Phrenology : how to read the head.
A late nineteenth-century London popular guide to phrenology, published by Francis Griffiths around 1890, teaching readers to judge character from the shape of the skull and face. Its pictures are plain pen-and-ink line drawings of heads in profile and rear view, with numbered measurement marks and faculty labels; a designer could draw on their clean outlines, numbered diagram conventions, and the stiff, schematic cranial charts.
