18
SAMPLE V.—TAP IN NORTHERN CORNER FROM A PILLAR
FOUNTAIN NEAR MUNICIPAL HOSPITAL.
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 .
Name of Bacilli.
Group and
Remarks.
Bile salt lactose, medium.
+
-
1 tube of 20 cc
... ... ... ...
1
... 1 + - - - - - + +
I B. Grunthal... Group 1,10,
2 tubes of 10 cc.
... ... ... ...
2
...
2 + - - - - - + + I
Do.
...
,, II,nil.
3 ,, 5 cc.
...
. . .
. . . . . .
. . . ... 3
. . .
. . .
3 + - - - - - + - I B. Vesiculosus
...
,, I I I , n i l . n i l .
3 „
1 cc. . . .
. . .
. . . ... 2
1
4 + - - - - - + + I B. Grunthal
...
,, IV,nil.
3 , , 1 . c c
... ... ... ......
3
5 + - - - - - + + I
Do.
3 „
.01 cc. . . .
... ...
...
...
3
6 + - - - - - + - I B. Vesiculosus.
7 + - - - - - + + I B. Grunthal.
Fœcal bacilli in 1 cc. and upwards.
8 +- - - - - + + I
Do.
... Class I, nil.
9 + - - - - - + - I B. Vesiculosus
... ,, II,nil.
No vibrios in 100 cc.
10 +
- - - - - + - I
Do.
,, III,10.
REPORT.
The enumeration of the total counts has been omitted owing to an accident in the Laboratory.
From the bacterial standpoint the samples from the west well and collecting chamber requite good.
The east well sample is not so good but from the nature of the organisms present it is apparent that it
undergoing a great deal of natural purification. The water in the distributary system shows a worse state
there has been a ten-fold increase in the number of excremental organisms.
The west well water is harder than the east well, but the latter contains more organic matte.
Chemical Analyses.
SAMPLE I.
SAMPLE II.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Colourless and clear.
Smell.
None.
None.
QUANTITATIVE.
Total solids
...
...
. . .
...
. . . Parts per 100,000 ...
24.600
43.800
Temporary hardness ...
...
...
...
Do.
...
11.500
19.500
Permanent hardness ...
...
...
...
Do.
...
0.500
0.500
Total hardness
...
...
...
...
Do.
...
12.000
20.000
Chlorine
...
...
. . .
...
...
Do.
1.065
1.420
A mmoniacal nitrogen ...
...
...
. . .
Do.
...
0.002
Trace.
Albuminoid nitrogen
...
. . .
...
Do.
...
0.003
Trace.
Oxygen absorbed (Tidy's Frocess)
...
. . .
Do.
...
0.019
0.029
Nitric nitrogen
...*
. . .
...
. . .
Do.
0.062
0.125
QUALITATIVE.
N itrites
..
...
...
..
. . .
. . .
. . .
. . .
. . .
Nil.
Nil.
Sulphates
. . .
. . .
. . .
. . .
. . .
. . .
. . .
. . .
Present.
Present.
Phosphates ...
...
...
. . .
. . .
. . .
. . .
. . .
. . .
Nil.
Nil.
Iron, poisonous metals
. . .
...
...
...
. . .
...
. . .
Nil, nil.
Nil, nil.
SAMPLE V.
Physical appearances.
Colour and
Transparency.
Colourless and clear.
Smell.
None.
QUANTITATIVE.
Total solids ...
...
...
. . .
. . .
...
. . .
Parts per 100,000
...
42.000
'Temporary hardness
...
...
. . .
...
...
Do.
..
19.500
Permanent hardness
..
...
. . .
...
...
Do.
...
0.500
-Total hardness
...
...
. . .
...
. . .
...
Do.
...
20.000
Chlorine
...
...
...
. . . ...
..
. . .
Do.
...
1.420
Ammoniacal nitrogen
...
...
. . .
. . .
. . .
Do.
. . .
0.003
Albuminoid nitroge
...
...
...
...
...
D o .
...
0 . 0 0 2
'Oxygen absorbed (Tidy's Process)
. . .
. . .
. . .
Do.
...
0.029
Nitric nitrogen
...
..
...
. . .
...
. . .
Do.
...
0.087
QUANTITATIVE.
Nitrites
..
...
...
...
...
...
...
...
... ...
...
Nil.
Sulphates
...
...
...
...
... ... ... ... ...
... ...
P r e s e n t .
Phosphates ...
..
...
...
... ... ... ... ... ...
Nil.
Iron, poisonous metals
...
..
... ...
...
...
...
...
...
Nil, nil.