Note 48 — Chapter I · The Development of Astronomical Thought to 1400 A.D. A Preliminary Sketch of Early Theories as a Background.
Reading edition
Isidore of Seville: De Ordine Creaturarum, c. 5, sec. 3, (v. 83, p. 923).
Reading edition
Isidore of Seville: De Ordine Creaturarum, c. 5, sec. 3, (v. 83, p. 923).