An image of an instrument for determining the hour of the night from Sig. B8r of Sacrobosco's Libellus de spheara.
Image Courtesy of Smithsonian Institution Libraries |
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An image of an instrument for determining the hour of the night from Sig. B8r of Sacrobosco's Libellus de spheara.
Image Courtesy of Smithsonian Institution Libraries |
|
