( 31 ) 
May, 
1917 :— 
August, 1919 :— 
Mm. 110 
2 
,. 115 
2 
Mm. 160 
1 
, 120 
2 
Mean, mm. = 161-5 
, 125 
9 
, 130 
24 
, 135 
37 
1913 Oysters 
'. 
, 140 
78 
, 145 
45 
September, 1913 :— 
, 150 
, 155 
, 160 
85 
50 
44 
Mn 
a. 25 
, 30 
, 35 
, 40 
, 45 
, 50 
, 55 
2 
1 
13 
29 
34 
136 
149 
Me 
, 165 
, 170 
, 175 
an, mm. = 147 '95 
18 
4 
1 
> 
September, 1917 : — 
' 
, 60 
164 
Mm. 110 
1 
, 65 
151 
,. 115 
2 
. 70 
157 
, 120 
2 
, 75 
229 
, 125 
4 
. 80 
158 
, 130 
13 
. 85 
81 
, 135 
12 
, 90 
21 
, 140 
26 
, 95 
7 
, 145 
14 
Mean, mm. = 67-21 
, 150 
29 
, 155 
14 
, 160 
15 
January, 1914 :— 
, 165 
, 170 
10 
6 
Mm. 50 
55 
14 
24 
, 175 
2 
, 60 
38 
Mean, mm. = 148 -Si 
} 
' 
, 65 
41 
January, 1918 : — 
. 70 
34 
72 
Mm. 110 
1 
75 
,. 115 

. 80 
50 
, 120 
'. 3 
. 85 
60 
, 125 
2 
, 
, 90 
38 
, 130 
8 
, 
, 95 
8 
, 135 
6 
, 
, 100 
11 
, 140 
11 
Mean, mm. = 76-31 
, 145 
2 
, 150 
7 
, 155 
April, 1914 :— 
, 160 
'. 3 
Mm. 45 
3 
Mean. mm. = 139'4 
„ 50 
18 
March, 1918 :— 
. 55 
21 
Mm. 160 
1 
, 60 
30 
Mean, mm. = 161-5 
, 65 
, 70 
64 
82 
February, 1919 : — 
, 75 
132 
Mm. loO 
1 
. 80 
78 
„ 155 
1 
, 85 
39 
„ 160 
2 
, 90 
93 
„ 165 
1 
, 95 
9 
„ 170 
1 
, 100 
6 
Me 
an, ram. = 161 "5 
Me 
an, mm. = 76-57 
