Cours méthodique et raisonné de sphère
Cours méthodique et raisonné de sphère is an 1837 French-language astronomy textbook by Issac Emmanuel Louis Develey, published by Benjamin Corbaz in Switzerland and held by the Swiss children's media institute SIKJM, apparently for students learning the sphere. Its engraved plates show celestial-sphere diagrams, armillary spheres, terrestrial and celestial globes, and star-chart circles with constellation patterns, with dense linework in sepia ink; a designer could draw on the precise geometric rings, meridians and hand-lettered labels for a vintage science motif.
