30 JETHRO WOOD; 



This standard is broad, stout, strong ; and 

 rises from the fore and upper part of the 

 mould-board, being east with if, and being a 

 projection or continuation of the same from 

 where the fourth and fifth sides meet. Its 

 figure, strength, and arrangement are such 

 as best to secure the connexion, and to enable 

 the standard thus associated with the beam, to 

 bear the pull, tug, and brunt of service. 

 By a screw bolt and nut properly adjusted 

 above the top of the standard and acting 

 along its side, assisted, if need require, 

 by a wedge for tightening and loosening, 

 the beam may be raised and lowered ; and the 

 mould-board, with its cutting edge, enabled to 

 make a furrow of greater or smaller depth, as 

 the ploughman may desire, and a latch and 

 key fixed to the beam, and capable of 

 being turned into notches, grooves, or depres- 

 sions on one edge or narrow side of the stand- 

 ard, serves to keep the beam from settling or 



