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Article XXIL 

 Some Obfervaiio?2s on Thirties as injurious in 

 Agriculture^ more particularly the Seratula 

 Arvenfis ^'Linnaeus, 



[By W. Curtis, Author of the Flora L6ndimnfii.\ 



Gentlemen,- 



WHILE fome of your correfpondents are 

 laudably engaged in enriching agriculture^ 

 by difcovering and promoting the cultivation of 

 new plants, pernnit one whonn you have been pleafed, 

 to ele6t an honorary nnember of your Society, to 

 lay before you a few obfervations on fome of the 

 plants which are more particularly noxious to the 

 farmer. Should they be confidered as contributing 

 to advance even in the fmallefl deo;ree the defio:n of 

 your inftitution, he may be again excited to trouble 

 you on other fubjedls, as information may arifc 

 from a cultivation of moft of the Bridih plants pn 

 a fmall fcale. 



There are no plants over which the oeconomical 

 farmer ought to keep a more watchful eye than the 

 thiflle tribe. He is fenfible that they are not only 

 ufclefs, as refilling the bite of moft animals, the 

 hardy afs excepted, but that they occupy much 

 ground i and being furnifhed with downy feeds, are 



capable 



