LETTER, &c. 



SIR, 



J Am much obliged by your attention, in 

 having directed your bookfeller to fend 

 me an early copy of your ingenious work. 

 It has been my companion during a long 

 journey, and has furnifhed me with en- 

 tertainment, fimilar to that which I have 

 occafionally had the honour to experience, 

 from your animated converfation on the 

 fubjecT;. In the general principles and 

 theory of the art, which you have confi- 

 dered with fo much attention, I flatter my- 

 felf that we agree ; and that our difference 

 of opinion relates only to the propriety, or, 

 perhaps, pofftbility, of reducing them to 

 practice. 



b 2 I am 



