144 Mr. Williams's account of the 



It next became the object of the miner to discover the parts of 

 the copper and tin veins, which had been severed and carried away 

 by the flucan. This after much labour and expence was effected. 

 On pursuing the downward direction of the flucan vein, after it 

 had quitted the tin vein at B, it was found that the copper vein 

 had been carried down about 18 fathoms from A to C, and the tin 

 vein as much from B to D. 



The working of the tin vein being the object of the miner, he 

 found it proceeding in its underlie from D in the same direction as 

 it had assumed between the surface and its place of intersection with 

 the vein of flucan at B ; but after sinking upon it about 9 fathoms, 

 it was found (to use his phrase) cut out by the copper vein at E, 

 whence a new and unlooked for delay and expense were incurred. 

 It was at length discovered that the effect of this intersection was 

 immediately opposed to that occasioned by the flucan vein, for the 

 tin vein was as it were, heaved up by the copper vein 8 fathoms 

 to F, whence it resumed its customary underlie and direction, and 

 was followed for about 42 fathoms in depth to G, where it was 

 intersected by the south slide d, by which it was heaved up about 

 nine feet ; it afterwards continued its course downwards as before, 

 and was worked about 38 fathoms below to H. The south slide 

 underlies towards the north about six feet in a fathom. 



The accompanying longitudinal section of Huel Peever is along 

 the run of the tin vein, and supposes its south side or wall taken 

 away in order to exhibit the workings of the mine ; and for the 

 same reason also supposes a perfect continuation of the tin vein 

 from the eastern side of the western cross vein z to the western 

 side of the eastern cross vein x t although the fact was, as has 

 been already noticed, that the tin vein was separated by the 

 slide at 26 fathoms on its underlie from the surface, and carried 



