POPULATION DISTRIBUTION 



Urbanized Areas 



1.000,000 



500.000 



250.000 



50,000 



Circles proportional 

 to population 



extent of urbanized areas 



4( 25.000 - 50,000 

 ■ 10.000 ' 25.000 

 • 2.500 - 10.000 



Rural populaiion 

 1.000 2.500 

 500 



^ao"-'' 



Figure 2. Population distribution in 1970 (.Wood and Fernald 1974), 



274 



