Hydrolithus sophicus seu aquarium sapientum, hoc est opusculum chymicum, in quo via monstratur, materia nominatur, & processus describitur, quomodo videlicet ad universalem tincturam perveniendum, hactenus nondum visum ...
A 1677 alchemical treatise, the Hydrolithus sophicus, printed by Hermann a Sande and held by the C.G. Jung library, addressed to students of chymistry seeking the universal tincture. Its single picture is a small black-ink woodcut ornament of scrolling acanthus-like foliage and a central shield-shaped motif, with dense hatched shading that a designer could borrow for a heraldic emblem, decorative border, or vintage seal.
