4 EeEectto upon t$ttymtW& 



Theory x that would derive both the 

 Qualities of Bodies and the reft of the 

 Phenomena of Nature from what they 

 call Acidum and Alcali. For though 

 thefe two differences may be met 

 with in a great number and variety 

 of bodies 5 and confequently the 

 Confederation of them may frequent- 

 ly enough be of good ufe, (efpecial- 

 ly to SpagyriftSj,and Phyfitians,when 

 they are converfant about the fecon- 

 dary and (if I may fo call them) Chy- 

 mical Caufes and Operations of di- 

 vers mixt bodies}) y et I confefi I can* 

 not acquiefce in this Hypothecs of Ah 

 J^ali and Acidum , in the latitude, 

 wherein I find it urged and applied by 

 the Admirers of it, as if it could be 

 ufefully fubftituted in the place of 

 Matter and Motion. 



The Hypothecs, Being in a fortfub- 

 ordinate to that of the tria prima r ia 

 afcribingto two contrary j aline Prin* 

 ciples what vulgar Chymifts do to 

 their Salt, Sulphured Mercury J moft 

 of thq objections we have made a- 

 gainft the vulgar Chymical Do&rine, 



may, 



