126 THOMPSON YATES LABORATORIES REPORT 
TABLE III — continued 
No. 
Date 
Description and Source of Sample 
Dilution used 
Presence or Absence 
B. coli in quantity 
analysed 
Remarks 
' + 
1 5 
16 
«7 
19OO 
May i 5 
» l 7 
Dirt, side of Paddington, L'pool. 
,, ,, Brownlow Hill, ,, 
„ Crosshall Street, ,, 
,, Victoria Street, „ 
i.05grm.in iooc.c. 
1.2 „ ,, 50c. C. 
Water 
1 .04 ,, ,, I OO C.C. 
.65 ,, „ iooc.c. 
Water 
1. 91 „ ,, IOOC.C. 
Water 
* 4,400 per grm. 
Probably absent 
in .07 grm. 
Abs. in .03 „ 
Abs. in .02 „ 
Damp sample, taken 
at side of road, op- 
posite a fish shop, 
by no means clean, 
where the gutter is 
always wet 
Dry sample 
No rain since May 
12. May 17 a dry, 
dusty day ; dry 
sample 
Dry sample 
18 
» '7 
„ St. John's Lane, „ 
1 ,200 
(at least) 
per grm. 
Damp sample 
1 9 
South Gate St George's Hall 
1.05 ,, IOOC.C. 
Abs. 
n .06 „ 
Uvy sample 
20 
!- 
London Road ? Seymour St., ,, 
.82 ,, ,, 50C.C. 
Abs. 
n .05 „ 
2 1 
!- 
Seymour Street 
Abs. 
n .02 „ 
Dry sample 
22 
>» '7 
Russell Street, ,, 
Abs. 
n .016,, 
Dry sample 
2 3 
Brownlow Street, 
85, ,1 OO C.C. 
Abs. 
n .025,, 
Dry sample 
2 + 
,, Ling Street ,, 
.49 , 1 00 c.c. 
Abs. 
n .03 „ 
Dry sample 
25 
7) 3 1 
„ Brae Street ,, 
I.JI „ „ iooc.c. 
Abs. 
n .045,, 
Dry sample 
26 
.7 3 1 
„ Kensington Park, ,, 
•9+ „ » 5° cc. 
(a) Ab 
s. in .06 ,, 
Dry sample 
» (#) 
(une 2 
.94 „ „ 50C.C. 
(b) Abs. in .06 ,, 
Dry sample 
27 
May 3 1 
„ Jubilee Drive, ,, 
49 » 50c. c. 
*{a) 29,900 per grrn 
Wet sample 
n m 
28 
[une 2 
May 3 1 
FH T 
,, Ldge Lane, „ 
• 49 » » 5 oc - c - 
1.07 „ ,, 50C.C. 
\{b) 2 
V) 2 
,3 5° „ 
,100 „ „ 
Fewer total organisms 
and many fewer B. 
coli than on May 3 1 
Wet sample 
29 
[une 2 
May 3 1 
Marmaduke Street, ., 
1.07 „ „ 50C.C. 
.87 „ „ IOOC c. 
m 
*(a) 
327 >, » 
3+o „ „ 
More total organisms, 
but not so many B. 
coli 
Wet sample 
» (*) 
June 2 
.87 „ ,, iooc.c. 
(*)abs. 
in .001 grm 
3° 
May 3 1 
Brownlow Hill, „ 
.55 „ „ 50 c.c. 
(a) abs 
in .03 ,, 
Dry sample 
» (*) 
June 2 
• 55 » » 50c. c 
(i) abs 
in .03 ,, 
3 1 
.,(*) 
Ma}' 3 1 
June 2 
College Grounds, University 
College, L'pool. 
.71 ,, ,, 50c. c. 
.71 „ „ 50 c.c. 
(a) abs. in .04 ,, 
(J>) abs. in .04 „ 
Dry sample 
32 
July 7 
Dust, middle of road, Grasmere 
1 in 100 
Abs. 
in .04 „ 
Dry sample (Weather 
July 6, very wet) 
33 
„ 8 
,, „ ,, Grange-over-Sands 
1 in 100 
3,900 per grm. 
Dry sample 
* Numbers 
are only approximate. f These numbers ai 
e a maximum. The dilutions of May 31 kept and plated again. 
