NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
165
SAMPLE V.—TAP IN WESTERN CORNER IN PALLA STREET.
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 e .
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 .
Group.
N a m e o f B a c i l l i .
G r o u p
a n d R e m a r k s .
Total colonies per cc. on agar at 37° C.—600.
-
Bile salt lactose, medium.
+
1 tube of 20 cc.
...
...
...
...
1
...
1 + +
- +
- - - - IV B. Gasoformans
... Group
I nil.
2 tubes of 10 cc.
...
... ...
2
...
2 + +
- +
- - - - IV
Do.
II, nil.
3
,,
5 cc.
...
...
...
3
...
3
+ +
-
+
- -
- - IV
Do.
...
III, nil.
3
,,
1 cc.
...
...
...
...
2
1
4 +. +
- +
- +
- - IV B. Lactisærbgenes ...
„
IV,10.
3
,,
.1
..
... ...
...
1
2
5 + +
- + —
- - - IV B. Gasoformans.
3
„
. 0 1 c c .
. . .
. . .
... ... ...
3
6 + +
- +
- - - - IV
Do.
7 + +
- +
- - - -
IV
Do.
Fœcal bacilli in 1 cc. and upwards.
8 + +
-
+
- - - - IV
Do.
... Class
I, nil.
9
+ +
-
+
-- -- --- - IV
Do.
...
„
II, 10.
No vibrios in 100 cc.
10 + +
- +
- - - - IV
Do.
...
„
III, nil.
REPORT.
As usual the water of the well to the east of the Headworks is the better and it is in remarkably good
order on the present occasion. The water of the well to the west shows pollution of a recent and most
objectionable type though it is not present in very large , amount. It would be well to exclude the water of
this well if possible. Little need be said as to the water in the collecting chamber as the latter was under
repair at the time. A casual glance at the total count might give the impression that it was sewage we
were dealing with. The water as distributed is considerably better though not as good as the east well water
nor as regards the quantity of pollution present as the west well water.
Chemically the water suggests a mixture from the two sources though some slight amount of oxidation
hs gone on.
166
Chemical Analysis.
SAMPLE No. I.
SAMPLE No. II.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
..
...
...
...
Parts per 100,000 ...
24.000
4 3 . 0 0 0
Temporary hardness
...
...
...
Do.
...
14.500
26.500
Permanent hardness
...
...
...
Do.
...
0.500
0.500
Total hardness
...
...
...
...
Do.
. . .
15.000
27.000
Chlorine...
D o
0.710
1.420
Ammoniacal nitrogen
...
...
...
Do.
Trace.
Trace.
Albuminoid nitrogen
...
...
...
Do.
...
0.002
Trace.
Oxygen absorbed (Tidy's Process) ...
...
Do.
...
0.019
0.019
Nitric nitrogen
...
...
...
Do.
...
0.100
0.150
QUALITATIVE.
Nitrites
...
...
...
. . .
Nil.
Nil.
Sulphates
...
...
...
...
...
...
Trace
Present.
Phosphates ...
...
...
...
. .
Nil.
Nil .
Iron, poisonous metals
...
. . .
. . .
. .
Nil, nil.
Nil, nil.
SAMPLE No. IV.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids
...
...
...
...
..
...
... Parts per 100,000
...
36.000
Temporary hardness
...
...
...
...
Do....
23.000
Permanent hardness
...
...
...
...
...
Do.
...
1.000
Total hardness
...
...
...
...
...
Do
24.000
Chlorine
...
...
...
...
...
Do.
...
1.420
Ammoniacal nitrogen
...
...
...
...
...
Do.
...
Trace.
Albuminoid nitrogen
...
...
...
...
...
..
Do....
T r a c e
Oxygen absorbed ( Tidy's Process) ...
...
..
Do.
...
0.010
Nitric nitrogen
...
...
...
...
...
...
Do.
...
0.175
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
Nil.
Sulphates ...
...
...
...
...
...
...
Present.
Phosphates ...
...
...
...
...
...
...
...
...
...
Nil.
Iron, poisonous metals...
...
...
...
...
Nil, nil.
