Date
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  • C. Eagleton, “Medieval Sundials and Manuscript Sources: The Transmission of Information about the Navicula and the Organum Ptolomei in Fifteenth-Century Europe”
  • J. Evans & M. Marée, “A Miniature Ivory Sundial with Equinox Indicator from Ptolemaic Tanis, Egypt”
  • D. King, “An Instrument of Mass Calculation made by Naṭūlus in Baghdad ca. 900”

Optional (somewhat more technical) Readings:

  • M. Arnaldi, “An Ancient Rule for Making Portable Altitude Sundials from an “Unedited” Medieval Text of the Tenth Century”
  • M. Wright, “Greek and Roman Portable Sundials: An Ancient Essay in Approximation”