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Article LIX, 



jin Abridgement of fever al Letters publifhed by 

 the Agriculture Society at Manchefler^ in 

 confequence of a 'Premium offered for difcover- 

 ingy by adiiial Experiment y the caufe of the 

 Curled Difeafe in Potatoes. 



LETTER I. 



THE writer of this letter is of opinion, that 

 this dileafe is caufed by an infed produced 

 by froft or bad keeping before fetting; and that 

 the neweft kinds, fuch as have been raifed within 

 thefe nine or ten years, are moil apt to curl, Ipe- 

 caufe they will not iland to be kept in winter and 

 fpring before fetting, as the old kinds will ; for in 

 one experiment he took an equal quaritity of fine 

 potatoes (what are called Manley's) out of the 

 heap; one part he kept moid and cool, which 

 made them full of virtue, and firm s fo that when 

 they came to be fet, there was moifture to difTolve 

 the fet, and feed the branch, and not one curled 

 amongft them. 



The other part he kept dry and free from wet, 

 till wrinkled and foft, and the moifture almoft ex- 

 pended, fo that when kx^ inftead of putrifying and 



decaying. 



