ENGLISH AGRICULTURE. 



117 



the ridges in the line of their length with a curved harrow 

 made for the purpose to catch both centre and sides of the 

 ridge. Next use the double mould-board-plough so as to 

 form up the ridges again, and we shall have a beautiful seed- 

 bed for mangold-wurzel or for swedes, which we may at once 

 proceed to drill. In this way we can get clay lands brought 

 into the requisite state of fineness in the month of April or 

 May for the reception of mangel, rape, or turnip-seed. 



