[ io8 ] 



thefc imperfect hints are fubmitted to the public, 

 in hopes of inducing others, who have better op- 

 portunities of making experiments than myfelf, to 

 exert themfelves in an effectual manner to afcertain 

 thofe points that ftill are doubtful. I fhall myfelf 

 endeavour, as far as circumftances permit, ftill to 

 go forward in this tract, and am not without hopes, 

 that in time I may be enabled to fpeak with fome 

 degree of firmnefs, concerning the modes of cul- 

 ture that are well adapted to infure great and profit- 

 able crops of this mod valuable plant. At pre fen t, 

 I rather chufe to decline entering on that branch of 

 the fubject. 



N. B. As there is much diverfity in weights and meafures in dif- 

 ferent parts of this country, readers are often greatly embar raffed for 

 want of blowing the exacl amount of thofe that are mentioned in expe- 

 rimental ejpiys. To avoid that inconveniency on the prefent occafwn, 

 the reader is defired to take notice, that, unlefs where it is fpecially 

 mentioned to be other-wife, throughout the whole of the preceding ejfay, 

 an acre means an exatljlatute Englifh acre, of 4840 fqu are yards. A 

 pound means an avoirdupoife pound of 16 Dunces, and abufhel 56 of 

 thefe pounds » or half a hundred weight. Every reader, by the help of 

 this information, may eafily bring any weights or meafures mentioned (a 

 the famefandard that is ufed in his neighbourhood, 



Thcgreatefl part of the ejfay was written in the year 1778 ; afe-w 

 abfervations having been fine e added, which are difinguijhedjrcm the 

 original ejfay by being included within crotchets [thus.] 



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