■•^Sii?' 



POPULATION DISTRIBUTION 



Urbanized Areas 



1.000.000 



500.000 



250.000 



50,000 



Circles proportional 

 to population 



extent of urbanized areas 



<t 25.000 50.000 

 ■ 10.000 ' 25.000 

 • 2.500 ■ 10.000 



Rural populalion 

 » 1.000 2,500 



500 



Figure 



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



