Apuleian Sphere
The Apuleian Sphere, also known as 'Columcille's Circle' or 'Petosiris's Circle' is a magical prognosticating device for predicting the survival of a patient.
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“In science, as in art, and, as I believe, in every other sphere of human activity, there may be wisdom in a multitude of counsellors, but it is only in one or two of them.”
—Thomas Henry Huxley (1825–95)