Chap. S. of Nature in Vegetation. 1^3 



lion, (under which may be well accounted 

 that feall Height to which the talleft of 

 Animals advance) and fo confequently the 

 Blood is employ'd about no other fervice. 

 But a Tree requires an unlimitted Procera- 

 tion 3 and 'tis reafonable to fuppofe that Na- 

 ture employs all her Force to that End. 



And as for the Swelling or Extenfion of^^^^«y?^^« 

 Trees, it is obvious to proceed from the EfFu- 

 lion of the Sap from the Heart of the Tree 

 through the Pores, which infenfibly dilates 

 and fwells the whole, by the accumulation 

 of Circle upon Circle, which are the annual 

 Gradations, plain enough to be feen by any 

 one that cuts the Branch, Bough, or Trunk 

 oi a Tree a-crofs. 



And here it is to be obferv'd, that the Sun a parties. 

 has a very great Influence, fince the Annual ^^^^ff/iy 

 Circles which are on that fide next th^ Sun ths'kL 

 are much larger than thofe dn the North 5 

 and 'tis reported, that a foreign Prince having 

 once loft himfelf a Hunting in a great Foreft^ 

 was fet right by that Obfervation. 



I hope I have now fufficiently prov'd that CmcUfwiu 

 there is no Defcenfion or Circulation in Sap, 

 notwithftanding what has been faid by Others 

 on that Subjeft. 



Yet how plain foever it may appear ag^aitlft ^« obx- 

 the Defcenfion of the Sap, I have feen an^^'!;^,f" 

 Inftance in Buckinghamfiire, w^hich helps to 

 confirm that Opinion 5 which I fliail there- 

 fore Anfwer, and then have done : It is of 

 M 2 a Jep-^ 



