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fuch malignant blafts and their genuine ofF- 

 fpring; and where the foil was very rich^ 

 Yet I do not apprehend the bare obftrudion 

 of the progreffive part of the head of the 

 tree alone, on fuch occafions, is to be con- 

 iidered, or the lateral germinations occafioned 

 for want of the accuftomed difcharge of the 

 already afcended fap, at it's natural rills. 

 But that, as I take it, there is a real fympa- 

 thetick correfpondence between the head of 

 fuch plant and the roots, in like manner as 

 between the roots and the head as to their 

 future cuftomary efforts. In which latter 

 cafe a Green-houfe gardiner will tell, by the 

 head of a plant fet in a tub, almoft the in- 

 ftant that the roots thereof are got to the 

 bottom and fides of fuch domicill. The 

 like indeed is feen in many vegetables, in 

 the decline of their heads in the open earth, 

 from a fufferance of any kind in their roots. 

 And were there not vice njerfd altho' not 

 a like, yet fome peculiar difaffedion to the 

 former vigorous faculties of the roots of a 

 plant, after the pinching oiF it's upper ex- 

 tremities 3 a more fruit-bearing, and confe- 

 quently more weak and moderate flow of 

 Sap for the future, would not be the efFed: 

 thereof as it always is. The reafon is plain 



—Why 



