Mr. William Phillips on the Veins of Cornwall, 157 



their veins were discovered to be intersected near the Great Cross 

 vein apparently by two or three smaller cross veins, between 

 which parts of the east and west veins have been seen ; as however 

 the Great Cross vein is known in other parts of it to divide into 

 branches (a circumstance very common in veins of this description) 

 it is believed that these small veins are only branches of the large 

 one. The whole of these mines are situated in granite. 



Ground Plan of some of the Veins in the Copper Mine called 



Huel Alfred. 



PI. 6. Fig. 6. 



This mine is situated on a schistose hill, in the parish of Phillack, 

 about three miles south-east of Hayle Copper-house. It had been 

 worked previously to the year 1800, but was abandoned principally 

 on account of the surrounding country having fallen in, and filled 

 up or destroyed the only shaft that had been sunk. This circum- 

 stance was, most probably, the cause to which the successful 

 working of the mine may be attributed. For, being compelled to 

 sink another shaft, it so happened that the chosen spot was 

 immediately above a vast body of ore which has never failed since 

 its discovery. But as copper ore had been left at the bottom of 

 the shaft that had fallen in, a level was carried to that place ; it was 

 however found to be a mere bunch, which circumstance, it is most 

 probable would have deterred the miner from an effectual search 

 after the great riches pitched upon by sinking the new shaft about 

 100 fathoms west of the former one. 



Notwithstanding Huel Alfred is one of the richest and most 



