of Bartlett's Cultivator, 



443 



is fixed ; a a, the position of the axle gudgeons ; b, movable 

 staple for attaching the draft trees ; c, iron scrapers fastened 



to the bar d, the use of which scrapers is to clean the roller, 

 and they are of such a length as almost to touch the blocks. 

 Each scraper is protected by a piece of wood (<?), to prevent 

 it from being forced back by the earth on the roller. These 

 pieces of wood are fastened to the bar^ as the scrapers are 

 to the bar d. The general appearance of the roller when at 

 work will be easily understood. {Jig. 90.) 



Though we have no doubt that such a machine as the above 

 may occasionally be found useful, yet we are averse from 

 recommending agricultural implements or machines which are 

 at all Complicated. Wherever the soil and climate are favour- 



