or at leaft a good portion thereof, 

 with it 5 and on the contrary. But 

 though this Rule holds in many cafes, 

 where there is no peculiar indifpofiti- 

 on to the efFeft that is aimed at $ yet 

 if the Mechanical affe&ions of the 

 bodies be ill fuited to fuch a purpofe, 

 our Philofophical Experiment mani- 

 festly proves,, that the Rule will not 

 ho!d 3 fince fo great a multitude of 

 grains of Mercury, in ftead of carry- 

 ing up with them one grain of the 

 Elixir, are detained by it in the ftron- 

 geft fire. And thus much for the firft 

 way. of fixing Volatile Bodies. 



CHAP. III. 



TH E fecond way of producing 

 Fixity \ is by expelling, brea- 

 king, or otherwife dtfabling thofe 

 volatile Corpufcles that are too in- 

 difpofed to be fixt themfelves, or are 

 fitted to carry up with them fuch par- 

 ticles as would not, without their 

 help, afcend. That the Expulfion 



of 



