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Plough including the Turn-wrest or Turn-wrist Plough, and 

 the Balance Plough, (u) the Sulky Plough, (12) the Potato Dig- 

 ging Plough, and (13) the Steam Ploughs. We will now 

 shortly go through these that one may judge for himself 

 whether any of these or any portions of these can be intro- 

 duced with success in this country. As the wheel-plough 

 is practically a swing-plough with wheels put on, the same 

 figure (Fig. 16) will answer for illustrating both the ploughs. 



FIG. 16. WHEEL-PLOUGH. 



170. The Swing-plough consists of the following parts : (i) 

 The Body (A), or frame to which other parts are fixed. (2) 

 The Sole, Bottom, Slav, or Plough-ground (S) is the part to 

 which the share or cutting part of the plough is attached, (3) 

 the Share or Sock (C) which is often made of wrought iron, when 

 it can be relayed when damaged. For shallow stony soils 

 shares are made more pointed and slightly bent downwards. 

 It is usually fixed at an angle of 7 from the ground to pre- 

 vent its yielding. For soft or clay soils the shares are made 

 wider. Shares are sold separately for lod. or a shilling each. 

 Cast-iron shares are more common and they are harder. (4) 

 The Heel (H) is the posterior part of the sole which the plough- 

 man uses as his fulcrum in turning on raising the plough. (5) 

 The Beam (B.B.) is the front portion of the plough between 

 the Body and the Bridle. (6) The Head (T) is the front end of 

 the Beam to which the Bridle (L) is fixed. (7) Bridle or Hake 

 (L) by which the depth of the furrow is regulated in the 

 swing-plough. (8) The Coulter (R) or knife which is fixed to 

 the beam and which gives the perpendicular cut to a furrow- 



