Traicté de la sphere du monde. : Diuisé en quatre liures, ausquels est adiousté le cinquiesme de l'vsage d'icelle.
A 1628 Paris treatise on astronomy by the Sieur Boulenger, published by Jean Moreau, written for readers learning the cosmos as it was understood before Copernicus. The four pictures are geocentric diagrams: concentric rings of planetary spheres, epicycles around a central earth, and a hemisphere with the sun's paths marked by letters, drawn in plain line with heavy black shading that a designer could borrow for schematic or diagrammatic work.
