230 A TOUR ROUND NORTH WALES. 



Knockers, which by the Welfh are be- 

 lieved to be a fpecies of aerial beings, 

 that are heard underground, in or near 

 mines, who by their noifes direct the 

 miners where to find a rich vein. The 

 following extraordinary account of 

 them, is from a letter of Mr. Lewis 

 Morris, to his brother, Mr. William 

 Morris, Comptroller of the cufloms at 

 Holyhead, dated October the i^th. 1754. 

 I will make no comment upon it, and 

 only preface it by obferving, that Mr. 

 Morris, was a very learned and fenfible 

 man, and a perfon whofe judgment is 

 efteemed of great weight, by every one 

 who has been either acquainted with 

 him or his writings. " People who 

 know very little of arts or fciences, or 

 the powers of nature, (which in other 

 words, are the powers of the author of 

 nature) will laugh at us Cardiganfhire 

 rmners, who maintain the exiflence of 



Knockers 



