454: 



Farm Mechanics. 



In making earth roads it is particularly important not 

 to make them wider than necessary because the narrow road 

 is always more quickly and better drained and lack of 

 drainage more than anything else will destroy the earth 

 road. 



FiG.215. View of one type of road machine, Champion road grader. 



If the soil contains cobble stones everything larger than 

 one inch in diameter should be thrown out, otherwise they 

 will form ruts. 



If, in establishing the necessary grades on the earth 

 roads, fills must be made, this filling should be done sys- 

 tematically, distributing the earth in uniform layers which 

 are thoroughly firmed with the roller as the work pro- 

 gresses. 



