THRESHING 83 



includes insurance, depreciation, and interest on 

 investment. 



QUESTIONS AND EXERCISES 



1. What is meant by threshing wheat? 



2. Explain the use of the flail. 



3. In what ways is the threshing floor an improvement 

 over the flail ? 



4. By making inquiry of farmers and implement dealers, 

 learn what makes and sizes of threshers are used in your 

 locality. If possible study a threshing machine and try to 

 learn the names and uses of its essential parts. It is interest- 

 ing to tell the story of what happens to wheat inside of a 

 thresher in operation. 



5. What advantages have steam engines over horses 

 as power for threshing ? 



6. What is the busiest threshing month in your vicinity ? 



7. How many men usually make up a threshing crew ? 



8. About how many bushels is considered a good day's 

 work in threshing ? 



9. Suggest reasons why exchange of labor among farmers 

 is often preferred to hired help. 



