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 præmis'd Part of another Discourse relating to the same Subject.
Robert Boyle
WHEREBY
SALT, SULPHUR
VULGAR SPAGYRISTS
Are wont to Endeavour to Evince their