Philalethae tractatus tres : Metallorum metamorphosis ; Brevis manuductio ad rubinum coelestem ; Fons chymicae veritatis
A 1677 alchemical treatise collection credited to Marin Cureau de La Chambre under the pseudonym Philalethes, published by Sande and held in the C.G. Jung library, aimed at readers of chymical and esoteric philosophy. The single picture is a black woodcut-style ornament of interlaced scrolls and foliate curls forming a symmetrical shield-like panel, a tidy source for vintage tailpiece or border motifs.
