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I fhall begin by defcribing the manner 

 in which it was obtained from two fpecies 

 of the glafles of Lipari, the fpotted and the 

 black. 



With refpecTt to the former of thefe, 

 when the fife began to heat confiderably 

 the matrafs, there appeared in the i\eceiver a 

 white cloud, which increafed till it filled the 

 whole cavity ; and then gradually difperfed, 

 adhering to the internal fides of the glafs 

 in the form of drops ; and, after two hours 

 and three quarters, entirely difappeared, 

 leaving at the bottom of the receiver a fmall 

 i]uantity of limpid liquor. 



This liquor, on examination, manifefted 

 the following charadlers : Its weight was 

 144 grains ; and its tafte was that of di- 

 luted muriatic acid. 



The ferruginous prufliate of pot-a(h, not 

 faturated, and the tindture of galls made 

 with fpirit of wine, do not fhow any iign 

 of iron. 



The 



