.
+ —
1 tube 20 cc. of water taken
..
1
• •
. •
• •
2 tubes 10 cc.
..
2 ••
4
„ 5 cc.
..
4
•• ..
5
„
1 cc.
..
5
• •
5 •1 cc.
,, .. 2 3
5
„ • 01 cc.
,,
..
• •
5
(c) Fœcal bacilli H • ace.
•
(d) Sporogenes milk test doubtful in 20 cc.
C o l o n y
N o .
S a c c h e r o r s e .
D u l o i t .
A d o n i t .
I n u l i n .
V o g e s a n d p r o s k
M o b i l i t y .
G r o u p .
B a c i l l u s .
GROUP
R e m a n d
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 — — — + — — + — — + — — — — + +
— —
—
—
—
—
—
—
— —
—
+
—
+ + —
—
—
—
—
—
—
—
—
— — — —
—
— — —
—
—
—
—
—
—
—
— — — —
—
— — —
+ + + + + + + + + + + + + + + + +
+ + + + + + + + + + + + + + + +
IV
IV IV IV IV IV IV IV IV IV IV IV IV IV
IV
B. Cl oacæ.
Do. •
Do.
Do.
Do*
Do.
Do.
Do.
Do.
Do.
Do.
Do.
Do.*
Do.*
Do.*
Group
,, I
II
,, I
Sample IL—Distributary system—A tap near
Cathedral.
(a) Total colonies on agar at 370-630.
(b) Bile salt glucose, medi um + -
1 t ube 20 cc. of wat er t aken . . 1 . . .
2 t ubes 10 cc.
. . 2 . .
4 , , 5 cc. , ,
. . 5 . .
5 , , 1 cc. , ,
. . 2 3
5 , , •1 cc. , ,
. . . . 5
5 , , •01 cc. , ,
. . . . 5
(c) Fœcal bacilli in 3 cc. and upwards.
(d) Sporogenes milk test —
in 20 cc.
1 2 3 4 5 6 7 8 9 1 0
1 2
1 3
1 4
1 5
1 6
— —
—
+ — — + — — + — — — —— + +
— —
—
— — — — — — — + + + — —
— — —
— — — — — — — — — — —— — —
— — — + — — + — — + — — — — — + —
—
— — — — — — — — — — — — —
—
—
— — — — — — — — + — + + + +
I I I IV I I IV I I IV II I II II IV
IV B. Grunthal. *
Do.
Do.
B. Cloacæ.
B. Grunthal. *
Do. Do
13. Cloacæ.*
B. Grunthal.
Do.
B. Cloacæ.
B. Coli, etc.
B. Grunthal.
B. Coli, etc.
Do.
B. Cloacæ.
Sample III.—Sollavaram Channel, Red Hills
(a) Total colonies en agar at 37°--1,008.
(b) Bile salt glucose, medium. + -
1 tube 20 cc. of water taken .. 1 ..
2 tubes 10 cc. ,,
.. 2 ..
4 , , 5 cc. , ,
. . 4 . .
5 , , 1 cc. , ,
. . 3 2
5 , , •1 cc. , ,
. . . . 5
5 , , •01 cc. , ,
. . . . 5
(c) Fœcal bacilli in 1 cc.
(d) Sporogenes milk test —
in 20 cc.
1
2 3 4 5 6 7 8 9 10 11 12
+ + — + + + + +
+
+
+
+
— — — — — —
—
—
—
—
—
—
— — — — — — —
——
—
—
—
—
— — — — — — — —
——
—
+ + + + + — — +
+
—
+
+ +
+ + + + + + + +
+
+
IV
IV I IV IV IV IV IV IV IV IV IV
B. Cloacæ.
Do.
B. Cloacæ.
Do.
Do.*
Do.*
Do-
Do.
Do.*
Do.
Do
Sample IV --Discharging Vent, 19th June 1908
(a) Total colonies on agar at 37 -388
(b) Bile salt glucose, m e d i u m . + -
1 tube 20 cc. of water taken
.. 1 ..
2 tubes 10 cc. ,,
.. 2 ..
4 ,, 5 cc. ,,
.. 4 ..
5 ,, 1 cc. ,,
.. 3 2
5 ,, •1 cc. ,,
.. .. 5
5 ,, •01 cc. ,,
.. .. 5
(e) Fœcal bacilliin
• (d) Sporogenes milk test +
in 50 cc. and upwards.
