IMPLEMENTS FOR STIFF SOILS. 181 



pendent of each other upon the axle, thus producing a self- 

 . cleaning movement. Of course the roller must only be used 

 when the land is so dry as not to stick. 



&quot; The following are the various uses to which this imple 

 ment is applied : 



&quot; 1. For rolling corn as soon as sown upon light lands ; 

 also upon strong lands, that are cloddy, before harrowing. 



&quot; 2. For rolling wheats upon light lands in the spring, 

 after frosts and winds have left the plants bare. 



&quot; 3- For stopping the ravages of the wire-worm and grub. 

 &quot; 4. For crushing clods after turnip crops, to sow barley. 

 &quot; 5. For rolling barley, oats, &c., when the plants are 

 three inches out of the ground, before sowing clover, &c. 



&quot; 6. For rolling turnips in the rough leaf before hoeing, 

 where the plants are attacked by wire-worm. 



&quot; 7. For rolling grass lands and mossy lands after com 

 post. 



&quot;8. For rolling between the rows of potatoes, when the 

 plants are several inches out of the ground. 



&quot; Cash prices, with travelling wheels complete, 6 feet 6 

 inches, 21 ; 6 feet, 19 10s. ; 5 feet 6 inches, 18.&quot; 



For still more deeply stirring, and for bringing weeds to 

 the surface of soil recently ploughed, a great variety of in 

 struments entirely unknown in America are in common use 

 here. They all consist of sets of tines, or teeth, placed be 

 tween a pair of wheels, and so attached to them that, by means 

 of, a lever, having the axletree of the wheels for a fulcrum, 

 the depth to which they shall penetrate is regulated, and they 

 may at any time be raised entirely above the surface, drop 

 ping and relieving themselves from the weeds and roots which 

 they have collected. Thus they may be described as com 

 bining the action of the harrow, the cultivator, and the horse- 

 rake. (The wire-tooth horse-rake is used as an instrument of 



16 



