Chap. XXI. Of the Wheat-Drill. 345 



fiance one from the other : Thefe Pieces, being cut 

 fharp at Bottom-, made the Chanels tolerably well in 

 fine Ground. But I foon contrived a Plough with 

 Four Iron Shares, to make Chanels in any Ground: 

 This drew a Hopper after it, having Four Seed-boxes 

 at its Bottom, carried on a Spindle by Two low 

 Wheels, which had Liberty to rife and fink by the 

 Clods that they pafs'd over: The Seed-boxes delivered 

 their Seed immediately into the open Chanels. 



This Plough and Hopper were drawn by an Horfe, 

 and the Seed, lying open in the Chanels, was covered 

 fometimes by a very light Harrow, and fometimes by 

 an Hurdle ftuck with Bufhes underneath it. 



I foon improv'd this Plough to perform better, 

 and to make Six Chanels at once, and fometimes a 

 great many more. 



This Plough and Hopper, with their Improve-* 

 rnents and Alterations^ arefhewn in Plates 4. and 5. 



CHAR XXI, 



Of the Wheat-DrilL 



piG. 1. in Plate 4. is the Drill-plough, which makes 

 the Chanels for a treble Row of Wheat, at 

 Seven-inch Partitions, and covers the Seed by the 

 Harrow which moves on its Beams. A, is the Plank, 

 Three Feet and an half long, Eight Inches and an. 

 half broad, one Inch and a quarter thick; its upper 

 and under Surfaces are true Planes. B, B, the Two 

 Beams, each Two Feet Four Inches long, Two Inches 

 Three quarters broad, and Two Inches and a quarter 

 deep, {landing under the Plank at right Angles with 

 it, and held up to it by the Four Screws and Nuts 

 f?>. & a >. 0* the one being at the fame Diftance from 



the 



