32 EcflerttoniSupontlJe^ppdtW'ier 



Copper, is nine times as heavy as a 

 bulk of water equal to it, and if it 

 be Gold 5 is nineteen times heavier 

 than the Liquor that muft keep it 

 from finking i and at leaft divers 

 times heavier in fpecie than the Salts, 

 that are mingled with the aqueous 

 part's, can make the Menftruum com- 

 pofed of them both. Whereas Trial 

 has allured me., that, if a piece of 

 Wax or any other fuch matter be 

 made by lefs than the hundredth 

 part heavier than an equal bulk of 

 Water, it will v when thoroughly 

 immerfedjfall to the bottom and reft 

 there. I might alfo ask a further 

 Queftion about thefe Di{Tolutions 5 as 

 why 5 whereas Aqua Regis diffolves 

 Mercury without being much chan- 

 ged ia colour by it, Gold retains its 

 own Citrinity or yellownefs in the 

 folvenr, and the folution of Copper 

 isof a colour, which being greenifti- 

 b!ew is quite differing from that of 

 the metal that affords it, as well as 

 from that of the folvent > And I 



might 



