THE FARM 



331 



11. What were the early methods of wheat harvesting? What has been the 

 effect of harvesting machinery (a) on the labor required to raise wheat; (b) 

 on the cost per bushel? 



12. How much wheat is used per acre as seed? How deep is it put into the 

 ground? When is wheat fit for harvesting? 



13. Describe early methods of threshing? What advantages are there from 

 threshing in the field immediately after harvest? In what sections only 

 can this practice be followed? What are several purposes in stacking 

 wheat or in housing it in barns before threshing? W 7 hat is the "chaff" 

 when wheat is threshed? 



FIG. in. Cutting and binding wheat in the old way. 



14. What is the range in yield of wheat per acre in the United States? At 

 eighty cents per bushel, what value is represented in the 900 million 

 bushels of the 1 9 1 4 wheat crop ? Allowing six bushels per person for home 

 consumption in the United States, what was the excess for export? 



15. Describe the various steps in making wheat flour. What is meant by 

 the "bolting" of flour? 



16. In milling wheat, about what per cent is separated as bran? How does 

 bran differ from shorts? What is "whole wheat flour," and how does it 

 differ from graham flour? What is "self-raising" flour? 



