( 1/7 ) 



The Iflands of Ferro are confidered as 

 volcanic, and produce the famous zeolites, 

 mixed, as it is faid, with lava ; but as yet 

 we know nothing more of them. The 

 minute account of each of thefe feventeen 

 illand^, publiflied by Jacobfon Debes, in which 

 no mention is made of the vitrifications, 

 authorizes us to conclude they do not exift 

 there. 



Norway and Lapland have their volcanos, 

 which from time to time burft forth in 

 fearful eruptions, according to the accounts 

 of Pennant and others, who, however, give 

 us no further information. 



Leaving thefe cold regions, and pafling 

 to Germany and Hungary, we find fome 

 trads of thefe countries that have like- 

 wife been fubjeded to fubterranean confla- 

 grations, which, however, have produced 

 no vitrifications, or fcarcely any. " I have 

 fought in vain the black agate of Iceland, 

 and the true pumice," fays the above-cited 

 Baron Dietrich, in his long and circumftan- 



VOL, III. N tial 



