( 15 ) 
Third year 
Fourth year 
Fifth year 
Sixth year 
Seventh year 
Eighth year 
fFebruary 
(^August 
(^February 
(^August 
('Februarj' 
(^August 
(^February 
(^August 
(^February 
(^August 
February 
Short 
Diameter. 
(mm.) 
Weight. 
Grms, 
102 
110 
55 
75 
118 
125 
100 
125 
132 
139 
150 
175 
146 
152 
205 
. 235 
157 
162 
275 
315 
166 
360 
Relation between Weight and SJwrf Diameter. 
The measurements have been analysed to give a comjiarison 
between weight in grammes and short diameter in milbmeters. 
The results are given in Appendix VI. From these figures 
we obtain the following results : — 
Mean Weight. 
x>it;au oiiuri 
Diameter. 
Mean Weigh,. -- - 
Grm3. 
mm. 
Grms. 
mm. 
5 
57-5 
125 
126-4 
15 
74-6 
135 
129-3 
25 
85-2 
145 
129-8 
35 
92-9 
155 
132-3 
45 
98-0 
165 
133-2 
55 
103-1 
175 
136-2 
65 
105-0 
185 
138-5 
75 
109-7 
195 
139-1 
85 
113-2 
205 
141-4 
95 
117-1 
215 
143-1 
105 
120-3 
225 
147-2 
115 
122-8 
235 
147-3 

— 
245 
148-3 
In my Administration Report (Marme Biology) for 1920-21 
I gave these measurements, but made the error of giving the 
mean short diameter as 1 mm. less than what it should have 
