Medicina metallorum, das ist, gründliche Wissenschafft, die geringen Metalle zu reinigen und zu verbessern, durch welche nicht allein diejenige Materie, vermittelst welcher die Natur und die Kunst des Chymici, Gold und Silber hervor bringet ... entdecket wird, sondern welche auch klärlich weiset, wie vermittelst dieser Materie ... die unschätzbare transmutatio metallorum zu Wege zu bringen sey ...
An alchemical treatise on refining base metals and transmuting them into gold and silver, published in 1723 by the heirs of Johann Friedrich Braun, probably in German for chemists and adepts of the period. Its pages carry small woodcut and engraved emblems: a flowering rod with serpent and planetary symbols, tomb-like boxes with labelled figures, a winged bust above a branching diagram with a dragon, a pelican and lion, and a row of flasks, all rendered in stark black line. A designer might take the spare symbolic diagrams and inscribed boxes as models for hermetic or occult graphics.
