Michaelis Maieri viatorium, hoc est, de montibus planetarum septem, seu metallorum
Michael Maier's Viatorium, published in Rothomagi (Rouen) in 1651 at the expense of Johannes Berthelin, is an alchemical treatise on the seven planetary metals and their mountains, aimed at scholars of hermetic philosophy. Its engraved plates mix emblematic scenes, such as a philosopher with a table of instruments and a Roman tent scene, with a ship on a sea and a title page of allegorical figures, giving a designer dense, framed copperplate vignettes with classical costume, planetary symbols and spare line work to borrow for layout and ornament.
