Practical essays on hypnotism and mesmerism
An 1897 Chicago publication on hypnotism and mesmerism by Thomas Jasper Betiero, issued by the Zelah company and drawn from Library of Congress holdings, aimed at general readers curious about hypnotic practice. Its two pictures are plain black-on-cream line devices: four bold spirals set in a grid, and a diamond-shaped motif with a central pivot ringed by wavy radiating rays, suggesting a hypnotist's focal symbol. A designer might take the hypnotic spiral and sunburst ray patterns as bold graphic motifs for retro or occult themes.
