[ 27 } 



The Chefhire or Lancafhire kinds anfwcr bcft in 

 the neighbourhood of Bath. Warminfter or Far- 

 ringdon potatoes are alfo a good change for tliis 

 foiJ. Thofe from Monmouth and the adjacent 

 parts are not fo good. 



They fhould be planted in frcfh ground every 

 year. If either frelh or the fame feed be planted 

 upon the fame foil for two or three years fuccef- 

 fively, the crops will generally fail, the haulm coine 

 up curled and blighted, and the roots will be 

 worm-eaten and cankered. The caufe of this may 

 perhaps be aillgned. Every fpecies of plant is pro- 

 vided by nature with pores of fuch conftrudtion and 

 magnitude, as are capable of receiving thofe parti- 

 cles of nourifhment only whofe dimenfions are cor- 

 refpondent to the faid pores : Hence every fpecies 

 muft receive or imbibe the abovefaid particles only, 

 and reject all others; and, confequently, if the fame 

 fpecies be planted, or fown, upon the fame foil, for 

 two or three years in fucceflion, the greater part of 

 fuch particles will be exhaufted, and the plants can- 

 not flourifh for want of proper nouriihment. 



Potatoes fiiould not be planted deeper than four 

 inches or four inches and a half, and the feed or 

 fcts fhould lie one inch or one inch and a half 



above 



