A handbook of phrenology / by C. Donovan.
A phrenology handbook by C. Donovan, published in London in 1870 by Longmans, Green, Reader & Dyer, aimed at readers interested in the pseudoscience of reading character from skull shape. The four pictures are line drawings of hands held in measured positions against the head and face, with dotted reference lines marked 7, showing how to feel the skull's surface. A designer might take their clean, anatomical hand studies and the stiff, diagrammatic measuring lines as a model for instructional diagrams.
