DISTRIBUTION OF P>. COM COMMUNE 
^5 
TABLE Via 
Filters at Rivington 
Number of 
Sample 
Bottle 
Date 
Source 
B. col 
commune 
5 
Jan. 
29, 1900 
From surface of No. 6 Filter. 
Taken with full head of water 
on bed. This bed has been 
worked up for 60 days since 
last cleaning ••• ... 
m .02 gnu. 
141 
» 
Same as last ... 
Absent 
in .1 grm. 
68 
From surface of No. 7 Filter. 
Taken after head of water had 
been reduced to 1 foot. This 
bed has been in work for 38 
days since last cleaning 
Absent 
n .02 grm. 
7 
Same as last ... 
Absent 
in .1 grm. 
57 
Feb. 
24, 1900 
Surface of Filter No. 7, bed in use 
since Dec. 22nd, 1899 
134 
57 
•3+ 
65 
°+ 
"5 
Mar 
. 10, 1900 
Six different Places in No. 5 Filter 
Bed, along centre line equally 
distant from each other 
17 
1 
137 
D 
