( 387 ) 



a Jlate of ftifton or ignition y btit is intro- 

 duced aftcrivards — This muriatic acid not 

 derived from the muriate of ammojiiac — 

 // is probable that it proceeds either from 



fubterranean places^ or from the decompo- 



ft ion of the muriate of foda. 



A^EAR the beginning of the former chap- 

 ter, it has been obferved that, when we 

 enquired whether volcanic produdis, placed 

 in matrafles and expofed to the fire, afforded 

 any gas, and of what nature, a method there 

 deicribed was adopted to afcertain whether 

 any liquor wa& produced from the fame. 

 It was alfo mentioned that fuch was ob- 

 tained, which was found to be of a very 

 fingular charad:er, and cf w^hich a defcrip- 

 tion was referved for another place, as we 

 were then occupied in the details of the 

 gafifications of the faid products, and other 

 particulars of the fame nature. It is now 

 proper to proceed to a more full defcription 

 of this liquor, and the circumftances that 

 accompatiied it. 



C c 2 I fhall 



