and the other Channel Islands. 19 



have been washed away. This vein intersects the grauwacke, and 

 is nearly perpendicular, running In an east and west direction. 

 Parallel and near to it, is a similar vein, but not standing out from 

 the clifF, and between these two granite veins is contained a vein of 

 argillaceous stone about fifteen feet thick, the whole forming a sin- 

 gular kind of stratified vein lying in the grauwacke. 



I have to regret that the flowing of the tide prevented me from 

 making a more accurate examination of this interesting spot. This 

 is particularly desirable as it is said that De Carteret about one hun- 

 dred years ago wrought a copper mine here. The researches how- 

 ever of Mr. Le Pelley, the lord, have not confirmed this report, nor 

 could I distinguish any metallic traces. Their existence however is 

 not improbable, as it is well known that the rocks I have been 

 describing are very productive of metals, and that copper ore among 

 others is frequently found in similar situations. 



From this place to I'lsle des Marchands, the coast appears to con- 

 sist of the same materials. I had no time to examine it, and I 

 believe it is every where inaccessible. 



The small island itself is precisely of the same nature as the oppo- 

 site coasts. 



JERSEY. 



■The island of Jersey is in the form of a parallelogram, being about 

 ten miles long and on an average about five broad. Its inclination 

 is precisely the reverse of that of Guernsey, it being much elevated 

 to the north and shelving away to the south. It is every where 

 intersected by narrow vallies, of which the most common direction 

 is across the island, or north and south. The soil is not unlike that 



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