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15
—
— — — — — — + — — + + — + +
+
— + + — + + — + — — + — + +
— — — — — — — — — — — — — — —
— — — — —
—
—
—
—
—
—
—
—
—
—
— — — — — — — + — — — + — — +
— — — — — + + + + — + — — — —
— — —
+
+
+
+
+
—
II I II II I I III I V II I I V III I III III
I 1 B.
_
B. Coli, etc.*
Grunthal.
B. C di*
Do. .
B. G-ru.nthal.*
B. Coli, etc.
Do.
B. ()loam,
B. Coll, et
B. Grunthal.*
1 B. Grunthal.”
1
li
251
v. —From the open channel, 11th August 1909 : s a m p l e
(a) Total colonies on agar at 37°(
b) Bile salt glucose, medium.
+ —.
1 tube 20 cc. of water taken . ,
1 •
C o l o n y N o .
Sa ochDul ci t .
erose.
A d o n i t . I nul i n.
Vo g e s a n d p r o s k
Mo b l i t y .
G r o u p .
Baccillus.
Groups and
Remarks.
1
2
3
4
5
6
7
8
9
10
+
+
+
-
+
+
+ +
- +
+
+
+
-
+ + + - + -
–
–
– – – – – – –
- - - - - - - - - -
- – + + + + + +
- - - - - - - + -
III III III I III III III IV II IV
B B. N Neapolitanus.
B. Lactis æcrogenes or
capsulatus.
B. Lactis æcrogenes or
ceapsulatus,
Group I 1.
„ II 1
„ III 6.
,, IV 2.
Sample
VI.—From a tap in Georgetown..
(a) Total colonies on agar at 370
(b) Bile salt glucose, medium.
1 tube 20 cc. of water taken .
1 • •
2 tubes 10 cc.
,, -
.. 2 I • .
• •
• •
4
5 cc.,
,,4
5 „ 1 cc.
,,
0 ..
5 „. '1 cc.5 ..
71
• •
5 •01 cc.
,,
2
(c) Faecal bacilli in • 01 cc. and upwards.
(d) Sporogenes milk test
in
I
Sample
VII.—From a tap near Madras Club,
10th August 1908.
(a
) Total colonies on agar at 37°(
b) Bile salt glucose, medium,
+ -
is
1 tube 20 cc. of water taken
1 . .
2 tubes 10 cc ,, . .
2 . .
4 „ 5 cc. ,, . .
3 . .
5 ,, 1 cc. ,, . .
4 . .
5 ,, 1 cc. ,, . .
5 . .
5 ,, 01 cc. ,, . .
5 . .
3 2
(c) Faecal bacilli in 01 cc. and upwards.
(d) Sporogenes milk test
in
sample
VIII.—From the open channel, 11th August
1908:
(a) Total colonies on agar at 37°f
) Bile salt glucose, medium.
+ —
I tube 20 cc. of water taken .. 1 • •
2 tubes 10 cc.
2
,,
•
•
1
2
252
REPORT.
The various sources of supply 'or the Red Hills lake could not be examined, separately because some of these
dried up.
Samples I and III however are from two of such sources. The water in these shows a considerable amount
pollution, but there are indications that it is not of recent nature.
Sample IV from the discharging vent is very inferior in quality and shows contamination that is of a recent
Samples MI and V from the open channel are also highly polluted.
Samples II, VI and VII are all from the distributary system show a great deal of pollution.
Reoommendation--
The whole source of supply will be thoroughly investigated next quarter. When the various supplies to
will be full,
MADRAS.
Samples taken -28th November 1908.
Remarks ;—The main supply for the town of Madras is from the Red Hills lake. This has.
several feeder channels all of which have been analysed this quarter. These
channels are only partially protected. The whole of the catchment area of the
lake is used for grazing ground for thousands of cattle and the animals stray into
the shallow parts of the lake itself. The land around is covered with the excre
ment of these animals and a shower washes it into the lake.
The water from the lake runs down an open channel for seven miles to the town
this is very inadequately preserved.
There has been about 30 inches of rain since last report.
Cholera has been:
prevalent in the town and the vibrios have been found in the water.
254
Bacteriological Analysis.
Sample I.—Supply Channel to Sholavaram lake
(Korataliyar channel from Tamarappakkam). -
(a) Total colonies on agar at 37°-2I0.
(b) Bile salt lactose, medium.
+
- II Group.
1 tube
20 cc. of water taken .
1 • •
4 +
2 tubes
10 cc.
2
..
4
„
5 cc.
,,
..
4
. .
0
1 cc.
,,
.. 5 .. .
5
'1 cc.
:
5 . .
5
„
•01 cc.
,,
5 ..
