[ =41 ] 



As to manures, thofe which will exceedingly 

 enrich one fort of land will be of no fervice to 

 another; and this happens frequently to be a fact 

 where there is a great iimilitude to all appearance 

 in the foil. Therefore, different experiments are 

 neceiTary, and that on fmall pieces for trial. 



I am, Gentlemen, your's, &c. 



April 28, 1783. J. L. 



Article XLII. 



Obfervations on Rhubarb^ and its culture in 

 England. 



[By the late Dr. John Fothergill.] 

 Gentlemen, 



VERY foon after I received your Secretary's 

 letter, I was feized with a diforder which 

 rendered me incapable of attending to any thing 

 but my own fituation. I am now fomewhat better, 

 and hope, in the way to recover my ufual health. 



The Rhubarb which has been chiefly cultivated 

 in this country, as the true officinal Rhubarb, is 

 undoubtedly the Rheum Palmatum. From the 

 appearance of the root when properly cured, and 



from 



