Spiritualism and animal magnetism : a treatise on dreams, second sight, somnambulism, magnetic sleep, spiritual manifestations, hallucinations, and spectral visions / G.G. Zerffri.
An 1871 London treatise by Gustav Zerffi, published by Hardwicke, on animal magnetism and spiritualism, covering dreams, somnambulism and spectral visions for a general reading public. Its single picture is a schematic line drawing of two heads in profile facing each other, joined by dotted red and blue lines arcing across a cream page, with a brain shaded in red at the top of each figure and a bundle of nerve-like fibres at the lower right. A designer could take its diagrammatic, pseudo-scientific linework and the muted red-and-blue dotted-path motif for a vintage occult or mesmerist graphic.
