T O 

 Sir THOMAS G ASCOIGNE, Bart, 



TH E fruits of my labours, . 

 whatever they may be, be- 

 long to you : your goodnefs and 

 generofity have already greatly 

 over-paid them ; yet I never durft 

 have petitioned for your patronage 

 and protection for thefe Sheets, 

 which I prefume to offer to the 

 public, but from a perfect con- 

 viction of their utility : being 

 fufficiently acquainted with your 

 knowledge in my profeflion, and 

 more fo with the rigour with 

 which you would treat the errors of 

 a 2 your 



