HARROWING. 



475 



thin or sharpened edges, and string them upon iron rods, upon 

 which they will revolve freely, and arrange them in squares like 

 the panes of a window or sash, and with enough of them to 

 form the desired size of a harrow, we shall have formed the 

 instrument to which I refer. As they revolve vertically, and 

 are drawn over the surface, their tendency is to cut all the lumps 

 into fine pieces, and to leave the surface well reduced and pul 

 verized. 



At Lord Hatherton s well-managed farm, at Teddesley Park, 

 Staffordshire, I saw a revolving harrow, somewhat resembling a 

 hay-spreading machine, the long and curved teeth of which pen 

 etrated the ground deeply, thoroughly stirred it, and brought the 

 weeds and rubbish to the surface. It was moved upon low 

 wheels, and performed its work most effectually. 



I shall borrow, for the benefit of my readers, an account of 

 BiddelPs extirpating harrow from Mr. Ransome s valuable book, 

 before quoted. I have not seen the instrument at work, but 

 its efficiency will be understood from the account. 



BIDDELL S EXTIRPATING HARROW. This is a new implement, 

 invented by Arthur Biddell. of Playford. and similar to the scar 



ifier which bears his name. It is intended for breaking up land 

 when it is too hard for the heaviest harrows, and for bringing 

 winter fallows into a state of fine tillage. In working summer- 