(c) Fœcal bacilli in • 01 cc. and upwards.
(d) Sporogenes milk test -I-
in 20 cc.
c o l o n y
N o .
s a c c h e r o s e .
Dulcit.
Adoni t .
I n u l i n .
V o g e s a n d p r o s k .
Mobility.
G r u o p .
Bacillus.
G r o u p
—
—
—
+
— — — + —
—
—
—
+
— — — — — —
I I
I I I
I I I
I V
I V
I V
I V
I I I
I V
I V
I I I
B. Pneumoniæ or rhi-
1
2
3
4 5 6 7 8 9 1 0
— + + + + + + + + +
+
+
+
—
— — — + — —
+ + + — + + + — + +
— — — — — — — — — —
Sample II—Sholavaram Lake.
Group
(a) Total colonies on agar at 37° —410.
Do.
(b) Bile salt lactose, medium.
+ -
1 tube
20 cc. of water taken .
1 • •
4 +
2 tubes
10 cc.
2
..
4 ,, 5 cc. ,, .. 4
..
5 1 cc.
,,
.. 1 4
.
5 '1 cc. :
5 5
5 „ •01 cc. ,, 5 ..
+
+
Do.
(c) Fœcal bacilli in 5 cc. and upwards.
(d) Sporogenes milk test +
in 20 cc.
1
2
3
4
5
6 7 8 9 1 0
+
+
+
+
+
+ + + +
+
—
—
—
—
—
— — — — —
+ + + + + + + + + +
—
—
—
—
—
— — — — —
+ + + + + + + + + +
— — — — — + — — — —
I V
I V
I V
I V
I V
I V
I V
I V
I V
I V
Sample III.—Sholavaram Channel.
III B. Pneumoniæ or rhi- G r o u p
(a) Total colonies on agar at 31°-520.
3 +
Do.
(b, Bile salt lactose, medium.
+ -
1 tube
20 cc. of water taken .
1 • •
4 +
2 tubes
10 cc.
2
..
4
5 cc.
,,
4
..
5 1 cc.
,,
.. 5 ..
.
5 '1 cc.
,,
5 . .
5
„
•01 cc.
,,
5 ..
(c) Fœcal bacilli in • 01. cc. and upwards.
(d) Sporogenes milk test —
in 20 cc.
1 2 3 4 5 6 7 8 9 1 0
+
+
+
+
+ + + + + +
+ + + + + + + + + +
+
+
+
+
+ + + + + + — — — — — — — — —
—
—
—
—
— — — — — — —
— — — — — — — — —
—
I I
I I I
I I I
I I V
I V
I I I
I V
noscleromatis.
s a mp l e I V. —B o o s i k a l C h a n n e l .
( a ) T o t a l c o l o n i e s o n a g a r a t 3 7°—5 2 0 .
( b ) B i l e s a l t l a c t o s e , m e d i u m . + -
1 tube
20 cc. of water taken .
1 • •
4 +
2 tubes
10 cc.
2
. .
4
5 cc.
4
. .
5
1
c c . , , . .
5
. .
.
5
' 1
c c .
1
4
5
„
•01 cc. , , . . 5
(c) Foecal bacilli in 1 cc. and upwards.
(d) Sporogenes milk test —
in 20 cc.
1
2
3
4
5
6 7 8 9 1 0
+
+
—
+
+
+ + + +
+
+
—
—
+
+ — — — —
—
—
—
—
—
— — — — —
— — — — — — — — — —
—
—
—
—
— — — — — —
— — — + + + + + — +
I I I
I I I
I I V
I I I
I I I
I V
I V
I V
I V
255
Sample V.--Maclean's Channel.
C o l o n y n o .
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 .
M o t i l i t y .
G r o u p .
Baccillus.
Groups and
Remarks.
Total colonies on agar at 37°-110.
a)
1 + — + — + — IV
2 + — + — + — IV
3 + — + — + — IV
4 + — + — + — IV
5 + --+ — + — IV
6 + — + — + — IV
7 +— +
+ — IV
8 +— +— +— IV
9 + — + — + — IV
10+ — + — + _ IV
B. Lactis ærogenes or
capsulatus.
D o.
Do.
Do.
Do.
Do.
Do.
Do.
Do.
Do.
(b) Bile salt lactose, medium.
Group I nil.
,, II nil.
„ III nil.
,, IV 10.
1 tube 20 cc of water taken .
2 tubes 10 cc.
•
•
4 ,, 5 cc.
,,
• •
5 „
1 cc.
•
.1
cc.
