or $>2otmttion of ft tfnefo* 2 9 



the Retort red-hot for a good while > 

 yet the Nitrous and Saline fpirits 

 would by no means be driven away 

 from the Silver, but continued in fu- 

 fion with it 5 and when the maffe was 

 taken out, thefe Spirits did fo abound 

 in it, that it had no appearance of a 

 Metal, but looked rather like a thick 

 piece of Horn. 



The next Inftance I (hall name is 

 afforded us by that kind of Turbith^ 

 which may be made by Oil of Vitriol^ 

 in (lead of the Aquafortis imployed in 

 the common Turpethum Miner ale. For, 

 though Oil of Vitriol be a diftilled 

 liquour, and Mercury a body volatile 

 enough } yet, when we abftrafted 

 four or five parts of Oil of Vitriol 

 from one of Quick- filver,, (efpecial- 

 ly if the operation were repeated, ) 

 and then waflhed off as much as we 

 could of the faline particles of the Oil 

 of Vitriol 5 yet thofe that remained 

 adhering to the Mercury made it for 

 more fixt, than either of theliquours 

 had been before, and inabled it even 

 in a Crucible to endure fuch a degree 



of 



