or p^titjuctton of IFtjctnefe 3 3 



lation was ended, we had a confide* 

 rable quantity, lometimes (if I mif- 

 remenj^btr not) a fifth or (ixth part, 

 of a Caput Mortuutii black as a Coal, 

 and whereof a great part was of a 

 fcarce to be exptfted fixtnefs in the 

 fiie. 



To give a higher proof of the dif- 

 pofition, that Oil of Vitriol has to 

 let fome of its parts grow fixt by 

 Combination With thofe of an excee- 

 ding volatile additament, 1 mixed 

 this liquour with an equal or double 

 weight of highly rectified Spirit of 

 fitne, and not onely after, butfome- 

 times without, previous digeftion, t 

 foiind, that the fluid parts of the mix- 

 ture being tbtally abftra&ed, there 

 W6uld remain a pretty quantity of a 

 black Subftance fo fixt as to afford 

 juft caufe of Wonder. 



And becaufe Camphire is eflfceemed 

 the rtioft fugitive of confident bo- 

 dies, in regard that, being but laid 

 in the free air, without any help of 

 the fire, it will fly a tf away ; I tried, 

 ^hat Oil of Vitriol abftra&ed from 

 G Gam" 



