PLATE 221. 





,1, JS>i^''A-<''^ 1 ^ 





?4 





Q _• 



z := 



3 1 



> I 



O = 



J - 



>^ "^ 



CQ .^ . 



HH = r 



as £ -i 



w J ^ 



ffi ; - 



H I 1; 



o 

 >^ 



H 



D 

 Q 

 Z 



w 



w 



W 





