IMPLEMENTS, &c. OF THE FARM. 437 



wide, by half an inch or five-eighths thick, and should be seven- 

 teen to eighteen inches high from top to bottom, and left square 

 on both the front and hinder edge. 



"A half inch bolt will suffice to fasten it in the mortice 

 through the beam, which should be at least four by three inches 

 at that part. A band of round, half inch iron, should also be 

 fixed on that part of the beam, so as to rest against the front 

 edge of the coulter above, and its back edge below, which will 

 keep it firmly fixed in the mortice." 



TIIE ROLLER. 



The Roller is constructed of wood, stone or cast iron, accord- 

 ing to the convenience or purposes for which it is to be used. 

 For tillage lands, the roller is used to break the lumps of earth, 

 and to press in and render firm the ground about newly sown 

 seed. So important is the roller become, within a few years, 

 that no farmer can consider his stock of agricultural imple- 

 ments complete without it. 



They are principally constructed on two plans; the one con- 

 sists of a single cylindrical piece of timber, set in a frame, in 

 which it revolves by gudgeons; the other, of two such timbers, 

 each of which is half the length of the single one. The latter 

 is preferable in the turning of the angles of fields and lands. 

 Some prefer the stone roller. There are also a variety, some 

 of which are patented. 

 37* 



