6 a>f tty ^et&antcai flDtfgme 



up bigger, but lefs heavy and com- 

 paft 5 corpufclcs'j than thofe calces 

 confift of; 



The third Qualification that con- 

 duces to the Fixity of a body, be- 

 longs to its Integral parts, not barely 

 as they are feveral parts of it, but as 

 they are aggregated or contexed in- 

 to one body. For, the Qualification, 

 I mean, is the ineptitude of the com- 

 ponent corpufcles for avolation, by 

 reafon of their branchednefs, irre- 

 gular figures, crookednefs, or other 

 inconvenient (hape, which intangles 

 the particles among one another, and 

 makes them difficult to be extricated $ 

 by which means, if one of them do 

 afcedd, others, wherewith *tis com- 

 plicated, muft afcend with it J and, 

 whatever be the account on whiph 

 divers particles ftick firmly together^ 

 the aggregate will be too heavy or 

 unwieldy to be raifed* Which I 

 therefore take notice of 5 becaufe 

 that, though ufually 'tis on therough- 

 nefs and irregularity of corpufcles, 

 that their cohefion depends 5 yet it 



tome- 



