A system of phrenology.
George Combe's 1825 Edinburgh treatise A system of phrenology, a early medical-science book published by J. Anderson, presenting the theory that mental faculties are located on numbered regions of the skull. Its engraved plates show a bust and heads in profile and rear view with numbered cranial zones, a diagrammatic style a designer could borrow for labelled anatomical charts and scientific infographics.
