The Sceptical Chymist / or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is prAEmis'd Part of another Discourse relating to the same Subject. :: OR CHYMICO-PHYSICAL Doubts and Paradoxes, Touching the EXPERIMENTS WHEREBY (2)