EXERCISE 42 

 A STUDY OF THE PLOW 



Object. To study the structure of the plow and to be- 

 come familiar with the different parts and their purpose. 



Explanation. The plow is the most generally used of 

 all farm implements. The purpose of the plow is to invert 

 and pulverize the soil and to turn under weeds and other 

 vegetation. Its construction is not complex, and when prop- 

 erly adjusted, it is easy to operate. If improperly adjusted, 

 the plow is often difficult to operate, and it does an inferior 

 grade of work. The principal parts of a plow are the share, 

 landside, and the moldboard. 



Equipment. 1. A walking plow. 



2. A riding plow. 



3. A three-foot rule. 



4. A three-foot tape. 



Directions. Make the necessary measurements and ob- 

 servations to answer the following questions. 

 Record answers in the following outline form : 



168 



