Characters of the chief organism isolated.
Total
Colonies
in lec
on agar
48 hours
No. of
cultures
isolated
and
investi-
at 37° C.
gated.
Water filtered by No. 6 Filter Bed,-Continued.
Classification on the "Coli Group" Basis.
Age of
Ref.
Date.
No.
Filter in
No.
days.
21.12.10 81 40
49
22.12.10
83
41
50
23.12.10
85
42
51
24.12.10 87 43
52
28.12.10 89
44
56
29.12.10
ཚ
91
45
57
* 8 ANS N
Negative in 50cc original Lactose Peptone water.
Coli Group absent from 50cc of sample.
No Coli-like organisins in 50cc of sample.
25
Plated 50cc Lactose Peptone water.
25
25
N N N N N N
20
20
Negative in 50cc original Lactose Peptone water.
33
77
>>
75
"
+9
— 144 —
TABLE VIII.
O
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