60 



BOARD OF AGRICULTURE. 



^^m^^^^ 



It has two mould-boards in one, and is admirably adapted to 

 hill-side plougliing, saving also the " dead furrow," when used 

 on level. 



A hook, fastened to a centre piece between the handles so 

 formed as to change to either side of tlie beam, enters the back 

 of the mould-board and keeps it steady, whichever side it may 

 be wanted. The mould-board is easily turned while the team 

 is turning at the ends of the furrow. 



Another modification of the plough of modern times is that 

 of the Michigan, or double mould-board. 



" Tli3 forward mould-board is connected with the beam, and its 

 depth of furrow is adjusted as follows : A substantial iron flange 

 is fastened to the under side of llie plough-beam by two bolts passing 

 up through the flange and the beam, and made tight on top by nuts 

 and screws ; the flange has two rows of slots in it to receive the bjlts 

 from the landside of the forward plough, and the bolts make the 

 plough entirely and substantially fast to the flange, when their nuts are 

 tightened ; and by means of the slots in the flange, the forward 