167
VIZAGAPATAM.
WATER SAMPLES TAKEN—9TH AND 10TH DECEMBER 1912.
Remarks.—There has been about 11.92 inches of rain since last analysis. The town supply is
constant. The level of water in tank was about 17.35 feet.
Bacteriological Analyses.
SAMPLE I.—TANK OK RESERVOIR.
Nu mb e r . L a c t o s e .
S a c c h a r o s e .
Dulcite.
Ad o n i t e .
I nul i n. e .
V o g e s a n d P r o s k .
Indol .
Mot i l i t y. Gr o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—80.
Bile salt lactose, medium.
+
-
1 tube of 20 cc...
... ...
1
...
1 + + - - - - + - IV B. Coscoroba
... Group I, nil.
2 tubes of 10 cc.
...
...
...
...
2
...
2 + + - - - - + - IV
Do.
„
II, nil.
3„ 5 cc. ...
... ...
2
1
3 + + - - - - + - IV
Do.
,,
III,
nil.
3
,,
1 cc. ... ... ... ...
...
3
4 + + - - - - + - 1V
Do.
...
„
IV, 10.
3
„
.1 cc.
...
...
...
...
3
5 + + - - - - + - IV
Do.
3
„
.01 cc.
...
...
...
...
...
3
6 + + - - - - + - IV
Do.
7 + +
- - - - + - IV
Do.
Fœcal bacilli in 5 cc. and upwards.
8 + + - - - - + - IV
Do.
.. Class I, nil.
9
+ + - - - - + - IV
Do.
...
„ I I , 10.
No vibrios in 100 cc.
10 + + - - - - + - IV
Do.
...
,, III, nil.
SAMPLE II.—FIRST TAP AFTER FILTRATION.
Total colonies per cc. on agar at 37° C.—110.
No lactose fermenters.
Bile salt lactose, medium.
+
-
1 tube of 20 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 not present in 60 cc.
No vibrios in 100 cc.
SAMPLE III.—TAP NEAR BEACH—TAP No. 24 .
1 + + - + - + - - IV B. Lactis ærogenes ...
2 + + - + - + - - IV
Do.
... Group I, nil.
Total colonies per cc. on agar at 37° C.
—640.
3 + + - + - + - - IV
Do.
...
„
,
II nil.
4 + + - + - + - - IV
Do.
,,
III,
nil.
5
+ + - + - +
- - IV
Do.
,,
IV,
10.
Bile salt lactose, medium.
+
_-
6 + + - + - + - - IV
Do.
1
tube of 20 cc.
1
. . .
7 + + - + - + - - IV
Do.
. .
2
8 + + - + - + - - IV
Do.
... Class I, n i l .
3
,,
5 cc.
...
...
...
...
1
2
9 + + - + - + - - IV
Do.
,,
II,
10.
3
,,
1 cc.
...
...
...
. . .
. . .
3
10 + + - + - + - - IV
Do.
,,
III,
nil.
3
„
.1 cc.
...
...
...
...
...
3
3
„ .01 cc.
. . .
3
Fœcal bacilli in 20 cc. and upwards.
No vibrios in 100 cc.
SAMPLE IV.—TAP NEAR RAILWAY STATION-TAP NO . 33.
1 + + - - - - +
- IV B. Coscoroba.
2 + + - - - - + - IV
Do.
... Group I, nil.
Total colonies per cc. on agar at 37° C.—520.
3 + + - - - - + - IV
Do.
..,
„
II, nil.
4 + +
- - - - + - IV
Do.
,,
III,
nil.
Bile salt lactose, medium.
+
- 5
+ + - - - - +
- IV
Do.
...
„
IV, 10.
6 + + - - - - + - IV
Do.
7
+ + -
- - - +
- IV
Do.
1 t u b e o f 2 0 c c . . . . . . . . . . . . . .
1
. . . 8 + +
-
- +
- IV
Do.
... Class I, n i l .
2 tubes of 10 cc.
. . .
2
9 + + - - - - + - IV
Do.
...
, , I I , 1 0 .
3 , ,
5 c c .
. . .
. , .
. . .
