9
ENTRAL JAIL, SALEM.
WATER SAMPLES TAKEN-17TH JUNE 1912.
Bacterioloaical Analyses.
SAMPLE 1.—KITCHEN WELL.
N u m b e r .
L a c t o r 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 m d o l . M o l o t i l i t y . G r o u p .
Total colonies per cc. on agar at 37° C.-2,800.
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc
1
1 + - - - - - + -
I B. Vesiculosus
Group 1,5.
2 tubes of 10 cc.
2
2 + - - + - - + -
I B. Acidi lactici
„ II, nil.
3
„
5 cc.
3
3 + + - - - - + - IV B. Coscoroba
„ III, nil.
3
„
1 cc.
3
4 + + - - - - + - IV
Do.
„ IV, 5.
3
„
·1 cc.
3
2
5 + - - - - - + -
I B. Vesiculosus.
„
3
„
·01 cc.
1
3
6 + - - - - - + - I
Do.
7 + - - - - - + - I
Do.
Class I, nil.
Foecal bacilli in 1 cc. and upwards.
8 + + - - - - + - IV 13. Coscoroba
„ II, 5.
9 + + - - - - + - IV
Do.
„ III, 4.
No vibrios in 100 cc.
1 0
+ + - - - + - - IV B. 112
Undetermined, 1.
SAMPLE II.--HOSPITAL WELL.
Total colcnies per cc. on agar at 37° C.-1.,600.
1 + - - - - - + -
I
B. Vesiculosus
Group I, 7.
Bile salt lactose, medium.
+
-
2 + + - - - + - + IV
B. Cloacec
„ II, nil.
3 + - - - -
- + - I B. Vesiculosus
„ III, 2.
4 + - - - - - + +
I B. Grunthal
„ IV, 1.
1 tube of 20 cc.
1
5 + - - - - - + - I B. Vesiculosus.
2 tubes of 10 cc.
2
6 + - - - - - + - I
Do.
3
„
5 c c .
3
7 + - - - - - + +
I B. Grunthal.
3
„
1 c c .
3
8 + + + + - + - - III B. 67
Class I, nil.
3
„
· 1 c c .
1
2
9 + + + + - + - - III Do.
„ II, 2.
3
„
· 0 1 c c .
3
10 + - - - - - + - I B. Vesiculosus
„ III, 8.
Fcecal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
REPORT.
There has been some confusion between the samples taken for bacteriological analysis, as the designations
on the outer covers of the sample bottles and those written on slips of paper attached to the bottles do not
correspond. The latter have however been assumed to be correct since in five out of six previous examina
tions, the water from the kitchen well has been chemically and bacteriologically the inferior, and on the
present occasion it is still chemically the inferior. Little that is new can be said of these waters. A water
that is so bad as is that of the kitchen well should not be used for drinking purposes. Chemically one can
say of the water of the hospital well that the pollution is all old and has undergone complete oxidation, so
that, barring the question of its giving rise to digestive troubles on account of its saline constituents, it might
be used safely enough after boiling. Its degree of bacterial impurity renders this last precaution eminently
d e s i r a b l e .
Chemical Analyses.
KITCEN
WELL WATER.
HOSPITAL
WELL WATER.
Physiml appearances.
Colour and
Transparency
Colourless and clear.
Colourless and
clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
Parts per 100,000
113·000
94·000
Temporary hardnes
Do.
35·000
37·60
Permanent hardnes
Do.
30·000
27·500
Total hardness
Do.
65·000
65·000
Chlorine
Do.
11·360
11·360
Ammoniacal nitrogen
Do.
0·034
Trace.
Albuminoid nitrogen
Do.
0·012
Trace.
Oxygen absorbed (Tridy's Process)
Do.
0·091
0·027
Nitric nitrogen
Do.
2·250
0·875
QUALITATIVE.
Nitrites
Present.
Nil.
Sulphates
Present.
Present.
Phosphates
Nil.
Nil.
Iron, poisonous metals
Nil, nil.
Nil, nil.
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