Xli PREFACE. 



The writer fubmits thefe pages to the 

 candour of the learned, under a confciouf- 

 nefs of his own inabilities for the talk ; but 

 if it affords ufeful improvements in the art, 

 he hopes it may be pleaded in excufe of his 

 prefumption. 



JOHN KEYS. 



Bee-Hall, near Pembroke, 

 1796. 



EXPLA- 