. . .
1
2
10
+ + - - - - + - IV
Do.
...
„ III, nil.
3
,,
1 cc.
...
...
...
...
2
1
3
,,
.1 cc.
...
...
. . .
. . .
3
3
,,
.01 co.
...
...
...
...
...
3
Fœcal bacilli in 20 cc. and upwards.
No vibrios in 100 cc.
47
168
REPORT.
The samples on this occasion show a high degree of purity, not quite so good as in
December 1910 perhaps, though the relation of the different samples to one another as regards
purity is more easily explained. Thus we have the tank water which shows one fœcal germ in
five cc. not a large number certainly but enough to indicate that the filters are working efficiently
since no fœcal germs are found in 60 cc. of the filtered water. The water as distributed is
not quite so good as a fairly large total count of ordinary water germs has been picked up and.
there are now fœcal germs in 20 cc. of the water. Possibly this is due to some residual silt
which is gradually getting eliminated since the water, as distributed, both in regard to its content
of fœcal germs and its total count is definitely better than it was in September last.
Chemical Analysis.
SAMPLE I.
SAMPLE IV.
Physical appearances.
Colour and
Transparency
White and opaque.
White and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
...
...
...
... Parts per 100,000 ...
15.600
14.800
Temporary hardness
...
...
...
Do.
...
6.000
6.500
Permanent hardness
...
...
Do.
...
4 . 0 0 0
3.500
Total hardness
...
...
...
...
Do.
...
10.000
10.000
Chlorine
...
...
...
...
...
Do.
...
2.485
2.485
Ammoniacal nitrogen
...
...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen
...
...
...
Do. ...
0.012
0.013
Oxygen absorbed (Tidy's Process)
...
Do.
...
0.055
0.033
Nitric nitrogen
...
...
...
„.
Do.
...
Nil.
Nil.
QUALITATIVE.
Nitrites
... ... ... ... ... ... ... ...
Nil.
Nil.
Sulphates ...
...
...
...
...
...
...
...
...
Present.
Present.
Phosphates ...
...
...
...
...
,..
...
...
...
Nil.
Nil.
Iron, poisonous metals ...
...
...
...
...
..
Nil, nil.
Nil, nil.
171
SAMPLE IX.—TAP IN FRONT OF OLD OOTY CISTERN.
N u m b e r . La c t o a e .
S a œh a r o s e .
Dul oi t e.
A d o n i t e .
I nul i n.
V o g a a n d P r o s k .
I ndol .
Moda l i t y. Gr oup.
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.—16.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
...
...
...
. . .
1
...
1 +
+
-
-
- -
+ - IV B. Coscoroba
... Group I, nil.
2 tubes of 10 cc.
...
...
...
. . .
1
1
2 + + -
-
- - + - IV
Do.
...
„ II, nil.
3 „ 5 cc.
...
...
...
. . .
1
2
3 + + - - - - + - IV
Do.
...
„ I I I
n i l.
3 „ 1 cc.
...
...
...
. . . 1
2
4 + + - - - - + - IV
Do.
... „ IV, 10.
3 „ .1 cc.
...
...
. . .
1
2
5 + + -
-
- - + - IV
Do.
...
3 „ .01 cc.
...
...
...
. . . ...
3
6 + + -
- - - + - IV
Do.
...
Fœcal bacilli in 10 cc. and upwards.
7
+
+
-
- - - + - IV
Do.
...
8 + + - - - - + - IV
Do.
... Class I, nil.
9 + + - - - - + - IV
Do.
...
.
„ I I , 1 0 .
No vibrios in 100 cc.
10 + + -
-
- - + - IV
Do.
... „ III, nil.
REPORT.
The high degree of purity noticed at this season last year has unfortunately not been maintained except
in one case, viz., the water of the Marlimund Lake. Bacteriologically this water is much better than any of
the others even though the total count is somewhat higher. Next in order of merit comes the water of the old
Ooty Cistern. It has one fœcal germ in 10 cc. and a total count of only ten to the cc. It is therefore in
very good order. The waters of the Tiger Hill and Kodappamund Reservoirs are of much the same quality.
