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 (1665)
Joannem Janssonium · leaf 54
auttriangu-larem heceft , quodhomo pon-tem qua-dratum per-ambulans ,in quatuortantum lo-cisACDE,re&am fu-perficiem inveniret, fi quidem ab A, ver-fus B, continu6 afcenderet, a B verb ver-fus C, continub defcenderet, paripactointriangulari ponte A B C D E F in pundtisB DE planumimaginari…
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