ing lome Solutions of Salts of a 

 convenient ftru&ure, as Nitre, Sal 

 Armoniac, &c. with foliated Gold, 

 Silver, &c. we have corroded thefe 

 Metals y and can diflolve fome o- 

 thers. And by boiling crude Cop- 

 per (in Filings) with Sublimate 

 and common water , we were able, 

 in no long time, to make a Solution 

 of the Metal. 



EXPER. V. 



SOmetimes alio, fo languid an Agi- 

 tation , as that which feems but 

 Sufficient to keep a Liquor in the 

 ftate of fluidity, may fuffice to give 

 fome dry bodies a corroding power, 

 which they could not otherwife ex- 

 ercife, as in the way of writing ones 

 name Cor a Motto) upon thebladeof 

 a knife with common Sublimate: 

 For, if having very thinly overlaid 

 which fide you pleafe with Bees- 

 wax, you write w'»h a bodkin or 

 fome pointed thing upon it > the 



Wax 



