ABERCONWV. 141 



having been worked at a very remote period. The 

 ore, which is found between the lime stone strata, 

 is a green carbonate of copper, and it is generally 

 very rich, but exceedingly variable in quantity. 

 A new mine on the Gloddaith property has lately 

 been opened, wliich produces a great quantity of 

 ore, and that of a very rich kind ; being sold for 

 thirty-seven pounds a ton. All the ore is taken 

 to South Wales to be smelted. There is a singu- 

 larity in the formation of the rock of Llandudno 

 to be observed ; for the dip, instead of being simi- 

 lar to that of Penman rhos, is exactly the reverse ; 

 which I have not seen noticed by any geologist. 



Sea level 



The extremity of the promontory Pen Gogarth, 

 terminates in abrupt and rugged precipices of five 

 hundred feet in perpendicular height; the hollows 

 of which furnish breeding places for an infinite 

 number of sea fowl. On the night of the first of 

 January, 1824, it was the scene of a most lament- 

 able shipwreck ; the brig Hornby, bound from 

 Liverpool with a valuable cargo for Brazil, struck 



