The sceptical chymist: or chymico-physical doubts & paradoxes, touching the experiments whereby vulgar spargirists are wont to endeavour to evince their salt, sulphur and mercury, to be the true principles of things. To which in this edition are subjoyn'd divers experiments and notes about producibleness of chymical principles
Robert Boyle's The Sceptical Chymist, a 1680 Oxford chemistry treatise printed by Henry Hall for Richard Davis and B. Took, aimed at scholars and alchemical practitioners. Its pictures are small woodcut decorative initials, each a large letter framed by figures, foliage, and scrollwork, which a designer could borrow for historical headers, drop caps, or lettering systems.
