PLATE 4. 



H 

 I 

 m 



S 

 > 



z 

 m 



w 



O 



r~ 

 O 

 Q 



O 

 > 



> 



03 



o 

 > 



H 

 O 



X 



< 



> 



-i 



O 



H 

 C 

 Q 

 > 



05 



O 



X 



o 

 > 



c 



r— 

 -< 



00 



o 



