294 



Kansas State Board of Agriculture. 



FIG. 230. The smoothing harrow used as a drag. 



FIG. 231. A land roller. 

 SMOOTHING HARROWS. 



Often called spike-tooth or drag harrows. They are made of pipe, 

 U-bar or wood frames. There is very little difference between the first 

 two ; the latter is not quite as good. Teeth are made in two sizes, % - and 

 %-inch, with round, square or diamond-shaped cross section. Tooth 

 fasteners are usually constructed so that the teeth will not be lost if 

 the fasteners become loose. On different harrows the teeth per foot width 

 of ground passed over varies from five to eight, and on lever harrows 

 the teeth can be angled to obtain the work desired. 



Harrow carts permit the operator to ride without unduly adding to 

 the draft. Wide tires and good bearings should be looked for when pur- 



