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-''Mr. Cooke had one of them fitted up at Londort 

 as a fwlng- plough, with a fhare of wrought iron, 3- 

 coulter, and the neceflary wood-work. This he 

 tried in a loamy foil, and it anfwered perfectly well, 

 but this did not fatisfy me ; 1 therefore requefted 

 him to come and fpend a few days with me in the 

 country, and take along with us two of his iron 

 cafts, in order to have them fitted up, and make 

 trial of them in fome of the fi:rongeft foil in Eng- 

 land, and in many places mixed with flints and 

 pebbles. This he cheerfully complied with ; — we 

 accordingly put our plan in execution, and for a 

 firft eflay, I think I may add, that we met with 

 mod extraordinary fuccefs. I was fo much pleafed 

 with my two fwing- ploughs of this new .form and 

 conftrudion, that I have ploughed with them ever 

 fince, and I will venture to fay it is the befl plough- 

 ing ever performed on fo ftrong a foil. 



I believe. Sir, your Society will admit that this 

 plough has fome peculiar excellencies, when I tell 

 you that it requires but three horfes inftead of four, 

 which I have always ufed on this land, which is not 

 only ftrong but hilly j and I am confident two horfes 

 would be quite fufficient in this plough, were the 

 land level and loamy : and befides, that it turns a 

 clean and fquare furrow of feven or eight inches 

 deep ; that it lays it over completely, and that it 

 breaks and fhivers it in the adlion of turning. 



