148 



PROCEEDINGS OF THE ACADEMY OF 



[April, 



pq 



§ S 





& 



3 o 



O r^ 



^ o -< ^ 





o 

 ci 



O 

 ^ d 







ID 



o 



;-. 



o 



— ■ CD 



c -— :: o 

 p:3 pi.P^ 





pq 



-^ 



^-H 



'S^ 

 ^ 



o 

 5 



3 c 





o 

 ^ I 



It 6 







