Physico-physiological researches on the dynamics of magnetism, electricity, heat, light, crystallization, and chemism, in their relations to vital force (1851)
hadproportioned the length and breadth that each fitted exactly,like an armature, on the poles of the magnet, and all fourwere so laid upon the poles, that in closing it they were piledone upon another, all their northward poles turned towardthe southward, all their southward poles toward the… … the maid Josephine Zinkel to this, in the darkened room, she sawthese bars varying among themselves in thebanded condition, alternately red and grayincandescent, as in fig. 12. Immediatelyon the blue pole of the horse-shoe lay ared, and red-flaming bar; upon the redpole of the horse-shoe the same…
Magnetism · Animal magnetism · Physiology
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