This paper was delivered largely as is at the 2020 International Medieval Congress sponsored by the University of Leeds, and is the second of three related works on Tolkien’s early cosmology.
"The Walls of the World and the Voyages of the Evening Star: The Byzantine Borders of Tolkien’s Biblical/Classical/Medieval/Geocentric/Heliocentric Complicated Cosmology,"
Journal of Tolkien Research: Vol. 13:
1, Article 3.
Available at: https://scholar.valpo.edu/journaloftolkienresearch/vol13/iss1/3