HARROWS 21 



and vigorous tools. Upon these mellower lands, 

 the spring-tooth harrow, types of which are shown 

 in Fig. 12, may follow the plow. Upon very hard 

 lands, these spring-tooth harrows may follow the 



12. Spring-tooth burrows, for working hard or medium- 

 hard lands, and to follow the disc or Acme. 



disc and Acme types. The final preparation of 

 the land is accomplished by light implements of 

 the pattern shown in Fig. 13. These spike -tooth 

 smoothing -harrows do for the field what the hand- 

 rake does for the garden-bed. If it is desired to 

 put a very fine finish upon the surface of the 

 ground by means of horse tools, implements like 



