k K \ X I E S AGR I C U L T U K K . 



and thoroughly harrowed and cultivated alternately 

 until the land is cleared of all weeds and weed seeds. 

 The subsoil should be loosened about ten inches 

 deep with a stiff tooth subsoiler. See III. i. 



1. FOUR-HORSE SCBSOH.ER. 



Prepare a 

 Plan. 



Then prepare a plan, and work to it the same as 

 a mechanic working to a plan prepared for a building. 