• •
5 „ '01 cc.
•
•
2
4
5
• •
.
• •
..
..
5
Fœcal bacilli in 1 cc. and upwards.
) Sporogenes milk test -- in 20 cc.
1
S A M P L E
Sample VI.—•Water of the Red Hills Lake.
1 + — + — + l — IV
2 + — + — + — IV
3 + — 4- — + — IV
4 + — + — + — IV
5 + — + — + — IV
6 +—+—+— IV
7 + — + — + — IV
B. Laotis ærogenes or
capsulatus.
Do.
Do.
Do.
Do.
Do.
Do.
Do.
Do.
B. Coscoroba.
Group I nil.
„ II nil.
III nil.
„ IV 1.0.
Total colonies on agar at 37°--160.
Bile salt lactose, medium.
+
—
1 tube 20 cc. of water taken .
2 tubes 10 cc.
,,
.
4 ,, 5 cc.
• •
5 „ 1 cc.
.,
• •
5
.1 cc. ,,
..
5 „ • 01. cc.
,,
I
2
4
• •
•• j
• •
• •
• •
5
5
Fœcal bacilli in. 5 cc. and upwards.
) Sporogenes milk test ± in 20 cc.
4
Sample VII —A. Tap in Georgetown, Malaya-
perumal Street.
Total colonies on agar at 37°— b20.
Bile salt lactose, medium.
1 4- — — — + + IV
2 + — — — + + IV
3 + — — — — + IV
4 + + — — — + III
5 +---+— IV
6
+ — — + — IV
7 + + I — — — — III
8 — + — — — — II
9 + + — — — — III
10 + — — 4- — IV
B. Cloacæ.
Do,
B. Coscoroba.
Group I nil.
,, II 1..
„ III 3.
„ IV 6.
1 tube 20 cc. of water taken ..
2 tubes 10 cc.
,
. .
4 „ 5 cc.
,,
..
1. cc., ,,
5 , .1 cc...
5 „ .01 cc.
,,
2
4
. .
• •
• •
• ,
.. .
5
(c)
Fœcal bacilli in 1 cc. and upwards.
Sporogenes milk test + in 20 c.c.
SAMPLE
Sample VIII.—A Tap near Saidapet Toll-gate.
(a)
Total colonies on agar at 37°-730.
(b)
ile salt lactose, medium.
1 + I — + — + — IV
2 +1— + -- + — IV
3 + I — + --- + — IV
4 + — + - + — IV
5 + — + . -- + — IV
6 + — + — + — IV
7 + — + — + — IV
8 + — + — +— IV
9 + — + — + --IV
10 + — + — + — IV
B. Lactic ærogenes or
capsulatus .
Do.
Do,
Do.
Do.
Do.
Do.
Do.
Do.
Do.
Group I nil.
„
II nil.
„ III nil.
„
IV 10.
+ —
1 tube of 20 cc. of water taken. . .
2 tubes 10 cc.,,
• •
4
5 cc.. ,,
5 „ 1 cc
• •
5
7%
.1
CC.. ,,
• •
5 „ .01 cc.
55
• •
1
5
1
• .
..
• •
..
. .
4
5
--- ( c ) F œ c a l
bacilli in 1 cc, and upwards.
(d) Sporogene milk test + in 20 cc.
256
Sample No. 1.
Sholavaram Lake Supply
Sample No. 4.
Boosi kal
CHEMICAL ANALYSIS.
Colour and
Transf,arency.
Physical .
White and opaque.
_________
_
appearances.
Smell.
____
_
None.
.
Quantitative.
• .
Total solids. . Parts per 100,000
solids..
• •
Temporary hardness• •
Do.
do.
Permanent hardness
• •
..
Do.
do.
• •
Total hardness ..
• •
Do.
do,
Chlorine• •
..
Do.
do.
• •
• •
Free ammonia „
• •
Do.
do
• •
Albuminoid ammonia
. .Do.
do.
Oxygen absorbed (Tidy's Process) ..
Do.
do.
Nitrates
• •
..
• •
Do.
do.
1
_
42400
12.000
F000
18000
7.810
0 003
1
0.012
0.060
Nil.
Qualitative.
• •
. .
• •
• •
Nitrites
..
1
•
• •
Sulphates ..
..
• •
• •
• .
Phosphates
.. •
•
.•
•
• •
Iron, poisonous metals
..
• .
Nil.
•
Present.
Nil.
Nil.
Colour and
Transparency.
Physical
_ __
White and opaque.
appearances.
Smell.
None.
Quantitative.
