1 92 Harshberger. — Maize: 



Illinois, Missouri, Iowa, Kansas and Nebraska have soils and 

 climates especially adapted for the growth of maize. They 

 form collectively the great corn belt, and are also known as 

 the surplus States. Regions protected from late frosts will 

 be eminently suited for most large and small fruits. Such 

 places are situated in western New York, Vermont, Pennsyl- 

 vania, peninsular Michigan, Delaware, peninsular Maryland 

 and California, including the irrigable lands. The irrigable 

 lands have very great fertility, and are singularly enduring to 

 tillage. Their vast extent permits a great diversity in the 

 product of the watered fields. Thus in Montana and Idaho 

 the natural products, grasses, are grown, while in New 

 Mexico and Arizona the finer fruits may be advantageously 

 cultivated. Future research will reveal the particular regions 

 where definite crops, such as cotton in the South, will be 

 raised exclusively by reason of the climatic, geological and 

 meteorological conditions. 



The national system of rotation will cause the supply re- 

 quired for use in any section to be drawn from the region 

 where the crop, as a major one, is raised most advantage- 

 ously. The production of maize illustrates this. The seven 

 States of Ohio, Indiana, Illinois, Iowa, Missouri, Kansas and 

 Nebraska are the "corn surplus States," practically furnish- 

 ing all that enters commercial channels. Outside of these 

 seven States the yield is practically of only local interest. 

 The crop is consumed where grown, and it exerts an influ- 

 ence on commercial corn only as it supplies home requirements 

 or makes necessary a demand on the surplus States. The 

 great bulk of the corn crop is used at home, in fact, is con- 

 sumed upon the farms where grown, and but a very small 

 proportion is ever shipped abroad. 



