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ftveiith ; and in every following length let the ontfide wheel al- 

 ways run one furrow within the track made by the fame wheel; 

 becaufe the breadth fown is about nine inches lefs than the dif- 

 tance between the wheels. 



Let the machine be kept in a perpendicular fituation. If the 

 farmer wiihes to fow more or lefs feed on any one part of the 

 field than the other, it is only raifing the handles a little higher, 

 or Unking them a little lower than ufual, and it will occafion a 

 fufficient alteration; and fhould the laft turn be lefs in breadth 

 than the machine, thofe fpouts which are not wanted, may be 

 taken up from the bar, and prevented from feeding, by turning 

 the knob above them. 



Alfo, when the land required to be fown has what is called a 

 Tcnt, that is, when the fides of the field run in an oblique line 

 Da the fnrrows, which by this means are unequal m length ; 

 the fpouts muft be taken up or let down' in fucceflion by turning 

 the knobs; as that part of the machine, where they are placed, 

 arrives at the ends of the furrows. This is done while the ma- 

 chine is going forward. 



If- the land ba tolerably level, the machine may be fixed by 

 the fcrew in the front, and may then be ufed by any commoa 

 harrow-boy. 



Method of regulating the Machine. 



IN each fpout ii fixed a bridge, fee Fig. 7, with an aperture in 

 It, B, for the grain or feed to pafs through. This aperture is 

 enlarged or contrafted by a fl:der. A, which pafles over it ; and 

 when properly fixed for the quantity of feed defigned to be fown 

 on an acre, is faftened by means of two ftrong fcrews, firmly 

 againft the bridge. This is made ufe of in fowing all kinds of 

 leed, where ic is required to fow from one bulhel upwards on an 

 acre. To fow one, two, three gallons, or any of the intermediate 

 quantities, as of clover, cole-feed, &c. the brafs plate, fig. 6, is 

 placed between the bridge and the Aider, with the large* aper- 

 ture 



