( 268 ) 



w-ere true pitch- flone lavas, though Father 

 Terzi believed them to be real glares. 



I had not time to certify myfelf with re- 

 fpedt to the places where thefe produdions 

 were found ; but I cannot doubt the truth 

 of the accounts I received concerning them. 

 I can at lead affirm, that there was no error 

 with refpedl to the tvv^o products of which 

 I fliall now proceed to fpeak, as I found 

 them precifely in the places which had 

 been pointed out to me by the Reverend 

 Father. 



The firft of thefe is met with at the foot 

 of a very high rock, called Pendife, and 

 forms a vein, which runs from eaft to weft, 

 and, in the opinion of Father Terzi, is 

 glafs. Certainly, v/hen we , take off the 

 outer coating, which, as in a great number 

 of other ftony fubftances, is in a ftate of de- 

 compofitioUj and, confequently, has loft, in 

 a great degree, its external charaders, the 

 interior mafs may at firft deceive the eye of 

 tlie obferverj and induce him to confider it 



