of AitaK anU ActDum- 19 



moft Gems, befides many ignoble* 

 Stones, and Gold and Silver and Mer- 

 cury 5 and I know not how many other 

 bodies. On the other fide^there are 

 bodies that abound with Acid or Al- 

 calizat Salts., which either have no 

 Taft, or a quite differing one from 

 that of the Chymical Principle* As 

 though Venice- glafs be in great part 

 cornpofedof a fixt Alcalr yet to ther 

 Tongue it is infipid., and#Cryftalls 

 of Lune and of Lead made with Jqttd 

 fortify and containing great ftore of 

 the Acid particles of the Alenjiruum^ 

 have nothing of Acidity in the mouth,- 

 the latter having a faccharine fweet- 

 nefs^and the former an extream bit- 

 ternefs. And even inVegetable fub- 

 ftancesthat have am'anifeft Taft, hh 

 not fo eafie to know by that, whether 

 it be the Acid or the Alcalizat Prin- 

 ciple that is predominant in them 5 as 

 in ^heEffential oils of Spices and o- 

 ther Vegetables, And in the grofs 

 Empereumatical Oils of Woodland 

 eveo in high Re&ified Spirit of Wine^ 

 B 2 which 



