fufficient Proof. And perhaps the 

 very diftribution of Salts into Acids 

 andAlcalies hath fomewhat of arbi- 

 trary in it fince others may, without 

 aflumiog much more, take the free- 

 dom to diftribute them otherwife, 

 there being not only feveral things 

 wherein Acids and Alcalies agree,but 

 alfb feveral things wherein Salts of 

 the fame denomination widely differ* 

 As,for Inftance^fomeAlkalieSjaccord* 

 ing to thofe I reafon with r are, like 

 fait of Tartar,fixt 5 and will endure the 

 violence of the fire > others, like fait 

 of linn or Harts-horn, are exceed- 

 ingly fugitive, and will be driven up 

 with a fcarce fenfible degree of Heat; 

 fome 5 as fait of Tartar,will precipitate 

 the folution of Sublimate into an 

 Orange-tawny i others, as fpirit of 

 Blood and Harts-horn, precipitate 

 fuch a folution into a milky fubftance. 

 Oil of Tartar will very (lowly ope* 

 rate upon filings of Copper , which 

 Spirit of lit in and Harts-horn will 

 feadily diffolve in the Fire. 



And 



