Les Livres de Hierome Cardanus medecin milannois, intitules de la subtilité, & subtiles inuentions, : ensemble les causes occultes, & raisons d'icelles,
A French translation of Girolamo Cardano's treatise on subtleties and ingenious inventions, printed in Paris in 1556 by Charles l'Angelier for a learned readership interested in natural philosophy and mechanics. Its pictures are small woodcut diagrams of pulleys, a rope-and-block device, a geared machine, and a celestial sphere with labelled lettering, showing how the mechanisms are built and worked; a designer might borrow their clean labelled line work and schematic clarity.
