122 ECONOMIC IMPORTANCE OF GREEN PLANTS 



into flour. The germ, or young wheat plant, is sifted out during 

 this process and made into breakfast foods. Flour making forms 



WHEAT V/ ~ N 



ESS /SO to 640 bushels per square mile ^ 

 W&over 640 ... > 



Wheat Crop in United States Percentage Source 



20 30 M 60 7ft 80 



Minnesota Kansas N.Dak. Neb. Ind. S.D. Wash. O. Mo. Other States 



the chief industry of Minneapolis, Minnesota, and of several other 

 large and wealthy cities in this country. 



Other Grains. Of the other grain and cereals raised in this 

 country, oats are the most important crop, over one billion bushels 

 having been produced in 1910. Barley is another grain, a staple 

 of some of the northern countries of Europe and Asia. In this 

 country, it is largely used in making malt for the manufacture of 

 beer. Rye is the most important cereal crop of northern Europe, 

 Russia, Germany, and Austro-Hungary producing over 50 per 

 cent of the world's supply. One of the most important grain crops 

 for the world (although relatively unimportant in the United 

 States) is rice. The fruit of this grasslike plant, after thrashing, 

 screening, and milling, forms the principal food of one third of the 

 human race. Moreover, its stems furnish straw, its husks make 

 a bran used as food for cattle, and the grain, when fermented and 

 distilled, yields alcohol. 