• •
Total solids
• •
• . Parts per 100,000
Temporary hardness
• •
• •
Do.
do.
• •
Permanent hardness
..
Do.
do.
Total hardness ..
..
• •
Do.
do.
• •
Chlorine
• .
Do.
do.
Free ammonia ..
. ,
• •
Do.
do.
Albuminoid ammonia:
• •
• •
Do.
do.
Oxygen absorbed (7idy's Process) ..
Do.
do.
Nitrates
• •
• •
• •
Do.
do.
36 400
11.750
1 000
12.750
5.680
0.007
0.0)6
0.093
.M1.
•
—
----
Qualitative.
Nitrites
..
..
..
..
Sulphates . .
A •
• •
• •
• •
Phosphates
• •
• •
..
• •
Iron, poisonous metals
• •
• •
• •
Nil.
Present.
Nil.
Nil.
No. 3
Sholavaram Channel
CHEMICAL ANALYSIS.
Lie No, 2,
257
Sholavaram Lake.
Colour and
Transparency.
physi cal
White and opaque.
Appearannes.
Smell.
None.
Quantitative.
T o t a l
solids
• •
• •
..
Parts per 100,000.
• •
Temporary hardness. . Do. do.
hardness..
Permanent hardness• • Do. do.
• •
Total hardness . • 1)o. do.
• •
clorine • • .. Do. do.
. .
ammonia .
.
Do.
do.
• •
Abuminoid ammonia A 6 Do. do.
xygen absorbed (Tidy's Process) .. Do. do.
Titrates
• •
• •
Do.
do.
21.200
5.500
1.000 .
6.500
2.130
0 003
0.033
0.053
Nil.
Qualitative.
.
• •
Titrites • •.. • • • •
Oates• •
• •
• •
. ,
• ,
Phosphates
• •
• •
• •
..
..
• •
I r o n ,
poisonous metals
• •
• •
. .
Nil.
Present.
Nil.
Nil.
Colour and
Transparency.
Pysical
White and opaque.
appearances.
Smell.
N one.
Quantitative.
1 solids
..
.. Parts per 100,000.
. .
Temporary hardness..
do,
do.
anent hardness
• •
Do.
. .
1 hardness ..
• •
• •
Do
do.
rineDo.
do.
. ,
• •
. .
ammonia . .•
•
Do.
do.
.
Albumminoid .. • • Do. do.
xygen absorbed (Tidy's Process)
..
Do.
do.
Titrates Do. do.
••
• .
••
19.000
5.500
1.000
6.500
2.130
0.004
0.031
0 045
N i l .
Qualitative.
te s.
• .
• •
• •
• •
• •
Salphates
• .
. .
• •
.
Phosphate
• •
• •
• •
• •
•
poisonous metals
• .
• •
• •
Nil.
Present.
Nil.
Nil.
Sam p le No. 5.
Maclean
C h a n n e l
Sam p le No. 6
Red Hills Lai
258
CHEMICAL. ANALYSIS,
Physical
appearances.
Colour and
Transparency.
Yellowish but clear•
Smell
None.
Total solid
Temporary hardness
Permanent hardness
Total hardness
Chlorine
Free ammonia
Albuminoid ammoni
Oxygen absorbed
Nitrates
..
Quantitative.
..
.. Parts per 100,000.
..
• •
Do.
do.
•
do.
• •
• •
•
Do•
do•
..
• •
Do.
do•
• •
Do•
do•
..
do.
(Tidy's Process)
Do•
do.
• •
• •
Do•
do.
68.000
18•500
7 . 5 0 0
26•000
11.360
0.007
0.015
0.053
Trace.
Nitrites
Sulphate
Phosphates
Iron, poisonous
Qualitative.
• •
• •
• •
, •
• •
. •
• •
- .
• •
..
. .
metals
..
• •
Nil•
.
Present•
Nil.
Nil•
Physical.
appearances.
Colour and
Transparency.
Yellowish and opaque•
N one.
I
Smell•
Quantitative.
Total solids
. „ Parts per 100,0 '0.
Temporary hardness ..
• do•
do•
Permanent hardness
Do.
do•
Total hardness
•.
..
Do•
do.
Chlorine
•.
• .
• •
Do•
do.
Free ammonia,
..
• •
Do.
do•
Albuminoid ammonia
..
Do•
do.
Oxygen absorbed ( Tidy's Process)
Do•
do.
Nitrates
• .
• .
..
Do.
do•
1 3 . 2 0 0 2.000
2.000
4•000
2.130
0.003
0.046
0.093
N i l .
