ECONOMIC RESOURCES. 



81 



cj es o 

 £ n ^ 



o ^ 



a> 



□Q 



cu 







.3 iH 



a 



s <*> 

 o is 



o S 



.— . a; 

 .5 s? 



."o 



O o o 



-s I *• 



.2^ 



w 



( 235 ) 



