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 b the Generality of
ALCHYMIST

Whereunto is praemis'd Part of another Discourse
relating to the same Subject.

B Y

The Honourable ROBERT BOYLE, Esq;

LONDON,

Printed by J. Cadwell for J. Crooke, and are to
Sold at the Ship in St. Paul's Church-Yard.
M D C L X I