Qualitative.
Nitrites
..
• .
• .
•.
Sulphates
• .
..
• •
Phosphates
• •
• 0
• 0
• •
Iron, poisonous metals
..
..
• •
Nil.
Present.
Nil.
Nil.
261
Mad. 1.
90.
MADRAS.
Samples taken—18th March 1909.
Remarks :—Twelve inches of rain has fallen since last analysis; the last heavy down pour was week
of January 1909 .
262
QUARTERLY ANALYSIS.
,
Sample I.—Supply Channel to Sholavaram Lake.
(a) Total colonies on agar at 37°—One large colony
occupying whole plate
(b) Bile salt lactose, medium.
1 t ube of 20 cc. of wat er t aken . . 1 . .
2 t ube of 10 cc. , ,
. . 2 . .
4 , , 5 cc. , ,
. . 4 . .
5 , , 1cc. , ,
. . 3 2
3 , , •1 cc. , ,
. . . . 5
5 , , •01 cc. , ,
. . . . 5
(c)Fœcal bacilli in 1 cc. and. upwards.
(d) Sporogenes milk test + in 20 cc.
c o l o n y
No .
s a c h e r o s e .
D u l c i t . Adoni t . I n u l i n .
V o g e s a n d p r o s k .
I ndol . M o b i l i t y .
Gr oup.
B a c i l l u s .
Groups
— — — — — — — — —
— — — — — — — — — —
1
2
3 4 5 6 7 8 9 1 0
+
+
+
— — —
+
+
+
—
+
+
+
— — —
+
— —
—
— — — — — — — — —
—
— — — — — — — — —
—
+ + + + + + + + + +
III
III
III
I
I
I
III
IV
IV
I
B. Neapolitanus.
Do.
Do.
B. Grunthal. *
Do.
Do
B. Neapolitanus.
B. Cobcoroba."
Do . *
B. Grunthal.
Group I
II I I I
I V
Sample IL—Sholavaram Lake.
(a) Total colonies on agar at 37°—One large colony
occupying whole plate.
(b) Bile salt lactose, medium,
+
-
1 tube of 20 cc. of water taken .. 1 ..
2 tube of 10 cc. ,,
.. 2 ..
4 ,, 5 cc. ,,
.. 4 ..
5 ,, 1cc. ,,
.. 3 2
3 ,, •1 cc. ,,
.. 2 3
5 , , •01 cc. , ,
. . . . 5
(c) Foecal bacilli in 1 cc. and upwards.
(d) Sporogenes milk test + in 20 cc.
I
2
3
4
5
6
7
8
9
10
+ + + + + + + + + +
+ + + — — — — — —
—
— — — — — — — + + +
— — — — — — — — —
—
—
—
— 1+
—
—
+
+
+
+ + + + + + + + + +
— — — — — — — — —
—
III
III
III
IV
IV
IV
IV
IV
IV
IV
B. Neapolitanus.
Do.
1)o.
B. Coscoroba.*
Do.
Do.
Do.
B. Lactis ærogenes or
oapsnlatus.
Do.
Do.
Group I
II
III.—Supply Channel from Sholavaram
Lake to the Red Hills.
(a) Total colonies on agar at 37° —Countless.
(6) Bile salt lactose, medium.
+ -
1 tube of 20 cc. of water taken
..
1 ..
2 tube of 10 cc.
,,
..
2 ..
4 ,,
5 cc.
,,
.. 4 ..
5 ,,
1cc.
,,
..
5 ..
3 ,,
•1 cc. ,,
.. 1 4
5 ,, •01 cc. ,,
.. 1 4
(c) Fœcal bacilli in 1 cc. and 'upwards.
(d) Sporogenes milk test + in 20 cc.
1
2
3
4
5
6
7
8
9
10
+ + + + + + — + + +
— + — + — + — — —
—
+ — + — — — — — +
—
— — — — — — — — —
—
+ — + — + — — + — + — + + + + + + + + +
_ _ _
— — — — — — — — —
—
Iv
Iv
III
IV
III
I
IV
IV
ITV
B. Lactis ærogenes or
capsulates
B. Neapolitanus.
B. Lactic ærogenes or
capsulatus.
B. Neapolitanus,
B Cloaca.
B. Neapolitanus.
B. Grunthal *
B. Cloacæ.*
B. Cloacæ.*
Group 1 , ,
I I I
Sample IV.—Maclean's Channel.
(a) Total colonies on agar at 37° — 1,260
(b) Bile salt lactose, medium.
