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and a palrof ftilts behind for a rnan to ftrlke« 

 the depth of the drills. 



I have made trial of numbers of horfe-hoes 

 and hand-hoes of different kinds to drill crops: 

 but they never thoroughly anfwered my piir- 

 pofe. My land v/as lefc foul ; my crops were 

 fcanty ; and I was vexed and afhamed of hav- 

 ing fquandered fo much money on the driU- 

 fcheme, until I luckily hit upon the method of 

 ufing the plough, as hercdireded, and of put» 

 ting the manure into the drills, &c. 



The fcarifier mud be made fo as to cut the 

 roots of couch-grafs at bottom as deep as the 

 plough goes, that they may be drawn by the 

 harrows out at full length without breaking. — 

 Such fcarifiers are very proper for thiftles, 

 bracken, or wild oats, or almoft any thing but 

 twitch. They mud be keptfharp, or they will 

 rife out of the ground on the leaft obftrudion. 

 Weeds which ftrike with a tap-root are not- 

 cafily cut by a blunt fcarifier, which frequently 

 trails them down and leaves them growing. I 

 have an invention for fuch purpofe fuperior to 

 the plough or fcarifier. It is made of a trian- 

 gular form, with a beam, and two fmall wheels 



under 