Though inferior to the two previous ones they are not at all bad. The water of the Dodabetta System is
distinctly inferior to any of the others. It shows definitely low total counts but the fœcal germs are from five
to sixty times as numerous as in the other samples. Where there is any difference the water of the Pipe
Lines is inferior to that of the corresponding Reservoir, but not to such an extent as to suggest any consider-
able accumulation of silt. There is notable diversity in the species of lactose fermenters present in the water
of the Tiger Hill and Dodabetta Pipe Lines.
Chemically the water of the Upper Dodabetta Reservoir shows a high amount of organic matter, but it is
probably in suspension only as it has disappeared from the water of the Lower Reservoir. The others are
much as usual.
48
172
Chemical Analyses.
SAMPLE No. I.
SAMPLE No. II.
Physical appearances.
Colour and
Transparency.
Yellowish and
hazy.
Colourless and
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
...
...
... Parts per 100,000
...
3.000
2.600
Temporary hardness
...
...
...
...
Do.
...
Nil.
Nil.
Permanent hardness
...
...
Do.
".
0.750
0.750
Total hardness
...
...
...
...
. . .
Do.
...
0.750
0.750
...
Chlorine
...
...
...
...
...
Do.
...
0.284
0.284
Ammoniacal nitrogen
...
...
...
Do.
..
0 . 0 0 3
Trace.
Albuminoid nitrogen
, ...
...
...
...
...
Do.
...
0.016
0.003
Oxygen absorbed ( Tidy's Process)
..0
...
...
Do.
0.118
0.018
Nitric nitrogen...
...
...
...
Do.
...
Nil.
Nil.
QUALITATIVE.
..
...
Nitrites
...
...
...
..
...
...
...
...
...
Nil.
Nil.
...
Sulphates
...
...
...
...
...
...
...
...
...
Nil.
Nil .
..
Phosphates...
...
...
...
P.
6y.
..
Nil .
Nil.
Iron, poisonous metals
...
...
...
...
.........
...
Nil, nil.
Nil , nil.
SAMPLE No. VI. SAMPLE No. IV.
Physical appearances.
Colour and
Transparency.
Yellowish and
hazy.
Yellowish and
hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
...
...
...
...
Parts per 100,000 ...
3.400
3.200
Temporary hardness ...
...
...
...
Do.
...
Nil .
Nil.
Permanent hardness
...
...
...
...
...
Do.
...
1.000
0.750
Total hardness
...
...
...
...
...
Do.
...
1.000
0.750
Chlorine
...
...
...
...
Do.
...
0.284
0.284
Ammoniacal nitrogen
...
...
...
Do.
...
Trace.
0.003
Albuminoid nitrogen
...
...
...
...
...
Do.
...
0.012
0.008
Oxygen absorbed ( Tidy's Process) ...
...
...
...
Do.
...
0.145
0.082
Nitric nitrogen
...
...
...
...
...
...
Do.
...
Nil.
Nil.
QUALITATIVE.
Nitrites
...
...
...
...
...
...
.
...
...
...
Nil.
Nil.
Sulphates
...
...
...
...
...
...
...
...
...
Nil.
Nil
Ph os p hates ...
...
...
...
...
P..
...
...
...
...
Nil.
Nil.
Iron, poisonous metals
...
...
...
...
...
...
....
Nil, nil.
Nil, nil .
SAMPLE No. VIII. SAMPLE No. IX.
Physical appearances.
Colour and
Transparency.
Slightly yellow-
ish but clear.
Slightly yellow-
ish and hazy.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
...
...
...
...
Parts per 100,000 ...
3.000
4.400
Temporary hardness...
...
...
Do.
..,
Nil.
Nil.
Permanent hardness
...
...
....
...
...
Do.
...
0.750
2.000
Total hardness
...
...
...
...
Do.
...
0.750
2.000
...
Chlorine
.
...
...
...
...
...
Do.
...
0.248
0.355
Ammoniacal nitrogen
...
...
...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen
•..
...
...
Do.
...
0.003
Trace.
Oxygen absorbed (Tidy's Process) ...
...
...
...
