270 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



H 



H 



H 



H 



H 



H 



N 



H 



H 



H 



H 



H 



H 



H 



H 



<N 



<M 



<N 



<N 



(M 



<N 



<N 



i— i 



<M 



<N 



<N 



<N 



<N 



<N 



<m 



d M d 



S3 -d P-i o 

 B > cj ^ 

 J ■* O Si 



■<# 



CO 



CO 



-* 



CO 



<N 



1 <N 



l> 



<N 



,_! 



T* 



O 



<N 



(N 



C-J 



<M 



<N 



<N 



<N 



<N 



1 <M 



<N 



<N 



<M 



<N 



<N 



<N 



<M 



Is TO 



CO 



co 



CO 



co 



CO 



CO 



CO 



co 



CO 



co 



co 



co 



CO 



CO 



co 



© 



o 



o 



d 



©■ 



©' 



© 



©' 



©" 



© 



© 



©' 



©* 



©' 



© 



CO 



OS 



as" 



OS 



OS* 



©' 



© 



© 



o 











id 





































&&&&*&&&&&&&&&&&£&&&*& ^'^jzi^^^ 



oooooooooooooooooooooo 



cocococococococococococococococococococococo 



OiOOiOiOiOiOiOiOiOiO 



o o o o o o 





fcnl 



o 



pq 



o 



S3 



pq 



o 



S3 

 pq 





!>> 



d 



o 



o 



S3 



GO 



w 



o 





£ 



d 

 o 



a 



CO 



o 



|Z5 



£ 



S3 



O 



CO 



VH 



o 



S3 



pq 



c 

 pq 



— I it» ai o> 



IS 





pq 



o 

 o 

 P-I 



o 



S3 



pq 



o 



S3 



pq 



S3 



pq 

 d 



pq fc 



>> 

 o 



S3 



pq 



"d 

































Length 



when 



iberate 



in cms. 















lO 





lO 



UO 











lO 



co 



<N 



co 



<N 



i— i 



CO 



-^ 



<M 



CO 



<N 



I— 1 



co 



© 



<N 



<N 



<N 



<N 



<N 



<N 



<N 



<N 



(N 



<N 



<m 



<N 



<N 



<M 



<N 



<N 



<N 



H 

































