44 $f tfce #ecfianical ^tgfne of 



Silver^ which would not diflblve id 

 too ftrong Aquafortif but would be 

 readily fallen upon by that Liquor^ 

 when I had weakened it with com- 

 mon Water; 



And this it may fuffice to have faidl 

 at prefent of the power or faculty 

 that is found in fome bodies of Cor* 

 roding or DifFolVing others. Where- 

 of I have not found among the A- 

 riflotelians , I have met with Co 

 much as an Offer at an Intelligible 

 account. And I the left expeft the 

 vulgar Chymifta will from their Hy- 

 poftatical Principles afford us a Sa- 

 tisfactory one, when 3 befides the Par- 

 ticulars that from the nature of the 

 things and Helmonfs Writings have 

 been lately alledg'd againft their 

 Hjpothep) I confider^ how flight ac* 

 counts they are wont to give us even 

 of the familiar Vh&notntm of Corro- 

 five Liquors. For i£ for example^ 

 you ask a vulgar Chymift why Aqud 

 fortis diffolves Silver and Copper, 