Do. ...
0.036
0.018
Nitric nitrogen...
...
...
...
Do.
...
Nil.
Trace.
QUALITATIVE.
...
..
...
...
Nitrites
...
...
...
...
...
...
...
Nil.
Nil.
...
Sulphates
...
...
..•
...
...
...
...
...
. Nil .
Trace.
Phosphates ..
...
...
...
...
...
...
..
...
Nil.
Nil.
Iron, poisonous metals
4..
...
...
...
Nil, nil.
Nil, nil.
174
S SAMPLE V.—TAP AT THE END OF BASTION ROAD TERMINUS--
N u m b e r
L a c t o s e
S a c c h a r o s e
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
Group
Name of Bacilli.
Group an and
Remarks.
FOUNTAIN No. 12.
Total colonies per cc. on agar at 37° C.-114.
Bile salt lactose, medium.
+
-
1 tube of 20 cc.
..
...
...
1 + + + - -
+
— + III B. 73.
2 tubes of 10 cc.
...
...
...
1
1 i 2 + + + - — + — + III Do.
...
... Group I, nil.
3 „ 5 cc.
...
2
1
3 + + + - - +
+ III Do....
...
II, nil.
3 „ 1 cc. ...
...
...
. . .
3
4 + + + - - +
+— + III Do....
...
,,
„ III, 10.
3 „ 1 cc. ...
...
...
... . . . . . .
3
5 + + + - - + — + III Do.
IV, nil..
3 „ 01 cc. ...
...
...
... ...
3
6 + + + - - + — + III Do.
Faecal bacilli in 5 cc. and upwards.
7 + + + - - + — + III Do.
Class I, nil.
8 + + + - — + — + II1 Do.
...
...
No vibrios in 100 cc.
9 + + + —-— + — + III Do.
II, nil.
10 + + +
- - + + III Do.
III, 10.
REPORT.
Except in the matter of total count the water of the canal is much as it was at the time of the corre-
sponding examination in 1911. *The total count this time is exceedingly high whereas in December 1911 it
was quite moderate. As in 1911 also one of the settling tanks was in process of being cleaned so the water
was simply pumped into the other, the northern in this instance, and then run on to the filter beds, Even
this slight amount of settling has sufficed to bring about a surprising improvement The total count is reduced
a hundredfold and the fœcal germs, very much fewer originally, fivefold, Filtration has brought about a
farther slight improvement so the water as distributed is in very fair order. Only the most resistant types of.
fœcal germs are found and these are not found in less than 5 to 10 cc. of the water. The total counts are
also all quite moderate.
Chemically the water is as usual quite good.
4 9
175
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour and
Transparency.
White and opaque.
White and opaque.
Smell.
None.
None.
QUANTITATIVE.
Total solids „.. ... ... ... ...
Parts per 100,000 ..
19.000
19.000
Temporary hardness ...
...
...
...
Do.
...
5.500
5.500
Permanent. hardness ..
...
...
...
Do.
...
3.000
3.000
Total hardness
...
Do.
...
8.500
8.5000
Chlorine
...
...
...
...
...
Do.
...
2.485
2.485
Ammoniacal nitrogen ... ... ...
Do.
...
Trace.
Trace.
Albuminoid nitrogen ...
...
...
Do.
...
0.007
0.007
Oxygen absorbed (Tidy's Process) ...
Do.
...
0.055
0.055
Nitric nitrogen
...
...
Do.
...
Trace.
Trace.
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
...
Nil.
Nil.
Sulphates
..
...
...
...
...
...
Present.
Present.
Phosphates ...
...
. ... ... ... ... ...
N i l
Nil.
Iron, poisonous metals
...
...
...
...
...
...
Nil, nil.
Nil, nil.
SAMPLE V.
Physical appearances.
Colour and
Transparency.
White and hazy.
Smell.
None.
QUANTITATIVE.
Total solids ...
...
...
...
... Parts per 100,000 ...
17.000
Temporary hardness
...
...
Do.
...
5.000
Permanent hardness
...
...
...
Do.
3.000
Total hardness
...
...
...
Do.
...
8.000
Chlorine
...
