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ture B downwp.rils, which aperture is enlarged or contrafted by 

 the Aider as before. To fovv turnips, the fame plate is placed 

 between the bridge and the Aider, with its fmalleft aperture A 

 downwards, and the hollow part about the fame aperture inwards. 



Fin. 8, is a view of the regulator, by which the apertures in 

 the fcveral fpouts are all fet exaftly alike, with the utmoft eafe, 

 to make them feed equally. The extreme height of the largeft 

 aperture is equal to the breadth A B, and the breadth at C is 

 equal to the height of the fmalleft aperture ufed, viz. that for 

 turnips. The fide A C, is divided into 60 equal parts, and on 

 it moves the Aider or horfe D ; which being placed at any par- 

 ticular degree, according to the quantity of feed required to be 

 fown on an acre, is fixed upon it, by a fcrew on the fide of the 

 Aider or horfe. When this is done, the end of the regulator ig 

 put through the aperture in the bridge or plate (whichever is in- 

 tended to be ufed) and the Aider againlt the bridge in the fpouE 

 raifed by it, till it Hops agriinft the horfe on the regulator; then 

 the Aider isfaftened againft the bridge firmly by the two fcrews; 

 care being taken a: the fame time, that it fiands nearly fquare. 



By this means the fpouts (being all fixed in the fame manner) 

 will feed equally. 



It is cafy to conceive that the fize of the apertures, and con- 

 fequently the quantity of feed to be fovyn on an acre, m?.y be 

 regulated with a far greater accuracy than is required ki com- 

 mon praftice. 



The fpouts may be regulated v/ith the utmoft nicety, in five 

 minutes, to fow each particular feed, for the whole feafon. But 

 a little praftice will enable any perfcn, who pofieflcs but a very 

 moderate capacity, to make the fpouis feed equally, even with- 

 out uling the regulator.* 



• Proper direftions are givei) with each machine, for ufing it, as alfo i«r filing 

 the Aiders to fow any particular quantity of corn or feed on an acre : fo a; in 



enable any pcrfua to fct the fpouts. 



Of 



