[ 21 j 



admirably from the old root. I confefs that 

 fome plantations on the wolds have failed, 

 but the failure has generally been occafioned 

 by an infufficient fence, whereby the plants 

 have been ruined by fheep, their greateft 

 enemy ; or they have not been planted thick 

 enough at firft : This is a common, but a 

 capital error. I find by experience, that 

 nothing is fo effential to young plants as 

 warmth, it is more material than depth or 

 goodnefs of foil. Trees grow quicker and 

 larger in good, than in bad land, but fome 

 kinds will grow in any foil : without llielter, 

 no trees can exift. Remove fome rich 

 earth from a valley to the top of a mountain, 

 plant a fmgle tree therein, and w^ater it when 

 neceffary, no art will make it profper. 

 When trees are fet very clofe together, fo as 

 at firft almoft to touch each other, they not 

 only afford warmth by breaking the force 

 of winds, but fupply conftant moifture to 

 the roots ; the rain and dew is not fo foon 

 exhaled, and the ftagnation of air occafioned 

 by the fhade, furniflies that putrid heat and 

 fermentation fo neceffary for the purpofes 

 of vegetation. * The mellowing and en- 

 riching the ground by a crop of turnips, 



* This is an admirable obfervation, and cannot be 

 too much attended to. 



C 3 and 