+ -
1 tube of 20 cc. of water taken .. 1 ..
2 tube of 10 cc. ,,
.. 2 ..
4 ,, 5 cc. ,,
.. 4 ..
5 ,, 1cc. ,,
.. 5 ..
3 , , •1 cc. , ,
. . . . 5
5 ,, •01 cc. ,,
.. .. 5
(c) Foecal bacilli in 1 cc. and upwards.
(d) Sporogenes milk test — in 20 cc.
1 2
3
4
5
6
7
8
g
10
— — + + + + + + + + — — — + — — — — —
—
— — + + — — — — —
—
— — — — — — — — —
—
— — + + + + — — —
—
+
+
+
+
+
—
+
+
+
+
— — — — — + + — —
—
I
I
Iv
III
IV
IV
IV
IV
IV
IV
B. Grunthal.*
D o . *
B. Lactis ærogenes or
capsulatus.
B. Cloacæ.*
Do.
B, Coscoroba.
Do.
Do.
Do.
Group
II
263
sample
V.—Red Hills.
(a)
(a)Total colonies on agar at 37°—One large colony
occupying whole plate.
(b) Bile salt lactose, medium. + —
1 tube 20 cc. of water taken
.. .. 1
2 tube 10 cc.
,,
.. .. 2
4 ,, 5 cc.
,,
.. 4 ..
5 ,,
1 cc.
,,
.. 1 4
5 ,,
•1 cc.
,,
..
.. 5
5 ,, •01 cc.
,,
..
.. 6
(c) Fœcabacilli in 20 cc. and upwards.
(d) Sporogenemilk test —in 20 dc.
c o l o n y
N o .
s a c c h e r o s e .
Dul ci t . A d o n i t .
Inulin.
v o g e s a n d p r o s k .
I n d o l .
Mo b i l i t y .
G r o u p .
Bacillus.
Group and
Remarks.
1
2
3
4
5
6
7
8
9
10
+
+
+
+
+
+
+
+
+
+
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
IV
IV
IV
IV
IV
IV
iv
IV
IV
IV
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
—
—
+
+
+
+
+
+
+
+
+
+
+
—
—
—
—
—
—
—
—
—
B. Lactis ærogenes or
c a p s u l a t u s
Do.
Do.
DO.
Do.
D 0 .
Do.
Lactis ærogenes.
Group I,nil.
" II, nill.
„ III,nil .
„
IV, 10.
.
VI.—Tapwater in Malayaperumall Street,
Georgetown.
(a)Total. colonies on agar at 37°—Countless.
(b) Bi l e sal t l actose, medi um,
+ -
1 tube 20 cc. of water taken .. 1 ..
2 tube 10 cc. ,,
.. 2 ..
4 ,, 5 cc. ,,
.. 3 1
5 ,, 1 cc. ,,
.. 3 2
5 ,, •1 cc. ,,
.. 2 3
5 ,, •01 cc. ,,
.. .. 5
Fœcal
(c) Fœcal bacilli in •1 cc. and upwards.
(d) Sporoaenes milk test + in 20 cc.
1
2
3
4
5
6
7
8
9
10
+
+ +
+
+
+
+
+
+
+
— + +
+
+
+
+
+
+
+
—
—
—
—
— —
—
—
—
—
—
—
—
—
—
—
—
— —
—
—
—
—
— —
—
+
—
— +
+
+
—
—
—
—
— +
—
—
—
—
—
— —
—
—
—
+
IV
III
III
III
II I
III
III III
I V
III
B. Coscoroba.
B. Neapolitan-us.
Do.
Do.
Do.
Do.
o
D.
B. Neapolitanus.
B. Coscoroba
Group I,nil.
„
II, nil
,,
III, 8.
,, IV, 2.
VII—Tapwater near Saidapet Toll
Gate 37°—350
Bile salt lactose medium
.
1 tube 20 cc. of water taken
..
1 ..
2 tube 10 cc.
,,
..
1 1
4 ,, 5 cc.
,,
..
1 3
5 ,,
1 cc.
,,
..
.. 5
5 ,,
•1 cc.
,,
..
.. 5
5 ,, •01 cc.
,,
..
.. 5
( c ) F œ c a b a c i l l i i n 2 0 c c . a n d u p w a r d s .
(d).Sporogenes milk test — in 20 cc.
1
2
3
4
5
6
7
8
9
10
+ + +
+
+
+
+
+
+
+ + +
+
+
+
+
+
+
—
—
—
—
— —
—
—
—
—
—
—
—
—
— —
—
—
—
—
—
—
—
—
— —
—
—
—
—
+ + +
+
+
+
+
+
+
—
—
—
—
— —
—
—
—
—
III
III
in
III
III
III
III
III
III
IV
III
B. Nea politanus.
Do.
