62
SAMPLE V.—TAP IN FRONT OF PUMPING STATION.
N u m b e r .
L a c t o s e .
S a c c h a r o s e .
Dul ci t e. A d o n i t e .
Inul i n.
Vo g e s a n d Pr o s k .
I n d o l .
Mot i l i t y.
G r o u p .
Name of Bacilli.
Group and
Remarks.
Total colonies per cc. on agar at 37° C.-2,250
Bile salt lactose medium
+
-
1 tube of 20 cc.
. . .
. . .
. . .
. . .
1
. . .
1
+ + -
- - - - -
IV B. 111
. . .
. . . Group I, nil.
2 tubes of 10 cc.
...
. . .
. . .
. . .
2
...
2 + + -
- - - - - IV
Do.
. . .
. . .
, , I I ,
n i l .
3 ,,
5 cc.
. . .
...
...
. . .
3
...
3 + + -
- - - - -
IV
Do.
...
...
„ III, nil.
3 „
1 cc.
...
. . .
. . .
. . .
3
. . .
4 + + -
- - - - -
IV
Do.
...
...
„
IV, 10.
3 „
. 1 c c .
. . .
. . .
. . .
. . .
3
. . .
5 + + -
- - - - -
IV
Do.
3 „
•01 cc.
...
...
...
...
2
1
6
+
+ -
- - - - -
IV
Do.
7
+ + -
- - - - -
IV
Do.
. . ... Class
I, nil.
Fœcal bacilli in .01 cc. and upwards.
8 + + -
- - - - -
IV
Do.
. . .
. . .
„
II, nil.
9 + +
-
- - - - -
IV
Do.
. . .
. . .
, , I I I .n
i l .
No vibrios in 100 cc.
10 + + -
- - - - -
IV
Do.
...
... Undetermined,
10.
SAMPLE VI.-TAP NEAR PORT RAILWAY STATION.
1 + +-
- - + - - IV B, 112
...
. . . Group I, nil.
2. + + + + - + + - -
III B. 67 ...
. . .
, , I I ,
n i l .
Total colonies per cc. on agar at 37° C.-750.
3 + +-
- - + - -
IV B. 112
. . .
. . .
„ III, 1.
4 +
+
-
- - + - -
IV
Do.
. . .
. . .
, , I V , 9 .
5 + + -
- - + -
- IV
Do.
Bile salt lactose medium.
+
-
6 + + -
- - + - -
IV
Do.
7 +
+ -
- - + - -
IV
Do.
. . .
. . . Class I, nil.
8 + + -
- - + -
- IV
Do.
...
...
„
II, 1.
1 tube of 20 cc.
. . .
. . .
. . .
. . .
1
. . .
9 + + -
- - + - -
1V
Do.
. . .
...
„ III, nil.
2 tubes of 10 cc.
. . .
. . .
. . .
. . .
2
...
10 ++ -
- - + - -
1V
Do
. . .
. . . Undetermined,9.
3
, ,
5 c c .
. . .
. . .
. . .
. . .
3
. . .
3 ,,
1 cc.
. . .
. . .
. . .
. . .
3
. . .
3
,, 1 c c .
. . .
. . .
. . .
. . .
...
3
3 „
. 0 1 c c .
. . .
. . .
. . .
. . .
...
3
Fœcal bacilli in 1 cc. and upwards.
No vibrios in 100 cc.
SAMPLE VII.—TAP IN FRONT OF POLICE STATION.
1 + + -
- - - + -
IV B. Coscoroba.
Total colonies per cc. on agar at 37° C.-600.
2 + + -
- - - + -
IV
Do.
... Group I, nil.
3 + + -
- - - + -
IV
Do.
...
,,
II, nil.
Bile salt lactose, medium.
+
-
4 + + -
- - - + -
IV
Do
—
,,
III. nil.
)
5 + + -
- - - + -
IV
Do.
IV, 10.
6 + + -
- - - + -
IV
Do.
1 tube of 20 cc.
. . .
. . .
. . .
. . .
1
...
7 + + -
- - - + -
IV
Do.
2 tubes of 10 cc.
. . .
...
...
...
2
. . .
8 +
+ -
- - - + -
IV
Do.
... Class
I, nil.
3
„
5 cc.
. . .
. . .
. . .
. . .
3
. . .
9 + + -
- - - + -
IV
Do.
II, 10.
3
„
1 cc.
. . .
. . .
. . .
. . .
. . .
3
10 +
+ -
- - - + -
IV
Do.
III, nil.
3
„
1cc.
. . .
. . .
. . .
. . .
. . .
3
3
,,
.01 cc
...
. . .
...
...
...
3
Fœcal bacilli in 5 cc. and upwards.
No vibrios in 100 cc.
—
REPORT.
S a mp l e I.—Unfiltered water from the Canal shows gross pollution as usual, both the fœcal and non-
fœcal organisms having increased in number.
Sample II .—From the settling tank also shows a decided improvement though the improvement is not so
well marked as in the previous quarter.
S a mp l e I I I . — As soon as the water reaches the filter-beds, deterioration begins, fœcal organisms increas-i-
ng hundredfold : the water remains the same even after passing through the filter-beds.
It is therefore quite clear that the filter-beds are not working satisfactorily they should be attended to.
The water in the distributary system has improved.
Chemically the water generally shows an improvement over the previous quarter.