...
...
Do.
...
2.485
Ammoniacal nitrogen
... ... ...
Do.
...
Trace.
Albuininoid nitrogen
...
...
Do.
...
0.006
Oxygen absorbed (Tidy's Process) ...
...
Do.
...
0.036
Nitric nitrogen
...
...
Do.
...
Trace.
QUALITATIVE.
Nitrites
...
..
...
...
...
...
...
...
...
Nil.
Sulphates ...
...
...
...
...
...
...
...
Present.
Phosphates ...
...
...
...
...
...
Nil.
Iron, poisonous metals ...
...
...
...
...
...
Nil, nil.
177
REPORT.
The Vellore water on this occasion is in very good order as in the main it always is at this
season. Bacteriologically the unfiltered water is the best with only one fœcal germ in thirty
cc. and so low a total count as 43 to the cc. In both these respects the filtered water and the
water as distributed are slightly inferior. Passage through the filter has however reduced the
organic matter to some extent and this may be taken as a set off against the small rise in the
number of bacteria present. These latter are unobjectionable in kind.
Chemical Analyses.
SAMPLE I.
SAMPLE Ill.
Physical appearances.
Colour and
Transparency.
Slightly yellowish and
hazy.
White and hazy.
Smell.
None.
None.
Q U A N T I T A T I V E .
Total solids ...
...
.... Parts per 100,000
...
22.000
Temporary hardness ...
... ...
Do.
...
12.000
12.000
Permanent hardness ...
...
...
Do.
...
2.000
2.000
Total hardness
...
...
...
Do.
...
14.000
14. 000
Chlorine
... ... ... ...
Do.
...
0.7] 0
0.710
Ammoniacal nitrogen
...
...
Do.
...
Trace.
Trace.
Albuminoid nitrogen ...
...
...
Do.
...
0.017
0.006
Oxygen absorbed( Tidy's Process) ...
Do.
...
0 . 0 7 3
0.036
Nitric nitrogen
... ...
...
Do.
...
Nil.
Nil.
QUALITATIVE.
Nitrites
...
...
...
...
...
...
...
..
Nil.
Nil.
Sulphates
...
... ... ... ... ...
Present.
Present.
Phosphates
..
...
...
...
..
.
... ... ...
Nil.
Nil.
Iron, poisonous metals
... ... ... ... ... ...
Nil, nil.
Nil, nil.
179
Chemical Analyses.
SAMPLE I.
SAMPLE III.
Physical appearances.
Colour and
transparency.
Colourless and clear.
White and opaque.
Smell.
None.
None.
QUANTITATIVE.
Total solids ...
...
...
...
...
Parts per 100,000
...
46.000
50.400
Temporary hardness
...
...
...
Do.
...
19.000
19.000
Permanent hardness
...
...
...
Do.
1.000
1.000
Total hardness
...
...
Do.
20.000
20.000
Chlorine
...
...
...
...
...
Do.
3.905
3.905
Ammoniacal nitrogen
...
...
...
Do.
...
Trace.
Trace
Albuminoid nitrogen
...
...
...
Do.
. . . .
0.006
0.011
Oxygen absorbed (Tidy's process) ...
...
Do.
0.018
0.0455
Nitric nitrogen
...
...
...
...
Do.
...
0.050
0.050
QUALITATIVE.
Nitrites
...
...
...
...
—
...
. . .
Nil.
Nil.
Sulphates
...
...
...
."
...
...
...
...
...
Present.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
...
."
...
...
...
...
...
...
...
...
Nil, nil.
Nil,nil.
50
REPORT
ON THE
WORKING. OF THE MICRO–BIOLOGICAL SECTION.
OF THE
KING INSTITUTE OF PREVENTIVE
MEDICINE, MADRAS
FOR THE YEAR
1913
(WITH APPENDICES).
MADRAS:
PRINTED BY THE SUPERINTENDENT, GOVERNMENT PRESS..
1914.
;'AGE
1
9
TABLE OF CONTENTS.
Report on the working of the Micro-Biological Section by Major J. W. Cornwall, M.A.,
M.D., D.P.H., I.M.S., Acting Director ..
