( 178 ) 



ilai Memoir relative to the volcanos near 

 Old-Brifach, 



t 



Proceeding to a milder cliniate, and ap- 

 proaching nearer to our own country, we 

 find that the extlnft volcanos of France af- 

 ford no pumices or glalTes ; which affertion 

 I can make on the authcrity of M. FaujaSy 

 who has written fo well concerning them, 

 than which one more unqueftionable cannot 

 be adduced. 



It is not the fame with Italy ; the coiin- 

 -try in which fire has principally extended 

 its empire. The Neapolitan territory pe- 

 culiarly abounds in pumices, enamels, and 

 glalTes, as appears in the iflands of Ponza, 

 at Herculaneum, Pompeii, Mifeno, Monte 

 Nuovo, the Rock of Burnt Stones, Proci- 

 da, Ifchia, and the valley of Metelona *. 

 Even in our times Vefuvius has ejected 

 fimilar bodies ; but, with refpedt to Etna, 

 its fires rarely produce the fllghteft vitri- 

 fication, 



' * Sec Chaps. IV, V, VI. 



The 



