Michael Maier was a German physician and counsellor to Rudolf II Habsburg. He was a learned alchemist, epigramist, and amateur composer.
Copper engraving of Michael Maier, from Symbola avreae mensae dvodecim nationvm (Matthäus Merian, 1617)
Image taken from the hermetic splendid book Atalanta Fugiens by Michael Maier
Discursus XXXI, Epigramma XXXI, from Atalanta fugiens, 1617
Toad on a Bosom - Atalanta Fugiens, 1618
Lucas Jennis was a German engraver. He was the leading publisher of alchemical works of his time.
Title page of Musaeum Hermeticum, published by Jennis in 1625.