ECONOMIC CLASSIFICATION OF GRASSES 11 



TABLE XII 



Production (Bushels) of Grain of Kafir and Milo for the Five 



Leading States in 1909 



1. Texas 5,860,444 4. California 938,049 



2. Kansas 5,115,415 5. New Mexico .... 543,350 



3. Oklahoma .... 4,658,752 



The production of rice has shifted in recent years 

 from the South Atlantic coast to Louisiana and Texas, 

 where upland rice is now grown. Over nine-tenths of 

 the acreage of this crop is now in the two last- 

 mentioned states: 



TABLE XIII 



Production (Bushels) of Rough Rice for the Five Leading States 

 IN 1909 



1. Louisiana 10,839,973 4. South Carolina . . . 541,570 



2. Texas 8,991,745 5. Georgia 148.698 



3. Arkansas 1,282,830 



10. All the grains mentioned may be used for the pro- 

 duction of starch and alcohol. — From the commercial 

 standpoint, the chief starch-producing plants of the 

 world are corn, wheat, rice, potatoes and arrow-root. 

 Wheat is usually too valuable a human food to be used 

 for any other purpose. Corn is the chief source of starch 

 in the United States, although the other grains may be 

 used when available. In the manufacture of starch from 

 corn, the grain is soaked but not allowed to ferment. The 

 softened kernels are then ground in water and the starch 

 purified. A bushel of corn will yield twenty-eight pounds 

 of starch and thirteen pounds of refuse available as 

 cattle food. In Europe the potato is the chief source of 

 starch. 



