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withftanding the formation of their parts is 

 compofed of pores tranfverfe, is evident 

 from the praftice and efFeds of grafting ; 

 wherein the combined parts of ftock and 

 cyon, muft be faid to have as irregular an 

 union, if not a more unnatural compofition 

 and heterogeneous corpufcles, than fuch 

 roots v^ith the body of the tree. If the ftrefs 

 lay upon the capacity of the fluids not hav- 

 ing fuch a motion in their little intorted ca- 

 vities therein ; an analogy inight be brought 

 from the conftant circulation of the blood in 

 the fmall winding Veins of all animals ; 

 wherein it is allowed by Malpigbius and 

 others duly to circulate, altho' not fo 

 fwiftly. 



Upon the whole, having further fliewa 

 that thefe new named roots are not imper- 

 vious to fluids^ that is, neceflarily die not 

 ——That they continue capable both of re- 

 ceiving and remitting the fame again to the 

 parts mentioned after any ufe thereof in 

 their former ceafe — And confequently are 

 thereby well enabled to perform (if I may 

 fo call them) all manner of animal fundli-. 

 ons— It is indubitable reafon to conclude, 

 that the great damages difcoverable many 



4 times 



