Chap. 11. OF DRILL-PLOUGHS. 431 



" it will not be Co apt to fhrink and reach as hemp) " about thefe 

 '* two wheels, that when the inftrument moves on the hindermofl 

 " wheels, by means of the line, the fmall wheel, at the neck of 

 " the hopper, may alfo move ; which lefTer wheel in the neck of 

 " the hopper, may have fliort pieces of thick leather fixed in the 

 " circumference thereof, like unto the teeth of a jack-wheei, that 

 ** upon its motion it may deduce the corn out of the hoppef, in 

 ** what proportion you pleale ; for in cafe it comes too fall:, then 

 " you may by a wedge at the tenon of the piece whereon the hopper 

 " reifs, as at t, or at the end of the axis of the lefier wheel, force 

 ** the wheel and hopper together; as in cafe it feeds too flow, then 

 " may you remove them by the fame wedges to a farther diflance : 

 " alfo in cafe your line be too flack or too hard, you may prevent 

 ** either extream by a wedge in the place where the axis of the 

 " wheel moves, or by a third wheel, about the middle of the line, 

 ** made to move farther or nearer, as you fee caufe. 



" Alfo by means of the iron rod vv, fixed to the foremoft axis 

 " that is made to lock, may you guide your engine at pleafure ; 

 " which rod is made crooked at the end of the hopper, left that 

 " iLould injure its motion. 



" And at the turning, you may lift up your engine by the handles 

 ** at X : for whilfl: you lift it up, the corn feeds not until you fet 

 " the fame down again. 



" One horfe and one man may work with this infl:rument, and 

 " fow land as fafl: or fafl;er than fix horfes can plow ; fo that you 

 •' may with eafe compute the expence, in cafe your inftrument be 

 " fingle : but you may in the fame frame have two fhares at twelve 

 " inches difl:ance, more or lefs, as you will have the rows of corn 

 •' difl:ant the one from the other j and two pipes out of the fame 

 ** hopper, and two fmall wheels on the fame axis, with other wheels 

 " anfwerable, every whit as eafy to be performed as one ; and then 

 " you may double your proportion of land in a day. 



" This inflirument will always keep the fame proportion you firft 

 " fet it too, which you mufl; thus contrive. Firfl:, know the length 

 ** of the furrow you fow : then cafl: up how many of thefe furrows 

 " at fuch a difl:ance your infl:rument is made for (whether a foot, 

 " more or lefs,) will amount to an acre : then conclude how much 

 " to fow on an acre ; as fuppofs a bufliel : then divide that bufliel 

 ** into fo many parts as you have furrows or dillances in that acre : 

 *' then take one or two of thofe parts, and put it into your hopper, 



" and 



