THE WHEAT CT7LTUKIST. 209 



end of the plates is worn out, the ends can be changed 

 by simply taking out a small bolt, which secures the 

 plates to the cast-iron standards, and turning the dull 

 ends upward. This arrangement provides an econom- 



FIG. 84. Alden's Cultivator. 



ical tooth for such heavy cultivators. The teeth can be 

 adjusted to run at any desired depth in a few seconds ; 

 and all the teeth and the frame can be elevated above 

 the ground several inches, for convenient transportation. 

 This cultivator is employed extensively by grain-grow- 

 ing farmers for cultivating stubble ground after harvest, 

 for the purpose of rooting up grass and young, noxious 

 weeds, and covering the seeds of troublesome plants, 

 so that they will readily vegetate, and thus facilitate 

 future extermination. Besides this, the teeth can be 

 put down so as to run six inches deep, thus pulverizing 

 the entire ground quite as effectually as the work can 

 be performed with a plough. 



