A system of phrenology
A system of phrenology by George Combe, published in Edinburgh and London in 1830, is a medical treatise that sets out the theory that mental faculties are located in distinct regions of the brain and can be read from the skull's shape. Its pictures are grid-ruled outlines of skulls and profile heads, with numbered zones marking faculties, which a designer might use for diagrammatic overlays, anatomical profile studies, or vintage scientific charts.
