ones doe. But thefetwolnftruments 

 of Fixation being but general, I (hall 

 propofe four or five more particular 

 ones. 



CHAP. II. 



AN D firjl, jo fqme cafes it may 

 conduce to Fixation,that, either 

 by an additament 9 or by the operatic 

 on of the fire, the parts of a body be 

 jbi ought to touch each other in large 

 portions of their furfaces. For, that 

 from fuch a contadi there will follow 

 fuch a mutual cohefion, as will at 

 Jeaft indifpofe the touching corpu- 

 fcles to fuffer a total divulfion, may 

 appear probable from what we late- 

 ly noted of the cohefion of pieces of 

 marble and glafs, and from fome o* 

 £her Phenomena belonging to the Hi- 

 ftoty of Firmnefs^ from whjch v/e 

 may properly enough borrow fpme 

 inftances-, at leaft for illuftration, iij 

 the Doftrine of Fixtnefs^ in regar4 

 ehat ufually, though not ^lwayf, 

 * ' i: " ' ■ . ' the 



