34 THE PRACTICE OF THE 



far beneficial, as they approach nearer to the 

 horfe-hoeing. 



Another inftrument made ufe of in the New 

 Husbandry is, a double mould-board or earth- 

 board plough, with which furrows between 

 the ridges are deepened at laft, and which 

 clears the earth out of thefe furrows, throws 

 it all up to the ridges, and leaves a clear, deep 

 trench or furrow between the ridges ; this it 

 does at one draught or furrow, that would 

 require two furrows of the hoe-plough. The 

 earth -boards of this plough mould be made 

 pretty high, that they may throw all the 

 earth u|> to the ridges on each fide : and it 

 would be convenient to make the two mould- 

 boards rrjoveable, to be fet wider or narrower 

 one from the other, becaufe the ridges are 

 not always equally diftant ; and, by means of 

 the mould-boards being moveable, the earth 

 may be thrown up higher or lower upon the 

 ridges. This plough may have two fmall 

 fins, one on each fide of the fhare, and is 

 ufeful in the Common Hufbandry, to open fur- 

 rows in level ground, into which beans or po- 

 tatoes are to be dropped, and afterwards co- 

 vered with a harrow or hand hoe. Thefe two 

 ploughs being ufeful in the Common Hufban- 

 dry, and not peculiar to the New, are not 

 .properly chargeable to the New alone. The 

 .only inftrument of confequence, peculiar to 

 the New Hufbandry, is the drill-plough, 

 whereof Mr. Tull's is the befl yet commonly 



ufedj 



