( i66 ) 



broken from the bottom, exhibited in the 

 furnace the f^jme changes with their conge- 

 nerous lavas expofed to the fame fire : the 

 feltfpars, however, remained refractory. 



The Lipari iflands extend in a right line 

 from eaft to weft the diftance of about fifty- 

 miles, except that Vulcano makes a fmall 

 angle. Strombcli is the firft to the eaft, 

 and Aiicuda the laft to the weft. This is 

 not the only inftance of volcanos having 

 produced iflands, or rather mountains, ar- 

 ranged in a rectilinear diredion. We find 

 an example of this in the Moluccas, which 

 are the produce of fubterranean fires, and 

 placed one beyond the other in a right line, 

 When, in 1707, a new iftand was thrown up 

 by a fubmarine volcano, in the Archipelago, 

 near San:orine, other fmall iflands arofe 

 from the fea near it, to the number of fe- 

 venteen, in a right line, forming, as it were, 

 a long chain of black and dark rocks, which 

 vifibly increafed in dimenfions and height, 

 and, approaching each other, at length 



united. 



