- 7Sper cent of the whole 

 area, sown nitf, 

 15-39 fcrcent 

 5- 14 percent- 

 less than 5f>er ceni~ 



bO'Long.W Gr. 



MAP IV. DENSITY OF THE MAIZE CROP. 



As it needs more heat and moisture than wheat, the maize does not go so far to the west and 

 south. It is concentrated for export at the ports of the Rio de la Plata and the Parana, especially 

 at Rosario. The Argentine " com belt," the chief maize area, extends back of Rosario and 

 San Nicolas to beyond Casilda and Pergamino. 



To face p. 198. 



