HOW TO STUDY FARM MACHINERY 279 



Working Instructions: Follow instructions under exercise in 

 Sec. 251, and, in addition, the machine may be tested 

 as outlined in Sees. 277 and 279. 



253. Study of Fertilizer Drills, Manure and Straw 

 Spreaders. 



Requirements: To make a careful study of different types of 

 fertilizer and limestone drills, including the agitator, 

 force-feed and end-gate type. To study manure spread- 

 ers and straw spreaders; also straw-spreading attach- 

 ments for manure spreaders. 



Tools Needed : Same as in Sec. 251. 



Preliminary Instruction: Keeping up the fertility of the soil 

 is one of the greatest problems of a permanent agricul- 

 ture. The use of fertilizer drills, manure spreaders 

 and straw-spreaders for distributing materials on the 

 soil greatly facilitates this work. 



Working Instruction : Follow instruction in Sec. 251 . 



254. Study of Haying Machinery. 



Requirements : To make a careful study of the various classes 

 of haying machinery the mower, rakes of different 

 types, tedders, loaders, stackers, presses and other hay- 

 ing machinery such as is used in the community. 



Tools Needed : Same as in Sec. 251 . 



Preliminary Instruction: The hay crop is one of the most 

 valuable of the American farmer. By many it is given 

 little consideration; much hay is lost due to lack of care 

 in handling. Modern machinery has made it possible to 

 handle the hay crop with a minimum amount of labor. 



Working Instruction: Follow instruction in Sec. 251. 



