28 cfr t#e ^ec^anttal Cosine of 



ongto the Vegetable , fome to the 

 Mineral, and fome to the Animal 

 Kingdom$ and yet all of them and 

 divers others ( as i have tried ) may^ 

 even without the afliftance of exter- 

 nal Heat, be diffolved or corroded 

 by one (ingle Mineral Menftruum, 

 Oyl of Vitriol. And which is not 

 to be neglected on this occafion^ 

 fome of them may be bodies $ fup« 

 pofedby Chymifts to have an Anti- 

 pathy to eadh other in point of Cor- 

 rofion or Diffolution. 



EX PER. XIII. 



IObferve alfo, that a Diflblmion 

 may be made of the fame body 

 by Menfiruums , to which the Chy- 

 mifts attribute ( as I juft now ob- 

 ferved they did to, fome Bcdies ) a 

 mutual Antipathy., $nd which there- 

 fore are not like to h ive a Sympathy 

 with the fame third body* as I found 

 by triaJ* that both Aqua Fortis, and 

 Spirit uf Urine D upon whofe mix- 

 ture 



