196 



AFRICA 



interference ; while the north and east of the continent- 

 is dominated by the vast mass of Eurasia from which no 

 moisture comes. The relative lowness of most of northern 

 Africa, as contrasted with the high elevation of the 



FEET 

 6000 

 3000 

 IBOQ 



eOO O 500 1000 



IOO fathom line. 



FIG. 71. Physical Features of Africa. 



southern extremity, also permits much less condensation. 

 Owing to those circumstances, in southern Africa the 

 place of the desert is taken by a vast extent of very dry, 

 but not desert, grass-land. 





