Ghap.^. of. Nature m Vegetation, i^p 



There be Thofe who carry the Matter yet of the 

 farther, and affirm. That there are three '^^/.^^f- 

 kinds of Sap that afcend from the Root, (dif- ofsap. 

 fering from each other in Rarefadion and 

 Purity ) being the feveral forts of which is 

 composed the Branches, Leaves, Flowers, 

 and confquent to them the Fruit, that they 

 pafs in different Channels : But this, I con- 

 fefs, is not obvious to me. 



I rather fuppofe 'tis all of one kind, and Suppoid ta 

 that it affumes its proper Office by a hidden ^^ ^'^^ ^''^' 

 Inftind in Nature, juft as it enters the 

 Boughs or Branches whereon the Fruit is to 

 be, they being already formed for that Pur- 

 pofe by fome cafual Sprouts of the laft Year 5 

 or probably, that it is rarefied by the Pajlage 

 through the Stem : And what confirms me in 

 the Opinion of the latter, is, that Standard 

 Trees generally bear better and fooner than 

 Dwarfs 5 and this is very plain in Cherries, 

 to mention no more. 



For by the near fituation of the Stem to Vncomo^- 

 the Root, and the Sap being grofs and uncon- ^ffstl!^' 

 coded, it runs more into Wood and Branches 5 

 and by its violent Effufion, renders fome of 

 thofe Trees, whilft young, fo rampant and 

 vigorous, that *tis a hard matter to deal with 

 and keep them in any tolerable Order : 

 Whilft the other, by its long PaiTage through 

 the Stem, is, hy the Virtual Influence and 

 Co-operation of the Sun and Air, robb'd 

 of its Crudities, and thereby the better dif- 

 pos'd to frudiferous Produdions. And I 



cannt 



