[ 3 1 



Way into the Sea, and the Stones are of 

 the Nature of thofe called Bafaltes or Ba- 

 fanus. It may be concluded that the 

 Giants Caufeway is entirely the Work of 

 Nature, as many fuch Pillars or Columns 

 were found by the Ancients in ^Ethiopiay 

 of the fame angular Form as thofe in Ire- 

 land, and by them called Bafaltes ; they 

 met with it in Fragments of Columns in 

 the River T^molus^ and fome other Places, 

 when they gave it the Name of Lapis 

 Lydius^ not conceiving it to be the fame 

 as the Bafaltes found in Pillars. We have 

 it frequently in Spain^ Germany^ Ruffia^ 

 and Denmark, and about Brefden is much 

 of it in fine Columns. Wherever it is 

 found, on being analyfed by Acids, it 

 proves to be compofed of an Admixture 

 of Cryftal, Spar, and Earth. It is now 

 ufed for trying Gold, ^c, and is called 

 the Touch-flone. The Church of Bally" 

 wellan, in the Neighbourhood of Coleraine^ 

 is built of this Kind of Marble, found in 

 the adjacent Hills. 



B 2 The 



