“Has inter mediamque duae mortalibus aegris
Munere concessae divum.
“Sed qui proximi sunt aestivo circulo, ipsi sunt Aethiopes nimio calore perusti.” De Natura Rerum, ch. x.
[62] The two passages in which Isidore states the theory of the zones correctly are from Hyginus, Poeticon Astronomicon (Mythographi Latini, ed. Muncker, Amsterdam, 1691). Cf. p. 146.
[63] For a similar confusion of sphaera and circulus see [Appendix I].
[64] That this was Isidore’s conception of the land surface is evident from many passages (e.g., see [p. 244]) and is made certain from his map ([p. 5]). This map is found in an old edition of the Etymologies (Libri Etymologiarum ... et de Summo Bono Libri III, Venetiis, 1483) in the library of Union Theological Seminary.
[65] Cf. Psalms, 104, 2.
[66] De Ordine Creaturarum Liber, 4, 1–2.
[67] 3, 71, 3.
[68] De Natura Rerum, ch. 10.