Do.
Do.
Do.
Do.
Do
Do.
B.Coseoroba
• -
B. Neapolitanus.
Group I, n i l .
, , I I , n i l .
, , I I I , 9 .
, , I V , 1 .
264
REPORT.
Supply channel to Sholavaran lake.—This source of supply is fairly polluted, f œc al bacilli being present in 1 cc.
organisms however do not indicate recent pollution.
Chemically the water is a bad water. Chlorides and ammonias are high.
2.
Sholavaran lake. —Fæcal bacilli are present in 1 cc. The organisms however are not very objections
themselves.
Chemically the water is harder and worse than last quarter. This is due to the falling off in quality of the
channel and to the fact that there has been no rain recently. Chlorides are markedly high.
3.
Sholavaram channel.—This source is highly polluted. It contains fæcal bacilli in 1 cc. The total org<illigeble>
are shown as countless. The organisms present are however not very objectionable.
4. Maclean's channel.—fæcal bacilli are present in 1 cc. The organisms however show that the water h
settled and are not of an objectionable character.
Chemically the water is considerably improved on last time. The hardness instead of being 26 is now 13
the permanent hardness is as much as 3·.5. Chlorine has fallen from 11·3 to 9·5. Ammonias are both higher tha<illigeble>
time ; so that apparently animal pollution is greater though mineral matter is less.
5. Red Hills lake.— This source shows considerable improvement on last time. F æ cal bacilli is present in <illigebel>
a surface sample. This improvement is due to settlement and action of the sun.
Chemically the water is still only indifferent in quality and very much resembles what it was last quarter.
6. Sample of water taken in Georgetown.—Fæcal bacilli present in 1 cc. The organisms however are not object
7. Sample taken at the Saidapet Toll-gate.—Fæcal bacilli are present in 20 cc. The improvement is due to<illigeble>
meant of organisms in the pipes, Saidapet toll-gate being situated much further from the head-works than Georgetown.
Chemically the water in this sample is not satisfactory. The increase in the free ammonia must be due
pollution.
Boosikal channel is now dried up.
The water as a whole this quarter shows a very decided improvement on that of last quarter. F æ c a l ba <i l l i ge bl e >
undoubtedly present in much too large numbers. But due to the storage in the lake the more objectionable o<illigeble>
have disappeared leaving only the resistant ones.
sample No. I.
Supply channel to Sholavaram lake. p y s i c a l e
No. IV.
Maclean's channel.
CHEMICAL ANALYSIS.
265
Appearances.
Colour and
Transparency.
Yellowish and hazy.
Smell.
None.
41.000
8 500
1.000
9.500
8.875
0.006
0.030
0 . 1 2 6
Nil.
Quantitative.
solids
..
..
.. Parts per 100,000.
• •
C rary hardness
..
Do.
do.
hardness..
anent hardness• •
Do.
do.
• •
hardness ..•..
Do.
do.
rine
..
•
. •
Do.
do.
..
.
ammonia ...Do.
do.
amminoid ammonia .. • • Do. do.
en absorbed (Tidy's Process) ..
Do.
do.
Titrates (as N2 05) .. Do. do.
Nil.
Present.
Nil.
Nit.
Qualitative.
es
• •
..
.. •
..
• •
ates
. •
• •
• •
•
•
hates
• •
• •
..
• •
. .
poisonous metals
• •
• •
..
..
al
Appearanees.
Colour and
Transpareney.
Yellowish and opaque.
Smell.
None.
4 9 . 0 0 0 10'000
3.500
1 3 . 5 0 0
9.585
0.023
0.048
0.141
N i l .
Quantitative.
Solids
• •
• •
.. Parts per 100,000.
Temporary hardness.. do. • •
P e r m a n e n
h a r d n e s s
. .
• •
D o .
d o .
hardness ..
..
..
Do
do.
do.
• •
• •
ammonia ..Do. do. • •
• •
Aluminoid ammonia • • .. Do. do.
absorbed (Tidy's Process) ..
Do.
do.
as (N2 O5)
•
•
Do.
do.
Qualitative.
Solids
•• •• •• •
• • • T i t r a t e s • • • • • • • • • •P
h o s p h a t e s • • • • • • • • • •
p o i s o n o u s m e t a l s
• • • • • •
Nil.
Present.
Nil.
.Nil.