A TOUR ROUND NORTH WALES. afit 



us of late years -, and the firft finding of it 

 out was owing entirely to accident. From 

 the copper mines at Arklow, in the county 

 of Wicklow in Ireland, a great quantity of 

 water iffues, which is ftrongly faturated 

 with the vitriol of copper. One of the 

 workmen having accidently left an iron 

 fhovel in this water, he found it fome 

 weeks after, but fo incrufted that it was 

 thought to be changed into copper. The 

 proprietors of the mines in purfuance of 

 this hint, made proper pits and receptacles 

 for the water, and have obtained, by means 

 of iron bars put into them, fuch quantities 

 of copper, that thefe ftreams are now be- 

 come of as much confequence as the mines 

 themfelves. 



The fides of the dreadful hollow from 

 whence the ore is taken, are nearly all per- 

 pendicular, but in one place \\eas fufficiently 

 floping to permit my walking to the bot- 

 tom, A depth of about fifty yards. Along 



the 