..
..
..
. .
Appendix I—Notes on Vaccine Therapy by Civil Assistant Surgeon M.Kesava Pai,
M.D.
. . . . . . . . . . . . . . . . . .
Appendix II—Laboratory Notes by Civil Assistant Surgeon T. Sitapati Ayyar, LM. & S.
29
2
The following table shows the increase in the work done by this section during
the past four years :—
TABLE I.
Number of samples.
1910. 1911. 1912. 1913.
Chemical analyses
..
..
..
..
. .
365
429
416
498
Bacteriological examinations
..
..
..
..
. . 509
529
620
634
With the object of obtaining data for the better classification of bacteria found in
water-supplies and to obtain an indication of the value of the methods of bacterio-
logical examination now practised, one hundred organisms were isolated. from the
filtrates of each of the four experimental filters and their re-actions studied. The
results of this laborious investigation, if found to be of value when worked up, will
be published elsewhere. Incidentally, it may throw some more light on the
comparative merits of the four filters.
As the routine quarterly analysis of municipal and jail water-supplies was
discontinued the usual appendix to this report, displaying the detailed figures, has no
existence.
Specimens sent for examination. —The total number shows an increase on last
year. The details are given in the following table :—
TABLE II
N u m b e r .
Description of specimens.
Number of
positive
results.
Number of
negative
results.
Total.
Remarks.
1
Plague, human
..
..
..
..
61
98
159
Peripheral blood 17.
Putrefactive organisms
11.
2
Plague, animal
..
. .
67
569
636
Putrefactive organisms 31.
3
Blood for Widal's test
..
..
328
216
544
,i 204 positive in (1 in 96);
(ii) 124 positive in (1 in
32) but negative in (1 in
96 .
4
Paratyphoid A
..
..
..
..
15
118
133
12 positive in (1 in 32) but
negative in (1 in 96) and
3 positive in (1 in 96).
5
Do.
B
..
..
..
..
26
95
121
21 positive in (1 in 32) but
negative in (1 in 96),
5 positive in (1 in 96).
6
Wassermann's re-action
..
..
..
263
341
601
7
Blood for Malta fever
.. ..
. .
3
13
16
8
Blood for malarial parasites..
..
75
195
270
9
Blood for increase of large mononuclears ..
4
. .
4
10
Blood for leucocytosis
. . .
. . .
7
17
24
11
Do. for Kala-Azar ..
..
.
..
2
2
Indefinite. .
12
Do for filaria
..
..
..
2
. .
2
13
Sputum and pus smears for tubercle bacilli.
11
35
46
14
Discharge for Gonococci
..
.. ..
15
17
32
Includes 6 indefinite.
15 Specimens for lepra bacilli ..
..
..
4
6
10
16
Cholera (stools)..
.. ..
2
2
4
17
Urine for chemical and microscopica
l examination
. .
. .
4 4
18
Stools for ova and amœbæ ..
..
. .
3
3
6
19
Sputum for pneumcoccus
..
.. ..
4
1
5
20
Blood for differential count ..
..
. .
. .
. .
15
21 Specimens for spirochætes (fœtuses)
..
10
30
40
22
Do.
(smears)..
3
4
7
23 Diphtheria
..
.. ..
..
..
5
81
86
24 Isolation of typhoid bacillus from stools ..
1
2
3
Includes one doubtful.
25 Anthrax
. . ..
..
..
..
. .
1
1
26 T umours and section-cutting
.. ..
. .
. .
8
27 Tetanus
.. ....
..
. .
..
2
2
28
Silk for sterility
..
..
..
..
. .
. .
1
29 Miscellaneous ..
..
..
..
. .
. .
. .
19
30 Mosquitoes .
. . .
. .
. .
. .
. .
2
(1 culex and 1 anopheles).
31 Water samples for chemical analysis
..
. .
. .
498
32
Do.
for bacteriological examina
¬ t i o n .
. .
. .
634
(484 samples from the
experimental filters at
Guindy.)
33 Unsuitable
..
..
..
.. . .
. .
51
Total
. .
. .
4,029