EXPER. VI 



THis briogs into my mind an 

 Obfervation I have fometimes 

 had occafion to make, that I found 

 more ufeful than common, and it i% 

 That divers Bodies , whether di- 

 ftiird or not diftiU'd , that are not; 

 thought capable of diffolving other 

 Bodies, becaule in moderate degrees 

 of heat they will not work on them, 

 may yet by intenfe degrees of heat 

 be brought to be fit Solvents for 

 them. To which purpofe I remem- 

 ber y that having a diftiird Liquor, 

 which was rather fwcet to the tafte v 

 than either acid, lixiviate or urinous^ 

 though for that reafon it feem'd un- 

 fit to work on Pearls 3 and accord- 

 ingly did not diflblve them in a con- 

 fiderable tirne^ wherein they were 

 kept with it in a more thapordina* 

 rily warm digeftion i yet the Glafs 

 being for many hours (amounting 

 perhaps to fome days ) kept in fuch | 

 E an 



