152
No. 1. BED. SECOND SERIES,
Made up January 18th, 1911. Sand 2' deep.
Rate of Filtration 250 yards gallons per day and upwards.
Ainounts of samples tested were:-
race, cc, lec Agar plates.
race, lcc, 2ec, 5cc Glucose Peptone water.
15cc, lec, 2cc, 5cc, 10cc, 20cc Lactose Peptone water.
Results are given on to "Coli Group" Basis, see p. 119 for details. Organisms not further worked out.
For the total unfiltered water taken on same days as these samples, see previous pages.
TABLE XIII.
Date.
Ref. No. No.
Rate of Filtration.
No.
I
Bed.
Total colonies in lec on Agar
37°C for
48 hours.
No. of cultures
Classification on the "Coli Group" Basis.
isolated.
27.8.11
01
1
250
overgrown
6
28.3.11
05
2
294
overgrown
3
29.3.11
09
3
294
80
4
+ (S -- S+) in 5cc (Dulcit not
tested)
+(S+D Indol) in 10cc.
+(SD+) & (S+D+) in 10cc
30.3.11 013
4
294
60
3
+(8+ D - Indol-) in 10ce
31.3.11 017
10
5
294
100
6
1.4.11
021
6
294
71
3.4.11 025
7
294
140
ลง
4.4.11
029
8
294
30
3
+(SD+) in 5cc
6 +(S+D) in 10cc
+(S+D) in 10cc
+(S+D) in 10cc
5.4.11 033
9 250
60
3
+ (S+ D — ) in 10cc
6.4.11 037
10 250
65
Negative up to 10cc
7.4.11 041
11
250
80
5
+(S+D) & (S-D-) in 20cc
8.4.11 045
12
250
55
10.4.11 049
13
294
36
11.4.11 053
14
290.
70
12.4.11 055
15 290
-overgrown
2
13.4.11 057
21.4.11 066
16 290
50
17
400
50
+(S+D) in 5cc
+(S-D+) in 5ce
Negative up to 10cc
+(S+D-Indol-) in 10cc
+(S+D) in 5cc
+(SD) in 10cc
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