Mundus Subterraneus, in XII libros digestus; quo divinum subterrestris mundi opificium, mira ergasteriorum naturæ in eo distributio, verbo pantámorphou Protei regnum, universæ denique naturæ majestas
Mundus Subterraneus is a 1665 Latin natural philosophy treatise by Athanasius Kircher, printed by Joannem Janssonium, presenting his theories of the earth's interior for a learned scholarly readership. Its pictures are plain black-and-white engraved diagrams of circles, spirals, polygons and geometric solids with lettered reference points, offering a designer clean schematic line work and orbit-like concentric forms.
