La restitution de Pluton...des mines & minieres de France, cachées & detenues...
A 1640 French treatise by Martine de Bertereau, printed in Paris by Hervé du Mesnil, on locating metal mines and minerals in France through astrological charts. The four plates are square diagrams with a central panel of dates and planetary symbols, surrounded by zodiac signs, planet glyphs and degree numbers in eight triangular fields, with a French caption below each. A designer might take their rigid radial symmetry, framed grid layout and dense cartographic-style typography as a model for ornamental astrological or alchemical charts.
