HONORABLE 



ROBERT BOYLE Efc 



The mofi worthy pattern of true Honor i 



AND 



Learned?romoterof true Science. 



IT is a faying in the Civil Law, That a 

 \hingwhichis any Mans own^ cannot be 

 'made wore his by any new A3 or Deed: 

 Thcccnfequenceof which, is> that theDe* 

 dication of this Piece to you will be meer- 

 ly nugatory , fince by all right it is already 

 yours. For it is not long fince I imagirei 

 no more being either Aathor, or Compiler 

 of any matter on this fubjtcl, then of doing 

 any other thing which T have neither fancy 

 nor fitnefs to. , But you were pleafed to 

 judge me able, and (which obliged me to 

 this task) to propofe it unto me as your de- 

 * A 2 fi xe 



